Learning Forum

[saravanakumar]

Dear all,

I want to do shock load analysis on the shaft with 3 hydrodynamic bearings.

I have performed modal analysis on the shaft and found the natural frequency and linked with transient structural analysis.

Inputs given to me for shock analysis is shock pulse wave of 30g in 15 milliseconds and it has to be given as full sine wave.

Can any body give me suggestion how to convert this 30g in 15 ms into a full sine wave?

 

Regards,

saravana

[Sean Harvey]

 

 

Hello Saravana,

I am not certain if I am answering your question, but in this video we created, we model a 1/2 sine wave impulsive loading.  The same methodology can be used to create a full.  Please check it out and let us know if this addresses your question!

Please see the lesson 2 video 

Predicting Transient Vibrations in Ansys Mechanical - Lesson 2 - ANSYS Innovation Courses

Regards,
Sean

 

 

[saravanakumar]

Hello sean,

thanks for the reply,

i have already gone through the same lecture, and tried to do it by creating half sine curve and copied the results in negative direction and obtained the plot, but the full sine curve looks like below snap there is some kind of discontinuity in sine curve. 

 

that's y i am trying to explore some other methods to do it. in terms of trigonometirc functions etc.,

Regards,

saravana