Week 7-Long Piston With Cam

Objective: To perform a transient analysis on a piston and cam mechanism model for the following three cases of contacts:

1. Case 1: Frictionless Contact.
2. Case 2: Frictional Contact `mu=0.1`.
3. Case 3: Frictional Contact `mu=0.2`.

Procedure:

1. Contacts:
2. Joints:
3. Meshing:
4. Boundary Conditions:

Analysis:

1. Case 1:
   1. Directional Deformation:
   2. Equivalent Elastic Strain:
   3. Equivalent Stress:
2. Case 2:
   1. Directional Deformation:
   2. Equivalent Elastic Strain:
   3. Equivalent Stress:
3. Case 3:
   1. Directional Deformation:
   2. Equivalent Elastic Strain:
   3. Equivalent Stress:

Result:

Cases	Frictional Coefficient	Directional Deformation (mm)		Equivalent Elastic Strain (mm/mm)		Equivalent Stress (MPa)
		Maximum	Minimum	Maximum	Minimum	Maximum	Minimum
Case 1	0	10.629	-2.0033×10^-9	0.0050324	1.0071×10^-9	996.63	4.4375×10^-5
Case 2	0.1	10.677	-3.0173×10^-10	0.0056652	1.033×10^-9	1121.8	4.4464×10^-5
Case 3	0.2	10.761	-2.558×10^-13	0.0067613	1.015×10^-9	1337.8	4.4466×10^-5

Conclusion: As the frictional coefficient increases, the directional deformation, the equivalent elastic strain and the equivalent stress also increase. Thus, the directional deformation, the equivalent elastic strain and the equivalent stress are maximum for case 3, lesser for case 2 and least for case 1.