Ali Safian

4 Questions 6 Answers 0 Followers

Questions related from Ali Safian

How to estimate bearing housing and shaft stiffness for multi-body dynamic modeling by using ANSYS workbench?

I am writing a code in matlab for multi-body dynamic modeling of a bearing test rig that includes 2 cylindrical roller bearings, 2 housings, and a shaft. Based on equations of motion we need to...

10 March 2020 487 3 View

How to apply time-varying nodal force on large number of nodes selections (ANSYS workbench)?

Hello everyone, I want to apply time-varying nodal force on all nodes of the top surface of a beam as shown in the following picture (In ANSYS workbench). Each node selection has a corresponding...

29 July 2019 530 3 View

How to model a 3D ball bearing in ANSYS workbench by explicit dynamic?

Hello everyone, I want to simulate SKF bearing 6308 in ANSYS Workbench explicit dynamic. I created the model as below, but for simplifying the model, I used 3 balls for the bearing. The inner...

27 March 2019 960 6 View

Is it possible to use piezoelectric voltage spectrum and its FFT in machinery fault diagnosis instead of using conventional accelerometers?

I would like to know if I attach a piezoelectric disc on a bearing or gearbox (for example r=2 cm, h=0.5) without seismic mass, can I derive fault frequencies from the FFT of its voltage vs time...

09 January 2019 6,442 4 View