Misplaced Pages

Damping matrix

Article snapshot taken from[REDACTED] with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources.
Find sources: "Damping matrix" – news · newspapers · books · scholar · JSTOR (February 2011)

In applied mathematics, a damping matrix is a matrix corresponding to any of certain systems of linear ordinary differential equations. A damping matrix is defined as follows. If the system has n degrees of freedom un and is under application of m damping forces. Each force can be expressed as follows:

f D i = c i 1 u 1 ˙ + c i 2 u 2 ˙ + + c i n u n ˙ = j = 1 n c i , j u j ˙ {\displaystyle f_{Di}=c_{i1}{\dot {u_{1}}}+c_{i2}{\dot {u_{2}}}+\cdots +c_{in}{\dot {u_{n}}}=\sum _{j=1}^{n}c_{i,j}{\dot {u_{j}}}}

It yields in matrix form;

F D = C U ˙ {\displaystyle F_{D}=C{\dot {U}}}

where C is the damping matrix composed by the damping coefficients:

C = ( c i , j ) 1 i n , 1 j m {\displaystyle C=(c_{i,j})_{1\leq i\leq n,1\leq j\leq m}}

References


Stub icon

This engineering-related article is a stub. You can help Misplaced Pages by expanding it.

Stub icon

This classical mechanics–related article is a stub. You can help Misplaced Pages by expanding it.

Stub icon

This applied mathematics–related article is a stub. You can help Misplaced Pages by expanding it.

Categories:
Damping matrix Add topic