Podcast #3 - Structural Vs. Mechanical Engineer

Structural Engineering Podcast Structural Engineering Podcast Nov 24, 2018

Audio Brief

Show transcript
This episode introduces mechanical engineer David to a structural engineering audience, exploring the practical differences in their fields and common ground in their professional journeys. This conversation offers four key takeaways. First, engineering disciplines utilize distinct workflows; mechanical engineering relies on iterative prototyping, while structural focuses on direct-to-production methods. Second, practical experience and on-the-fly problem-solving often prove more critical than purely academic knowledge or advanced software simulations. Third, success in modern engineering demands strong collaboration, communication, and humility, debunking the "lone engineer" stereotype. Finally, leveraging existing designs and expert knowledge is highly efficient, even for seemingly simple problems. Mechanical and manufacturing engineering heavily rely on extensive iterative prototyping. This crucial phase allows testing fit, function, and discovering errors before mass production, preventing costly mistakes. Structural engineering designs are typically based on established standards, proceeding directly to fabrication with less physical prototyping. This workflow difference impacts budget allocation and project timelines. Real-world engineering in both disciplines requires adaptability and practical, hands-on solutions. The discussion highlighted that whether patching a boat hull or solving a construction erection error, field experience and pragmatic fixes are often more valuable than advanced software simulations. This underscores the importance of applied knowledge. Despite engineering stereotypes, professional success deeply depends on communication, humility, and knowing who to ask for help. Collaborating effectively with machinists, contractors, and other experts is far more efficient than attempting to solve every complex problem in isolation. These vital soft skills are crucial for navigating project complexities and achieving optimal outcomes. Even what appear to be "simple" designs can harbor deceptive complexities. The episode emphasizes that utilizing existing templates, proven designs, and the collective expertise of others is almost always more efficient and reliable than starting every project from scratch. This approach significantly mitigates risks and optimizes resource allocation across projects. Ultimately, the episode underscores that despite disciplinary differences, a collaborative, adaptable, and practical mindset drives success in any engineering endeavor, highlighting universal principles of effective problem-solving.

Episode Overview

  • This episode introduces the podcast's first guest, mechanical engineer David, to a structural engineering audience, exploring the practical differences between their fields.
  • The conversation contrasts the iterative, R&D-heavy prototyping process in manufacturing with the direct-to-production workflow common in structural engineering.
  • They discuss key technical concepts unique to their disciplines, such as "tolerance stacking" in mechanical design versus the large-scale problem-solving required in construction.
  • The group emphasizes the unexpected but crucial role of soft skills, collaboration, and humility for success in any engineering profession, debunking the "lone engineer" stereotype.

Key Concepts

  • Prototyping vs. Production: Mechanical and manufacturing engineering rely heavily on an iterative prototyping phase to test fit, function, and discover errors before mass production. In contrast, structural engineering designs are typically based on established standards and go directly to fabrication with less physical prototyping.
  • Tolerance Stacking: In mechanical design, minor, acceptable variations in individual components can accumulate across an assembly, causing significant fitment or functional issues—a level of micro-precision less critical in large-scale construction.
  • Differing Budget & Deadline Pressures: Structural engineering projects often have a fixed fee, making efficiency paramount. Manufacturing budgets can be more flexible during R&D but are often driven by external factors like trade shows, with costs calculated based on market value.
  • The Importance of Soft Skills: Despite engineering stereotypes, success in both fields heavily depends on communication, humility, and knowing who to ask for help. Collaborating effectively with machinists, contractors, and other experts is more efficient than trying to solve every problem alone.
  • Practical Problem-Solving: Real-world engineering in both disciplines requires on-the-fly fixes and practical solutions. Whether patching a boat hull or solving a construction erection error, hands-on experience and adaptability are essential.

Quotes

  • At 1:33 - "I started out working at a luxury yacht company." - David reveals his unique first job after college, surprising the hosts.
  • At 2:38 - "Absolutely not." - David's response when asked if he used finite element analysis at his first job, highlighting the hands-on, "old school" nature of the design process.
  • At 23:22 - "Prototyping is... really important because it really helps you find all the errors that you potentially would not find if you just send it straight into production." - David summarizes the core value of the R&D and prototyping phase in preventing costly manufacturing mistakes.
  • At 24:41 - "When you design something, there's, you know, tolerance stacking, which is something that I think a lot of engineers can improve on." - David introduces a critical mechanical engineering concept about how small dimensional variations can accumulate.
  • At 27:25 - "You said working with people... In school, did you think that was a trait that you really needed?" - Zach prompts a discussion on how the stereotype of the introverted engineer doesn't align with the collaborative reality of the profession.

Takeaways

  • Engineering disciplines have fundamentally different workflows; mechanical engineering iterates through prototyping, while structural engineering focuses on applying established principles for direct production.
  • Practical experience and hands-on problem-solving are often more critical in the field than purely academic knowledge or advanced software simulations.
  • Success in modern engineering is deeply collaborative and relies on strong communication and interpersonal skills, making teamwork a non-negotiable asset.
  • Seemingly "simple" designs can be deceptively complex, and leveraging existing templates and the expertise of others is almost always more efficient than starting from scratch.