solving coupled differential system
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Hello. I am trying to solve two coupled differential equation as below:
m1x"+m2ry"=-k1(2x1-x2-x0)
m2x"+Ay"=-k2x1+Ky-f
Note: m1,m2,k1,k2,x2,x0,A,k2,K,f are known
thanks alot
댓글 수: 1
John D'Errico
2020년 4월 25일
편집: John D'Errico
2020년 4월 25일
Why was it necessaryu to ask this question twice? I've closed the other one you asked.
답변 (1개)
Radu Trimbitas
2020년 4월 25일
Dear Saman,
If set x=u(1), x'=u(2), y=u(3), y'=u(4) and
M=[1,0,0,0; 0, m1,0,m2; 0,0,1,0; 0, m2,0,A], then the system becomes
[u(2); -k1*(2*x1-x2-x0); u(4);-k2*x1+K*u(3)-f];
M could be seen as a mass matrix and can be introduced using option Mass in odeset function, see the attachment.
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