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22.322 Mechanical Design II. Spring 2013. HW #4. Problem 11.3a. HW #4. Problem 11.12. Lecture 19. In the previous lecture, we discussed static and dynamic balancing of rotating parts Main difference between static and dynamic balancing??

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Presentation Transcript
slide2
HW #4

Problem 11.3a

slide3
HW #4

Problem 11.12

lecture 19
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…
lecture 191
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.
lecture 194
Lecture 19

Example

lecture 195
Lecture 19
  • Let’s consider the two-plane dynamic balancing problem
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