Pocket Prototyping

Dear Engineering Stories followers, It has been a great #engineering#career so far including my #coaching of about 20 teams in 20 years at the local university. I’ve noticed a few things over the years that could help newer engineers be more successful, and I offer ‘Pocket #Prototyping‘ pointers in this article in the BYU Design Review. Please read it and then share it with your colleagues (and ask them to share it), especially with those just getting started in engineering and #design who need #mentoring. Thanks, Ken

Pocket Prototyping, BYU Design Review

#EngineerClips – “Drawn to Write” – by Ken Hardman (Feb. 27, 2022)

#EngineerClips – ‘Elevator App’ by Ken Hardman

#EngineerClips – Bathing with Bottles

by Kenneth Hardman

“Jake!” Mom calls out from the bathroom.

“Ya, Mom?”

“Why is there a case of bottled water in my bathtub?”

“It’s an engineering experiment, for my middle-school science class.”

“An engineering exp…?” Mom pauses, then slowly inquires. “Let me guess, you are… trying to optimize… water cooling by…”

Jake enters the room. “No. It’s a water conservation experiment.”

“So…” Mom scratches her head. “You are re-using bath water by putting it in the bottles?”

“No, Mom.” Jake exhales a puff of air. “The water bottles displace, or reduce the water needed for the bath. You get the same deep soak with two gallons less fresh water using thirty-two, 8 ounce bottles.”

Mom now squinting, and still scratching her head. “Thirty-two? Do I have to sit on the bottles?”

“Of course not. Thanks to Archimedes’, the small air bubble in each bottle keeps it buoyant, barely breaking the water surface. They’re small enough that they should move around easily in the bath.”

“Oh!” Mom gets it, thinking through the process. “Who’s Archimedes’? Never mind. So, do I have to tell my friends that I bathe with plastic bottles?”

“Look,” Jake walks to the tub and picks up a bottle. “In addition to satisfaction helping the planet, you get drinking water storage, waste water reduction, less guilt from taking a 30 gallon bath instead of a 15 gallon shower, and reduced land fill, all by giving up your pride. And! If you get thirsty while bathing, well, they’ve never been opened; just grab a bottle. Oh, and did I mention the free reading material? The labels are waterproof.”

Spreading Spectrum Modulation and Peanut Butter – Part 2

(Continued from Part 1)

“I can’t open my jar of peanut butter,” he exclaimed from the corner of his mouth with an overturned jar in his lap. “You’re a mechanical engineer; let’s design a mechanism for my wheel chair that will grip the bottle while I unscrew the lid?” Such needs launched my mind into new and page-turning design activities; as usual. (I love it when this happens. No, I mean, not when people have strokes, or can’t eat their peanut butter, but you know the english proverb, “Necessity is the mother of invention?” I’m surprised he didn’t suggest a capacitive or inductive solution.)

I watched him try to open jars and spread peanut butter. I sketched some ideas, I walked up and down isles at the hardware store for inspiration, then I purchased some aluminum bars, springs, thick rubber coating dip, and a polypropylene bread board and went home to my garage. I drilled mounting holes and a smooth gripping-slot in the cutting board, made wheel chair mounting brackets, bent the aluminum into a round jar-gripper in my vise-clamp, dipped the hand lever in liquid rubber, then mounted everything to the board, and headed back for a test drive on the wheel chair. We tried it, changed it, collaborated on it, revised it, and… Such challenges accelerate and often consume my mental capacities. Just like my father-in-law, I love these creative mental gymnastics. In good taste (or full disclosure), I can’t say that this invention was a gripping success, (I probably should have meditated on a park bench in a national park before going to the hardware store); we eventually set it aside and went on to other things. But I can say that it was gratifying to collaborate with and serve a great scientist who loved engineering, who served humanity, and who persisted spreading his spectrum-modulation, and… his peanut butter. Such are the minds of engineers.

(The End)

(If you really must know what ‘frequency-hopping spread-spectrum-modulation’ is, just ask Ferril Losee [1], or look it up on the internet.)

References:
[1] Losee, Ferril, RF Systems, Components, and Circuits Handbook, 1997 Artech House, Inc
[2] Morrill, Jenn, Ferril A. Losee, A Man of Honor, Edited by Jenn Morrill

Engineering is about serving People

“Engineers solve problems in complex real-world situations; they design new systems and strategies to adapt to changing times; they make structures and products more user-friendly, responding to the real needs of communities and people. At its heart, engineering is about serving people.” (David E. Goldberg and Mark Somerville, A Whole New Engineer, The Coming Revolution in Engineering Education, ThreeJoy Associates, Inc. Douglas, Michigan, 2014)

A Real Engineering Story – Engineering Wheels for Mars

Mission name: Mars Science Laboratory

Vehicle name: Curiosity rover

Problem: Wheels wearing out on sharp rocks of Mars

Solving this problem: Watch this lecture at Jet Propulsion Laboratory (JPL) given recently.

http://www.ustream.tv/nasajpl

Mars Mission Case Study from

May I recommend this interesting Aerospace Engineering case study presented partly in story form. It comes from the National Center for Case Study Teaching in Science, University of Buffalo, and the National Science Foundation.

“The Mars Climate Orbiter was deployed by NASA as part of a mission to study weather and climate on Mars.  It was supposed to enter orbit at an altitude of 140.5–150 km (460,000-500,000 ft) above Mars, but due to an error, the space…”

http://sciencecases.lib.buffalo.edu/cs/collection/detail.asp?case_id=418&id=418

 

 

Engineering Student Projects Links

The ‘Engineering Stories’ blog gets a lot of hits from people searching for Engineering Student Projects. I expect these are students wondering what to do for their student project. Well, to help them out, I’ve started a blog page to capture all the university and college senior project summaries I can find. Go to my home page and click on the “Mechanical Engineering Student Projects” page. Help me build the list if you know of more sites.

While at Engineering Stories, note the new format. If you haven’t read, “Get A Grip,” yet, please download it for free and enjoy it.

Mechanical Engineering Student Projects

Announcement – Engineering Stories in Paperback

Engineering Stories is now in paperback! Seven stories illustrated, formatted, and published in a handsome professionally bound book for some ernest reading. Listen to these endorsements by engineering academic professionals on the back cover.

“A fabulous collection of realistic engineering adventure stories! Ken Hardman connects the design and development process we teach in engineering school to the exciting challenges faced every day in real engineering practice.” Steven D. Eppinger, Professor of Engineering Systems at MIT, co-author Product Design and Development

“Ken Hardman’s stories about engineering are a joy to read. In them he captures the excitement of engineers developing solutions to realistic technical problems. By describing the engineering process through fictional characters in fictional settings, Hardman invites the reader to participate in the adventure of invention and discovery.” Henry Petroski, A.S. Vesic Professor of Civil Engineering, Duke University, and author of, among other books, To Engineer Is Human, To Forgive Design, and An Engineer’s Alphabet.

Engineering Stories are for:

  • The high school student who wonders if engineering is for them,
  • The K12 career counselor or teacher who needs more depth in explaining engineering to students,
  • The parent or grandparent or friend who would like to encourage a youth toward a satisfying, useful, and profitable career,
  • The college engineering freshman who is deciding what major to declare,
  • The older college engineering student who cries for ways to apply their engineering academics, anxious to experience real engineering, real companies, and real teams, and
  • The young engineering professional who wants to live the engineering experiences of there peers, gaining encouragement and insight to move forward in their career.

“Ken Hardman has done a masterful job—even spellbinding—in depicting what real Science, Technology, Engineering, and Math (STEM) projects, and the people and circumstances involved in them, are actually like in the real world! Having myself been involved for more than fifty years in the types of projects that Ken writes about—and the use of case studies in engineering education for more than forty years—I can say without equivocation that Ken’s case writing ability is superb! Page after page challenges you to use your creative juices, and you feel as if you are right in the lab, conference room—or wherever—huddled around some hardware as part of a team effort working through the technical, as well as the people issues, to get the problem solved! Each engineering story has been carefully chosen to share important skills, topics and essential abilities of great engineers and scientists at work! These stories will help you experience—just about as close to first hand as possible—the joys of creation and problem solving which result from learning and applying skills in a world where all of us have the opportunity to make things better.” Robert H. Todd, PhD, P.E., Fellow of The American Society of Engineering Education, Professor Emeritus Department of Mechanical Engineering Brigham Young University

Engineering Stories has boiled down the relationship between an engineering education and real-world engineering situations to its core! I know of no better introduction for engineering students preparing to work in industry. Anybody seriously considering a career in engineering will benefit from and enjoy reading Engineering Stories!” Braden Hancock, Mechanical Engineering Student at Brigham Young University, ASME 2012 Kenneth Andrew Roe Scholarship recipient

(If you are not inclined to acquire the paperback, continue to enjoy the same individual stories that are available for free at the authors website. Whether online or paperback, discover the career of engineering through Engineering Stories.)

http://www.amazon.com/Engineering-Stories-Realistic-Fiction-STEM/dp/1483949869