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Dynamic Balancing in Mechanical Design: Theory and Practice

This lecture delves into the concepts of static and dynamic balancing in mechanical design, focusing on balancing rotating parts like shafts and links effectively using mass adjustments to achieve optimal performance.

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Dynamic Balancing in Mechanical Design: Theory and Practice

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  1. 22.322 Mechanical Design II Spring 2013

  2. HW #4 Problem 11.3a

  3. HW #4 Problem 11.12

  4. Lecture 19 • In the previous lecture, we discussed static and dynamic balancing of rotating parts • Main difference between static and dynamic balancing?? • Specifically, we looked at a few examples of shafts with disks • We were asked to balance the shaft by adding masses to one or more of the disks • Let’s look at similar, but different examples…

  5. Lecture 19 • Let’s consider the unbalanced link shown below. • We would like to balance the ink with a single mass, mb. • In order to do this, we need to essentially make the center of mass of m1, m2, and mb be located at x=0, y=0.

  6. Lecture 19

  7. Lecture 19

  8. Lecture 19 Example

  9. Lecture 19 • Let’s consider the two-plane dynamic balancing problem

  10. Lecture 19

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  12. Lecture 19

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