calculation of viscous damping

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sumei

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How do I calculate my Bm(viscous damping of DC motor); Bc(viscous damping of cart). And how to calculate r(radius of DC motor shaft)?
Can anyone who knows the answer plaese reply to me as soon as possible?? i really appreciate your help...thank you very much.!!!!! :>
 

The following references show how to calculate/determine parameters of DC motor:

Identification of DC Motor Parameters: Kb, Kt, R, Jo, L, D, and Kf
**broken link removed**
Terminal Resistance, R
Back emf constant, Kb
Torque constant, Kt
Mechanical and Electrical Time Constants (tm and te)
Friction terms Tf and D (viscous)


Lab Session 4 - Introduction to the DC Motor
**broken link removed**


DC Motor Parameter Identification and Optimal Control System Design
http://www.mech.uwa.edu.au/~petitj0... Identification and Control System Design.htm
 
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