The usefulness of statics VS dynamics knowledge in mechatronics

Click For Summary

Discussion Overview

The discussion revolves around the perceived importance of statics versus dynamics knowledge in the field of mechatronics, particularly in the context of a technical mechanics test that emphasizes statics. Participants explore the relevance of these concepts within the broader scope of their engineering education.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant notes that their technical mechanics test consists of 80% statics questions, prompting curiosity about the emphasis on statics over dynamics in mechatronics.
  • Another participant suggests that understanding statics is essential for analyzing both static and dynamic mechanical systems, indicating that dynamic behavior can sometimes be ignored in certain analyses.
  • A later reply discusses the possibility of reducing dynamic situations to quasi-static ones through appropriate choices of coordinate systems, providing examples such as analyzing a rotating disk from an observer's viewpoint.
  • It is mentioned that in fluid flow, achieving a steady state allows for ignoring dynamics when calculating energy transfer, highlighting a strategy engineers use to simplify complex problems.

Areas of Agreement / Disagreement

Participants express varying views on the importance of statics versus dynamics, with some supporting the idea that statics is foundational for understanding dynamic systems, while others explore the nuances of applying these concepts in practical scenarios. No consensus is reached on the overall significance of each area.

Contextual Notes

The discussion does not resolve the assumptions regarding the relative importance of statics and dynamics, nor does it clarify the specific role of technical mechanics within the entire mechatronics degree program.

Femme_physics
Gold Member
Messages
2,548
Reaction score
1
In my practical engineer degree for mechatronics, our technical mechanics test consists of 80% statics questions and 20% dynamic questions. I'm curious, why does statics appear to be more important than dynamic in this engineering discipline?
 
Engineering news on Phys.org
How does "technical mechanics" fit into the whole degree course?

Statics is more important than dynamics in the sense that you need an understanding of statics to analyse either a static or a dynamic mechanical system. Even if it has moving parts, sometimes you can ignore dynamic behavior or just do a quick check to see that it's safe to ignore.

I'm sure you'll have courses devoted to control systems which may be more the focus of mechatronics than the vibration modes of structures.
 
Sorry for the late coming, but thanks for the reply :wink:
 
You know that a 3D analysis can often be reduced to a 2D one by suitable choice of viewpoint.

In similar fashion we can often reduce a dynamic situation to a quasi-static one by suitable choice of coordinate system (viewpoint).

Some examples:

An analysis of a rotating disk made from the point of view of an observer sitting on the disk, and therefore going round with it, is quasi- static in that we can ignore the rotational motion of the disk adding a central 'force' if necessary.

The support reaction for a drive shaft is going to be the same whatever speed the shaft is doing, or even if the shaft is actually turning at all.

In fluid flow if a 'steady state' is achieved we can ignore the dynamics of the flow for the purposes of calculating energy transfer.

Engineers are tricky individuals - they are always seeking to reduce the complexity of the maths by any trick they can invent.

go well
 

Similar threads

Replies
6
Views
5K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 31 ·
2
Replies
31
Views
5K
  • · Replies 11 ·
Replies
11
Views
2K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 2 ·
Replies
2
Views
9K
  • · Replies 4 ·
Replies
4
Views
2K
Replies
13
Views
4K
  • · Replies 45 ·
2
Replies
45
Views
7K
  • · Replies 22 ·
Replies
22
Views
6K