Recent content by Nick Goodson

Yes, that's why I was a bit perplexed

That's all the info I have. I guess the assumption is that the value for E would need to be defined using yield stress and yield strain to resolve, but is defined by a linear relationship.

Hi, I have a problem, using the 2 different equations for calculating the Modulus of Resilience, I get 2 different answers. It seems simple, but I’m a little perplexed. For the following values: Yield Stress = 1880 MPa Yield Strain = 0.0068 E = 401 GPa [U(r) = (Yield Stress x Yield Strain) /...

Thanks Lnewqban

Hello everybody, would somebody please put me on the right track to answering this question? 'Consider water undergoes a heat transfer at constant pressure of 10 MPa and changes from liquid to steam. Find the entropy of the system (sfg) as well as the heat transfer per unit mass in this...

Ok, thanks Baluncore. I need to review what's happening. Cheers Nick

Hi, I am modelling a DC motor using Simulink. Under no-load conditions, I get a max speed of 180 rads/s, but under load, the speed goes up to 290 rad/s, although takes longer to reach max speed, acceleration decreases. I have a mechanical background so don't know much about motors, but would...

Thanks Evo, nice to meet you.

Hi, I just wanted to introduce myself, I'm Nick from Brighton,UK. I am a lecturer at a further education college and am studying for an MSc in Auto Engineering. Cheers Nick