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Results tagged with mechanical-engineering
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user 920
Questions within the problem domain of mechanical engineering. Mechanical Engineering can be a broad field; consider choosing more specific tags if they apply.
11
votes
1
answer
411
views
What is the significance of a diagonal input in a control diagram?
I have seen several block diagrams with diagonal inputs, drawn with an arrow through the block.
and others like that (via Google image search)
What is difference between this and a typical signal i …
- 405
10
votes
1
answer
2k
views
What is the difference between direct and indirect learning control?
I found the following comments on direct and indirect control in "Survey on iterative learning control, repetitive control and run-to-run control." by Wang, Gao, and Doyle:
There are two applicati …
- 405
5
votes
What causes friction in magnetic bearings?
There are two types of losses in magnetic bearings, windage and electromagnetic losses. Windage or aerodynamic loss is the dissipation of rotational energy due to the viscosity of air or other gases t …
- 405