Education

Triple honors for mechanical engineering graduate

Anonymous — Wed, 20 Dec 2023 22:31:16 +0000

Triple honors for mechanical engineering graduate Anonymous (not verified) Wed, 12/20/2023 - 15:31

Jeff Zehnder

Above: Palmer Dick-Montez working on electronics with an oscilloscope.
Headline Photo: Palmer Dick-Montez at the Grand Canyon.

Palmer Dick-Montez is receiving major kudos as he graduates with a mechanical engineering degree from the University of Colorado Boulder.

He is a 2023 recipient of three separate College of Engineering and Applied Science Outstanding Graduate Awards for Academic Engagement, Community Impact, and Research.

“It’s humbling. I didn’t really expect to be honored like this. It especially feels good to be recognized for making an impact on the CU Engineering community outside myself, helping others,” Dick-Montez said.

His contributions have been substantial. He is a course assistant in the mechanical engineering senior design program and is part of Engineering Fellows, a college initiative that assists students at risk of falling behind or dropping out.

“It’s peer mentoring, review sessions, office hours for students who are struggling,” he said. “It offers not only academic support but also a community of other students. I’ve really benefitted from peer mentors and TAs and wanted to be that support for other students.”

Julie Steinbrenner, an assistant teaching professor in the Rady Department of Mechanical Engineering, particularly praises Dick-Montez’s efforts as part of senior design.

“Palmer is a dedicated student, a role model and mentor for other students. He held his senior design team to high standards and is a go-to resource for his classmates because he’s thoughtful and motivated,” Steinbrenner said.

His impact extends outside the classroom into research. Last year, Associate Professor Nathalie Vriend invited him to assist on an avalanche analysis study. He dove in with gusto, analyzing a massive dataset probing how a simulated snow bed behaves, settles, and flows after an avalanche event.

“This is a hard analysis for any PhD student. Palmer took up the challenge as an undergraduate with confidence and produced an excellent body of work in only three months,” Vriend said.

He is working on a paper related the work, which the team hopes to publish next year. Vriend is also organizing a larger follow-up experiment that Dick-Montez hopes to assist with after graduation.

“I really enjoyed the process of working on something there isn’t a lot of literature on and figuring out the cause and effect of things,” Dick-Montez said.

While Dick-Montez loves engineering, he is equally drawn to studying the past, earning a minor in anthropology alongside his mechanical engineering degree. He also spent two years as co-president of the ��ý�Ļ��Ʒ Anthropology Club.

Immediately following graduation, he intends to join a six-month archaeological dig in Oaxaca, Mexico, studying a pre-Hispanic, indigenous Mexican village site.

“I did a study abroad in Mexico for archaeology with the same professor and I loved it and want to do more,” he said. “I’m very interested in both engineering and anthropology, but there are more career possibilities in engineering. I can continue with anthropology outside of a career.”

Following the dig, he will pursue an engineering job in either aerospace or marine robotics, which was the focus of his senior design project.

“I’d like to stay in Colorado; I grew up here, but I know if I go into marine robotics I will not be staying in a landlocked state,” Dick-Montez said.

Palmer Dick-Montez is receiving major kudos as he graduates with a mechanical engineering degree from the University of Colorado Boulder. He is a 2023 recipient of three separate College of...

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��ý�Ļ��Ʒ offers new graduate program in robotics

Anonymous — Wed, 20 Sep 2023 06:00:00 +0000

��ý�Ļ��Ʒ offers new graduate program in robotics Anonymous (not verified) Wed, 09/20/2023 - 00:00

The University of Colorado Boulder has started a graduate engineering program in robotics to fill a growing need in an in-demand field.

The CU Regents have approved new Master of Science and PhD degree options in robotics that will provide students a flexible education that merges hardware and software engineering, mathematics and artificial intelligence into a single program.

“Demand is so high for degrees like this across the country; it’s something students and employers really want,” said Sean Humbert, director of the Robotics Program and a professor in the Paul M. Rady Department of Mechanical Engineering.

The program brings together a wide array of faculty, research and class options from the College of Engineering and Applied Science, according to Chris Heckman, associate professor of computer science and the robotics program.

“The workforce in robotics is often siloed, with people only being specialists in certain elements. We want students to be able to work across the field in computer science, mechanical, electrical, aerospace, wherever they need to be,” Heckman said.

Students enrolled in the program can choose from 40+ different courses taught by leading researchers with strong expertise in key areas, including field robotics, reasoning and assurance, smart materials, human-centered robotics and biomedical robotics.

“��ý�Ļ��Ʒ is really strong in robotics, and now we’re bringing together all that expertise,” Humbert said. “This field is so interdisciplinary, and we have strong connections and teams both within the university and in industry and the public sector.”

Boulder and Colorado’s Front Range is home to many businesses active in robotics, providing educational partnership and career options for students and graduates, according to Alessandro Roncone, associate director of the Robotics Program and an assistant professor of computer science.

“This program positions students at the nexus of innovative research and real-world application. Not only will they be taught by leading experts in the field, but they'll also have the opportunity to become leaders in robotics and AI. We are committed to fostering creativity and innovation, and our strong tech ecosystem locally provides an unparalleled environment for growth and discovery,” Roncone said.

In addition to a research-focused PhD, students enrolled in the master’s program can choose from thesis and non-thesis options, providing graduates with opportunities in academia and technical leadership positions in large industry, startups, emergency services and government.

The program officially launched for the fall 2023 semester, with students transferring into the program from other CU Engineering graduate programs. Prospective students from outside the university will be welcomed starting in fall 2024. That application window is now open.

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Deployable antenna could provide more powerful communications on smaller space satellites

Anonymous — Mon, 02 May 2022 14:48:42 +0000

Deployable antenna could provide more powerful communications on smaller space satellites Anonymous (not verified) Mon, 05/02/2022 - 08:48

Rachel Leuthauser

Deployable Helical Antenna Team Members

Jackson Bilello – Electromechanical Engineer
GillianGrace Brachocki – Project Manager
Hector Calar – Systems Engineer
Benjamin Capek – Manufacturing Engineer
Ahmed Ferjani – Logistics Manager
Ayden Flynn – Financial Manager
Nicolas Garzione – Electromechanical Engineer
Caleb Morford – Test Engineer
Isaac Nagel-Brice – CAD Engineer
Manuel Preston de Miranda – Electromechanical Engineer

As the space industry evolves its focus from large satellites to smaller ones with the same functionality, there is a growing need for the hardware on board to shrink as well.

A group of mechanical engineering seniors at the University of Colorado Boulder have helped meet that need by designing a compactable antenna that would allow for more powerful radio communications on smaller satellites.

Lockheed Martin Space is sponsoring the project. The team of students from the Paul M. Rady Department of Mechanical Engineering designed and built the prototype for their Senior Design project.

“Our whole team has a passion for the space industry, and we wanted to be a part of the change and innovation that is occurring,” said GillianGrace Brachoki, the team’s project manager. “We found the push for deployable items in smaller units really interesting.”

The team’s prototype is a deployable helical antenna that starts in a compressed state. Current satellite antenna hardware is fully deployed upon launch. Those systems can be large and not aligned with the industry’s goal for smaller hardware.

“Small satellites and micro-satellites lead to a nimbler industry,” said CAD Engineer Isaac Nagel-Brice. “If you’re developing a satellite over two years instead of a decade, you’re able to get smaller buses up into orbit quicker and at a cheaper cost. That can push innovation and progression on a much faster scale.”

The helical antenna in its fully deployed state.

The students assemble the antenna by attaching the spring component to the base.

The students test the spring's strength in the Senior Design Lab.

The students designed their antenna to deploy once it is in space – activated by an on-board computer. This would trigger the device’s antenna component to extend four times its compressed height from 3.5 in. to nearly 20 in. for full functionality.

The team accomplished this by designing the antenna with the properties of a mechanical spring, which is an idea the industry has rarely attempted to build before. The students explained that optimizing the prototype to be both a spring and an antenna was difficult to do.

They had to take geometry, material and frequency band all into consideration. The students used spring calculators and high frequency structure simulator software to build an antenna that could stow and deploy with the properties of a mechanical spring.

“The antenna geometry resulted in a powerful spring,” said Nicolas Garzione, one of the electromechanical engineers on the team. “Part of our requirements is that it has to survive the equivalent of an Atlas V launch, which is pretty violent. We spent a lot of time on that restraint mechanism, which is a key part of our project for viability and safety.”

Lockheed Martin Space also required that the prototype needed to be scalable. Therefore, the students designed every part of the deployable antenna to be scaled plus or minus 50%.

The size of the device would also dictate the radiofrequency bands transmitted through the antenna. A larger spring circumference would require higher frequencies.

“I think this prototype could lead to a shift in the industry,” said Nagel-Brice. “Our antenna has some interesting design geometry, but it’s very intentional so that it can be built larger or smaller.”

The students have completed antenna functionality, deployment, mechanical shock and vibration tests on their prototype. The radiofrequency testing was done at First RF, a company specializing in antennas and radiofrequency systems, while the vibration testing happened at Lockheed Martin.

The team said that working with Lockheed Martin Space on this project has been both inspiring and informative. It has allowed the students to combine their mechanical engineering background with new skills they have learned on the job.

“It’s a lot of cutting-edge technology that hasn’t been implemented in this manner until now, thanks to some creative problem solving,” said Systems Engineer Hector Calar. “Shrinking the hardware down means the industry can add more advanced instrumentation, since you have more free space. Freeing up that space on rockets and satellites allows us to do more with the science of engineering.”

The team can now say that they are a part of that push for cutting-edge, compact technology. With their own innovative design assembled into a potentially revolutionary prototype, the students are well on their way to equipping the space industry for greater scientific impacts.

The Senior Design team presented their deployable helical antenna at the College of Engineering and Applied Science Engineering Projects Expo 2022 on April 22.

A group of mechanical engineering students at the College of Engineering and Applied Science designed and built the prototype with Lockheed Martin for their Senior Design project.

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Integrated Teaching & Learning Program offers first college micro-credential

Anonymous — Fri, 29 Apr 2022 14:23:22 +0000

Integrated Teaching & Learning Program offers first college micro-credential Anonymous (not verified) Fri, 04/29/2022 - 08:23

Josh Miller, a mechanical engineering student, is the first to enroll in the ITLP Arduino micro-credential - a programs that aims to serve students looking to improve their proficiency with Arduino microcontrollers.

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ME Course Column: Mechanics of Cancer

Anonymous — Wed, 27 Apr 2022 18:53:37 +0000

ME Course Column: Mechanics of Cancer Anonymous (not verified) Wed, 04/27/2022 - 12:53

Rachel Leuthauser

The ME Course Column is a recurring publication about the unique classes and labs that mechanical engineers can take while at the University of Colorado Boulder. Follow the series to understand the core curriculum, discover elective course options and learn the broad applications of mechanical engineering skills.

Professor Maureen Lynch

In order to comprehend certain aspects of cancer biology, the mechanics driving the disease need to be understood. The mechanics of cancer can teach engineers a lot about how the cells interact with each other and form solid tumors.

Students in the Department of Mechanical Engineering are learning how those solid and fluid mechanics play a role in the course MCEN 4228/5228: Mechanics of Cancer. Taught by Professor Maureen Lynch, the class examines the experimental systems and technical evaluations of solid tumors to model and test cancer-related processes.

The course starts with Lynch reminding students of what the most common way that breast cancer is diagnosed – by feeling it.

“These changes in stiffness or density are a mechanical piece for diagnosis,” said Lynch. “Not only is it an indication that there is a tumor present, but it also plays a role in examining how quickly the tumor is developing, if the tumor going to spread or which treatments the tumor is sensitive to. Physical cues matter.”

The mechanical engineering students taking this course come in with the basic knowledge of what stiffness is in engineering terms. Their understanding expands as the course dives into how they can measure those density changes and connect them to tumor progression.

“We measure everything from the tissue level, which you can see with your eyes, down to the microscopic or nanoscale where you can’t see what you’re measuring,” said Lynch. “You need to know whether you’re measuring a single cell or a single protein and what scale to use.”

Flowchart showing how mechanics influence cancer progression.

Lynch explained that students also learn to examine the speed of fluids as it relates to cancer spread, since tissues are mostly made up of water. Fluid could potentially carry tumor cells to different parts of the body.

“The students like the connection that this class makes to their other engineering classes,” said Lynch. “I will pull up figures from their sophomore or junior year classes and explain how they are useful in biology. We use our engineering skills in a brand-new way.”

As the semester wraps up, the students are conducting final presentations on technical topics of their choice surrounding the mechanics of cancer.

“I give a lot of latitude with those presentations, so I always learn something because we can’t cover everything about the mechanics of cancer in one semester,” said Lynch. “The students pick what they want to research and what they want to talk about.”

MCEN 4228/5228: Mechanics of Cancer is generally offered in the spring semester. It is open to juniors, seniors and graduate students in the Department of Mechanical Engineering and admits some students from the Biomedical Engineering Program.

ME Technical Elective & Graduate Courses

Students learn how solid and fluid mechanics play a role in how cancer cells interact and form solid tumors. Taught by Professor Maureen Lynch, the class examines the experimental systems and technical evaluations of the disease to model and test cancer-related processes.

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Mechanical engineering students aim to make silicon wafer inspections more efficient

Anonymous — Tue, 19 Apr 2022 14:52:05 +0000

Mechanical engineering students aim to make silicon wafer inspections more efficient Anonymous (not verified) Tue, 04/19/2022 - 08:52

Rachel Leuthauser

Silicon Wafer Center-finding Improvement Team Members

Jack Carver – Project Manager
Dario Garcia – Logistics Manager
Prem Griddalur – Systems Engineer
Hank Kussin-Bordo – CAD Engineer
Marty LaRocque – Electro-mechanical Engineer
Ethan Plott – Financial Manager
Noah Sgambellone – Test Engineer
Gavin Zimmerman – Software Engineer

The shortage of semiconductors – the computer chips that products such as smartphones, laptops, cars and even washing machines rely on – continues to impact industries around the world.

The current supply chain issues are motivating engineers to make the inspection of the silicon wafers that semiconductors are fabricated from more efficient. It is a goal that the industry would focus on even without the global shortage. To help accomplish that, University of Colorado mechanical engineering students have developed a device that improves the inspection process.

The Department of Mechanical Engineering seniors have built a silicon wafer center-finding improvement device for KLA, a semiconductor manufacturing company. The Senior Design team’s prototype uses two cameras to capture the circular wafer’s edge, plus computer software to calculate the radius and find the wafer’s center.

“The reason this is important is that KLA has to inspect these wafers for defects, and when they find one, they need to know where on the wafer it is with a high-level of precision,” said Marty LaRocque, the team’s electro-mechanical engineer. “They have to establish a coordinate system on the wafer and the hardest part of that is finding the center.”

Marty LaRocque looks over the team's silicon wafer center-finding improvement device.

The device uses two cameras to capture the wafer's edge.

Currently, KLA is detecting the wafer’s center with ten different images around the edge. The team of students designed their device to find the center just as efficiently with only two images.

“On one of KLA’s inspection tools, it currently takes them eight seconds to align one wafer, and we’re trying to get that down to two seconds,” said Project Manager Jack Carver. “A 75% reduction is going to get so much more throughput. With the global silicon wafer supply shortage, any improvements in that would be greatly beneficial for them.”

The real-world impact that the students’ device could have on the industry is part of the reason this project enticed them.

“It’s interesting because KLA explained to us the real significance of our prototype,” said Prem Griddalur, the systems engineer on the team. “About every two years, the size of the semiconductor becomes smaller, and at the same time, the scale they’re manufacturing these at gets larger because of increased demand. KLA did a great job explaining why their equipment is important and how our project plays a role in the larger scheme of the industry.”

The team captured their first position of the wafer’s center in early March. They are now running statistical tests and taking measurements to check the device’s accuracy. They need the coordinates to be within 10 microns of the true center, which is the width of a human red blood cell.

Since the team’s device is a prototype, KLA’s system may not end up looking exactly like the students’ design. However, their prototype and tests will still provide the company with critical information to help guide decisions about future designs.

The students said that aspect is relatable to real-world scenarios. Typically, engineers are tasked with making current systems better, rather than creating new designs from scratch.

The global shortage of semiconductors – the computer chips that products such as smartphones, laptops, cars and even washing machines rely on – are motivating engineers to improve the inspection of the silicon wafers that semiconductors are fabricated from. To help accomplish that, Department of Mechanical Engineering students have built a silicon wafer center-finding improvement device

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Mechanical engineering students develop a soft robot to improve lung examinations

Anonymous — Fri, 15 Apr 2022 14:39:48 +0000

Mechanical engineering students develop a soft robot to improve lung examinations Anonymous (not verified) Fri, 04/15/2022 - 08:39

Rachel Leuthauser

Soft Robot for Surgical Interventions Team

Maxwell Anderson – Logistics Manager
Sean Dunkelman – Systems Engineer
Christopher Gonzalez – Software Engineer
Brady King – Electro-mechanical Engineer
Isaac Martinez – CAD Engineer
Brad Nam – Manufacturing Engineer
Caitlyn Robinson – Test Engineer
Renée Schnettler – Project Manager
William Wang – Electro-mechanical Engineer
William Watkins – Financial Manager

Seniors in the Department of Mechanical Engineering at the University of Colorado Boulder are designing a new soft robot to improve physicians’ ability to examine the deepest part of a patient’s lung.

Currently, there is only one system that can get down to the bottom of the lungs – a rigid catheter that could potentially cause inflammation. The team of mechanical engineering students are working with medical device company Medtronic on making the tip of that catheter more flexible.

“Our client is hoping to reduce the strain on the body by replacing the end of the device with something that is very compliant and soft, especially in comparison to the materials that are used today,” said Maxwell Anderson, the team’s logistics manager. “We’re trying to create a soft robot for the tip that will allow the physician to have more control of the end and have it be less abrasive toward the patient.”

The students are tackling this project as part of the department’s Senior Design course. They have spent the academic year researching, designing, molding and testing various iterations of their soft robot prototype.

An iterative design process

Renée Schnettler and Maxwell Anderson show how the soft robot bends with air pressure.

Sean Dunkelsman, William Wang and Brady King test the team's control system.

The team’s baseline design is a hollow, silicone tube with bubbles on the outside. The bubbles expand as the soft robot is inflated with air pressure, which causes the tube to bend. The students explained that the bending motion is the key aspect of their design, as that configuration is what allows the soft robot to move through the deeper parts of the lung.

“The catheter still does most of the work during the procedure, and then physicians control the soft robot at the very end to just move the tip,” said Renée Schnettler, the team’s project manager. “It can hook into different areas and allow doctors to send a needle through it to take a sample of any lung tissue they are studying.”

The team said they are constantly making new prototypes for testing purposes. The R&D process has resulted in 55 prototypes since fall 2021.

“A lot of what we’ve been doing is building off of our baseline design,” said Isaac Martinez, the CAD engineer on the team. “We watch how that prototype behaved and try changing certain dimensions. That would be one iteration. Then we change another aspect, like the number of bubbles, and that becomes a second iteration. We’ve been trying to put together this full picture from a lot of different prototypes.”

Each change in the prototype’s design has been targeted and intentional. That includes adjustments to the soft robot’s control system.

“Our control team has spent a lot of time just trying to figure out how we can tell where the tip of the robot is,” said electro-mechanical engineer William Wang. “We have been trying to improve our control systems to hit the desired positions, but each iteration of our prototype behaves slightly different depending on the material properties. We’ve been trying to find more robust techniques to control all of them.”

The seniors are working with Medtronic to design a soft robot that would give physicians more control as they examine the deepest part of a patient's lung and make the procedure less abrasive for the patient.

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Mechanical Engineering Senior Design Projects 2022

Anonymous — Wed, 13 Apr 2022 18:14:08 +0000

Mechanical Engineering Senior Design Projects 2022 Anonymous (not verified) Wed, 04/13/2022 - 12:14

Since August 2021, more than 200 mechanical engineering students have been working through the design process from start to finish and have engineered solutions to real-world problems.

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Colorado community college students to get leg up on degrees in mechanical and civil engineering

Anonymous — Thu, 24 Mar 2022 14:21:12 +0000

Colorado community college students to get leg up on degrees in mechanical and civil engineering Anonymous (not verified) Thu, 03/24/2022 - 08:21

Colorado's community college students will soon have a more direct path to achieving an engineering degree at ��ý�Ļ��Ʒ.

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ME Course Column: Mechanics of Snow

Anonymous — Thu, 17 Mar 2022 15:45:29 +0000

ME Course Column: Mechanics of Snow Anonymous (not verified) Thu, 03/17/2022 - 09:45

Rachel Leuthauser

Most mechanical engineers will work with materials such as metals, polymers, ceramics and composites during their careers. However, a course taught by Department of Mechanical Engineering Professors Francois Barthelat and Franck Vernerey asks students to draw inspiration from another material – snow.

“I am a backcountry skier and as such, you have to learn a lot about avalanches and take courses for safety,” Vernerey said. “You realize there is so much mechanics involved with snow.”

Above: Professors Francois Barthelat and Franck Vernerey
Header image: Barthelat and Vernerey guide students through a slide test.

MCEN 4228/5228: Mechanics of Snow motivates students to look at their environment and the materials around them in an analytical way. The idea behind the course is to teach students the science behind certain phenomena by looking at the fundamentals of snow and ice from the atomic level to the mechanics of the snowpack.

“Snow in itself is an interesting material to study, you do not necessarily think of looking at snow in the context of mechanics of materials, but there is a lot to learn from this approach,” Barthelat said. “This is a great a way to expose students to state-of-the-art experimental and modeling techniques that people use in engineering.”

While studying the properties of natural versus artificial snow, the mechanics of sliding on skis and snowboards, or the conditions that trigger avalanches, students also master theoretical tools such as fracture mechanics and heat transfer. They also learn about the relationship between molecular structures, thermodynamics, and micromechanics, including viscoelasticity.

The professors explained that applying these critical engineering concepts to snow helps students better understand the information. It allows them to see that these concepts are real and happening in our environment.

“We often teach mechanics of materials and students are not always connected to the course because they have not worked with the materials before,” Vernerey said. “They learn the equations but may have difficulties connecting them to the real world. This course allows them to better connect because they already have an idea about the material. They are much more motivated to learn.”

Mechanical engineering students conduct slide tests on a snowboard.

Students in Mechanics of Snow conducted their own research out in the elements on March 10, after Boulder received about four inches of snow. They measured the densities of the fresh and old snow, assessed their compressive strength and calculated the snow’s coefficients of friction on skis and snowboards.

The class will take one more field trip outside to conduct strength and fracture tests on the snow before completing final projects to wrap up the semester. Some students are looking at avalanche conditions, while others are studying the impact mechanics of snowballs or snow construction such as igloos and walls.

“A big takeaway from this course is that students will be exposed to a vast number of topics in engineering and physics,” Barthelat said. “If they need these in their professional life later on, they know that the concepts exist and where to find more information.”

Mechanics of Snow is a technical elective open to upper-level undergraduate and graduate mechanical engineering students.

View all the Mechanical Engineering Technical Elective Courses

MCEN 4228/5228: Mechanics of Snow motivates students to look at natural materials in an analytical way. The idea behind the course is to teach students the science behind certain phenomena by looking at the fundamentals of snow and ice from the atomic level to the mechanics of the snowpack.

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Education

Triple honors for mechanical engineering graduate

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����������ý�Ļ���Ʒ offers new graduate program in robotics

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Deployable antenna could provide more powerful communications on smaller space satellites

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Integrated Teaching & Learning Program offers first college micro-credential

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ME Course Column: Mechanics of Cancer

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Mechanical engineering students aim to make silicon wafer inspections more efficient

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Mechanical engineering students develop a soft robot to improve lung examinations

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Mechanical Engineering Senior Design Projects 2022

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Colorado community college students to get leg up on degrees in mechanical and civil engineering

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ME Course Column: Mechanics of Snow

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��ý�Ļ��Ʒ offers new graduate program in robotics