Recent content by Oscar6330

From Normal vibrating beam/ cantilever, I mean a beam which is vibrating at a freq other than its mode freg. For e.g if first mode a beam is at 100 hz and its vibrating at 40Hz.

any help please!

I developed a COMSOL model and calculated the first 6 modes of vibration of cantilever beam. Later out of curiosity, I looked up some videos on youtube to see actual cantilever. I found this video which shows the first mode. How do you know that its first mode of vibration? More...

Hi! I started to look into freq response analysis of a cantilever beam using COMSOL. Luckily COMSOL already has an example model "Model Library>> Structural mechanics module>>Dynamics and Vibrations>>rotating blade". While not changing anything in the model and with Omega=0 and Cloris =0, I get...

thanks for your kind reply. So F1= k^2*sqrt(E*I/(mpl*L^4))/(2*pi) w1=k^2*sqrt(E*I/(mpl*L^4))

Thanks. So the first equation gives freq in Hz while other one gives answer in radians per second?

I found two different versions of equations to find natural frequency of a cantilever beam. I am not sure which one is right. I would appreciate if someone could make things a bit clear here F1= k^2*sqrt(E*I/(mpl*L^4))/(2*pi) where k=1.875 for first natural freq and I= b*d^3/12; OR is...

The paper is titled "Transfer Function Analysis of the Micro Cantilever Used in Atomic Force Microscopy". I cannot upload it here because of IEEE copyright violation (I guess). The paper discusses an AFM Cantilever. But what I need is a frequency response analysis of a small cantilever beam...

As part of some research work, I am reading a research paper which has taken damping factor of a cantilever beam c=0.01kg/ ms. With no background in advanced physics, I cannot understand how this assumption has been made. If you could tell me what's the damping factor of a cantilever beam in...

Hey thanks for the reply. Hence this means that if I put the max theoratical Q value, I will be able to do it.

capacitor problem! (Advanced) Homework Statement I am simulating a Biological system. For ease just consider it as a parallel plate capacitor. Now the simulation software takes the value of charge Q, but not the value of V. Now as C=Q/V, can we say that the charge Q of a parallel plate...

can you eliminate "r" from the equation, since r is changing and replace it with one of the following variables electric potential V Total flux density B Total Field Intensity H Current Density J Inductance.

System: Simple Parallel plate capacitor. We are changing the distance between the plates. Dimension: Let A=w h, distance between plates r Change: The distance being changed is very fast.

Well it is very simple. I want to compute capacitance C. Now from my simulation software i can only get the following outputs, which are electric potential V Total flux density B Total Field Intensity H Current Density J Inductance. So I just want an equation, which has these variables...

To be honest, I cannot understand where its going. Can you guys please redirect to my topic