Recent content by kev.thomson96

We can find the damping ratio from the log decrement. Shaker and beam have the same ground, therefore they are in parallel in terms of stiffness, so the equivalent stiffness formula is ##k_equivalent = k_beam + k_shaker## To find k_beam, we need to equate it to ##\frac F x##, and equate...

Apologies for not using that. The second moment of area of the beam, which is a rectangular prism.

A cantilever beam at low frequency behaves like an underdamped 1 DOF mass/spring/damper system. We are trying to find the roots of the Characteristic equation which are lambda1,2 = -dampingRatio x wnatural /sqrt(1-dampingRatio) Relevant formulas and given values: damping ratio = c/2sqrt(m/k)...

Yes. I don't get why we have what we have in the parenthesis - I thought for 0<t<2T we'd have I(2T-0)/C but we have I(t-T)/C instead. Same goes for the rest.

Homework Statement Homework Equations 3. The Attempt at a Solution [/B] I know dV=1/C∫idt and that we integrate the voltage from V to V0. What I don't get are the boundary conditions for t - How do we get what we get in the parenthesis? My closest assumption is that the t/T values refer to the...

Open-circuit Vs1/Vs2=R1/R2 since there's no current flowing? I'm usually fine applying the potential divider to simple circuits, but the two power supplies are confusing me.

So what you're saying is Vs1-Vs2=R1/R2 and Voc=Vs2R1/R2?

Homework Statement Homework Equations ; 3. The Attempt at a Solution [/B] Here is my thought process and assumptions. Without Vs1 and R2, the open-circuit current would be Vs2/R2, but I know Vs1 and R1 must be contributing in some way. I'm thinking of summing the Voltage sources and using...

Homework Statement we have this matrix 6 - 1 0 -1 -1 -1 0 -1 1 We need to find it's eigenvalues and eigenvectors Homework Equations The Attempt at a Solution[/B] I wrote the characteristic equation - det(A- λxunit matrix) to find the roots and got (-λ^3)+8(λ^2)+λ-6 instead of...

I think I'm kind of geared more towards Mechanical Engineering Technology because of it's practicality, but I also want to make my own designs, which isn't really taught in MET, where you get to do other people's designs. But for some reason I don't want to do just ME or MET. So I've 2...

Good day to everyone reading this, I thought I would know what degree I would want to pursue after high school, however I have not decided what I should do in the future. My interest in science arose a little over an year ago, especially in physics, after I tried amateur karting. Before, I...

I don't think so, but I'd like you to elaborate if you can solve it with log.

I was wondering how that could be done. I tried 0,2 ---> 1/5, then 167 ^(1/5) , which should lead to 5√167 (fifth root of 167) , but I can't seem to move on from there