Recent content by rfulky

Is there a coating that can be used on studs to keep paint and e-coat off the threads without using a stud protector?

Does anyone know of a clamp/vice that has a digital or analog reading of how much force you are appling while clamping an object? Thank you, rfulky

kenvlach Thanks for your response. If I understand you correctly if there is only elastic deformation taking effect (say in a golf ball-golf club impact) there will be no change in temperature (even slight change) between the two objects.

What are the relationships between pressure and temperature in an impact? Is there any equations that can calculate the change in temperature between two materials when they are impacted at a known force? Thank you rfulky

Do Aerogels have structual properties and if they do can you point me to somewhere that gives me more information about them? Thank you

What range of frequencies can a human sense in his or her hands?

Say you did modal testing on a baseball bat and determined the 1st 15 modes via FEA. Then you did impact testing on the same bat at several impact forces that could be produced by a human. How do you find what force excites what modes and does every force have to excite any modes? Also is...

How do you back the damping ratio out of a transient wave measured on an oscilloscope?

I am doing modal analysis on golf club heads. I am trying by preliminary sound analysis (without impacting a golf ball at 130mph) if a club has a good or a bad sound characteristic.

I mean the harmonic frequencies from the FFT that was recorded on the oscilloscope

I am trying to coorelate the acoustic frequencies taken from impact testing to modes that I got from FEA. How doest the frequencies I measured from impact testing via microphone and oscilloscope coorelate with the frequences in modal analysis. Thanks for your help!