Posts by tracylam 



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Upper mode of a beam attaching a end mass 
Thanks for the replies.As I would like to calculate the upper mod... 

Upper mode of a beam attaching a end mass 
HelloConsidering a beam attaching a end mass, I found that it has... 

"Splitting" of natural frequency 
Dear John,In this way, each peak respresents one degree of freedo... 

"Splitting" of natural frequency 
HiI am studying on a 3 DOF system and I can calculate its t... 

Force Measurement 
John,The story seems terrible. I will avoid to si... 

Force Measurement 
Yes, the moving mass is very light (around 10g).I agree with you ... 

Force Measurement 
Replying to John's message: As stated in the user manual of my sh... 

Force Measurement 
May I know how to measure the force generated by a shaker? My pro... 

A problem on damping 
Thanks for the replies.Muff's descrlption on the damping problem ... 

Resonance 
Thanks a lot.By the way, I would like to know that: is it possibl... 

Resonance 
John, I would like to clarify about the parameters. Doe... 

A problem on damping 
If one end of an elastic plastic ruler is clamped at a fixture an... 

Resonance 
John,The input acceleration in my experiment is about 1G.In order... 

Resonance 
I have just borrowed Roark's book and it is fine that&n... 

Resonance 
Dave,The dimension of the beam is 2(in) x 1(in) x 0.03 (in) [leng... 

Young's Modulus of a laminated plate 
Thanks for your help. 

Resonance 
Dave: I presume I excitated the clampedfree beam at its resonanc... 

Resonance 
Forced resonance of a mechanical structure can lead to disaster s... 

Young's Modulus of a laminated plate 
Thanks a lot. 

Young's Modulus of a laminated plate 
John,Referring to the cross section of the laminated plate, I can... 

Young's Modulus of a laminated plate 
Thanks for the replies.Because of the laminated plate is quite ex... 

Young's Modulus of a laminated plate 
I am facing a problem on calculating the resultant Young's Modulu... 

Problem on the natural frequency of a clamped beam 
It is grateful to receive your helpful reply. By the way, can I m... 

Problem on the natural frequency of a clamped beam 
Thanks Dr.D.May I explain about my setup as follows? I have a sh... 

Problem on the natural frequency of a clamped beam 
Thanks Dave.I am doing modal analysis of the beam structure... 

Problem on the natural frequency of a clamped beam 
A beam is central clamped on a vibrating shaker. Is it correct to... 

