Excessive inertial forces when starting a constant rotary speed model in Dynamic/Explicit
Excessive inertial forces when starting a constant rotary speed model in Dynamic/Explicit
(OP)
Hello All,
I'm analyzing the stresses in a crankshaft. The crankshaft rotates at a constant speed. The problem is when the simulation starts the stresses go from 0 to 1800 MPa (much more than the elastic limit), due to the inertial forces (high initial acceleration to pass from 0 to 224 rad/s), and they become stable at 0.15s.
My question is how to avoid this period time of stabilization (which means hours of analysis), if I have predefined a constant rotating speed and not accelerating from 0 to 224 rad/s, if it could be possible any solution to eliminate the period of start and why it appears.
I'm analyzing the stresses in a crankshaft. The crankshaft rotates at a constant speed. The problem is when the simulation starts the stresses go from 0 to 1800 MPa (much more than the elastic limit), due to the inertial forces (high initial acceleration to pass from 0 to 224 rad/s), and they become stable at 0.15s.
My question is how to avoid this period time of stabilization (which means hours of analysis), if I have predefined a constant rotating speed and not accelerating from 0 to 224 rad/s, if it could be possible any solution to eliminate the period of start and why it appears.





RE: Excessive inertial forces when starting a constant rotary speed model in Dynamic/Explicit