03111961
Aerospace
- May 29, 2009
- 2
Who can help? Probably I do not understand exactly how spectrum analysis works. The problem I took is very simple but the results I got are strange.
I took one mass system - link with point mass at one end. The other end of the link is fixed. An axial force
100*SIN(Omega*T) (T-time)is applied to the mass.
Omega = 2*3.141*10 (10 Hz)
The parameters of the link are - length L=3, cross section A = 1E-3, Young's modulus of the material
E = 3E6. The mass is 0.1
The first part (modal analysis) is being done correctly. The frequency of the system is 15.91 Hz
But after I make all other parts of spectrum analysis I got the results of STATIC problem - link, loaded by axial STATIC force of 100.
I do not understand what mistake and where I make.
Thanks in advance who will help
I took one mass system - link with point mass at one end. The other end of the link is fixed. An axial force
100*SIN(Omega*T) (T-time)is applied to the mass.
Omega = 2*3.141*10 (10 Hz)
The parameters of the link are - length L=3, cross section A = 1E-3, Young's modulus of the material
E = 3E6. The mass is 0.1
The first part (modal analysis) is being done correctly. The frequency of the system is 15.91 Hz
But after I make all other parts of spectrum analysis I got the results of STATIC problem - link, loaded by axial STATIC force of 100.
I do not understand what mistake and where I make.
Thanks in advance who will help