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3 - Mass Distribution

Published online by Cambridge University Press:  21 March 2022

Joaquim A. Batlle
Affiliation:
Universitat Politècnica de Catalunya, Barcelona
Ana Barjau Condomines
Affiliation:
Universitat Politècnica de Catalunya, Barcelona
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Summary

Introduction of all concepts related to the mass distribution of the system (center of mass and inertia tensor about a point) needed to apply the vector theorems that solve the dynamics of a rigid body. A few theorems that help calculate those elements (Pappus–Guldon theorems, Steiner's theorem) are presented. The qualitative assessment of the inertia tensor from the mass distribution geometry is discussed and illustrated through several examples. Principal directions of inertia (or of rotation) are introduced, and symmetrical and spherical rotors are defined. The inertia ellipsoid (a tool to visualize the inertia tensor) is presented in the last section.

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Chapter
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Rigid Body Dynamics , pp. 151 - 201
Publisher: Cambridge University Press
Print publication year: 2022

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  • Mass Distribution
  • Joaquim A. Batlle, Universitat Politècnica de Catalunya, Barcelona, Ana Barjau Condomines, Universitat Politècnica de Catalunya, Barcelona
  • Book: Rigid Body Dynamics
  • Online publication: 21 March 2022
  • Chapter DOI: https://doi.org/10.1017/9781108896191.004
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  • Mass Distribution
  • Joaquim A. Batlle, Universitat Politècnica de Catalunya, Barcelona, Ana Barjau Condomines, Universitat Politècnica de Catalunya, Barcelona
  • Book: Rigid Body Dynamics
  • Online publication: 21 March 2022
  • Chapter DOI: https://doi.org/10.1017/9781108896191.004
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Mass Distribution
  • Joaquim A. Batlle, Universitat Politècnica de Catalunya, Barcelona, Ana Barjau Condomines, Universitat Politècnica de Catalunya, Barcelona
  • Book: Rigid Body Dynamics
  • Online publication: 21 March 2022
  • Chapter DOI: https://doi.org/10.1017/9781108896191.004
Available formats
×