How to estimate the correct value of "Damping Constant" for Flexible Beams in Simscape

Question

Alberto Mora 2020-5-29

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/537359-how-to-estimate-the-correct-value-of-damping-constant-for-flexible-beams-in-simscape

回答： Steve Miller 2022-11-28

Hello,

Reading the Matworks info I notice that damping matrix is defined as proportional by the Damping Constant to the stiffness matrix (the relative damping increase at high frequency).

My question is how to choose the proper value of Damping Constant for different materials.

Thank you and best regards

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Steve Miller 2022-11-28

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/537359-how-to-estimate-the-correct-value-of-damping-constant-for-flexible-beams-in-simscape#answer_1114418

The Damping Matrix parameterization method for the Reduced Order Flexible Solid lets you specify individual damping values for the interface nodes and deformation modes. This matrix can be computed using the mass and stiffness matrices that you obtain from finite element method software. To scale these for specific materials, you can look up tables for the damping ratio by material and use that to calculate/scale the damping matrix.

--Steve