Vibration analysis in Solidworks

Vibration analysis of components subjected to excessive vibrations is very important. This analysis is done to check whether these vibrations may cause failure over time.

For this particular demonstration, we’ll be going through how to set up a vibration study of a connecting rod. We know that in an engine, there are a lot of vibrations generated due to the rotation of the crankshaft.

Begin by creating your model inside SOLIDWORKS.


Any connecting rod will do, or create one using the sketch below on the front plane.


Using the extrude command, create the solid feature.


Next, adjust the thickness of the ring as shown. The extrude command does this with ease. Next, add the feature on where the screws are inserted. Use the mirror command duplicate the results from the original feature.


Once this is done, add slots on the rod then chamfer all round.



Above is that the model would look like.

Go on to create a new linear dynamic analysis. Remember to first enable the SOLIDWORKS simulation add-in in the add-ins folder.

Click on the Simulation tab and select New Study. Next, select the linear dynamic analysis from the drop down menu.

Once the study feature manager tree is pulled up, we will notice that we are first required to define the material for the part. Titanium alloy is used in this example.

Define any material by moving to the materials tab and clicking apply on the material of your choosing.


Next, you define the loads and fixtures.


You can then define the loads. In this example, an axial load is exerted onto the piston ring slot. This is due to the up and down movement of the piston in the cylinder. Next, mesh the model and then run the study.




From the stress plot, you can see how the model deforms with time. From the results tab, you can also create the frequency mode plot


Email: P| 03 86770871