Hey every one
I have s simple steel frame structure the analysis of this structure give 15 natural frequency results
2.067609179
5.763759994
13.08651498
13.39066267
22.05520949
31.60227434
35.89970274
39.23440003
50.30038346
61.72612467
73.51958827
88.75778292
112.1136364
119.6581416...
can some one help me to extend the matlab script in below (which give the solution of dynamic system (2x2)) to resolve system (33x33)
mt=[0 0 30 0;0,0,0,50;30,0,0,0;0,50,0,80];
kt=[-40,0,0,0;0,-50,0,0;0,0,35000,-25000;0,0,-25000, 4000];
Z=inv(mt)*kt;
[V,D]=eig(Z);
disp('Eigenvalues')...
I m a new user of matlab and i have a question about how to obtain natural frequency and mode shape corresponding in the general case of system mass,sitiffness and viscous dumpinig (MDOF)
Example:
m=[40000 4000 0;0 30000 0;50000 0 20000];
c=[330 0 0;0 -8000 8000;0 -8000 8000];
k=[30000...
can somme one help me to resolve using matlab a dynamic system of diferentiel equation representing the dynamic behavior of frame structure(the matrix system is obtained by using finite element method)
thanks
I'm trying to develop a computer program to analysis frame including p-delta effect using secant stiffness method but i have problems to understand the procedure mentioned in the attached file
1.Set up the member stiffness matrices for all members and assemble them in structure stiffness matrix...
