For the piston head, it only has translation motion , why use cylindrical connection instead of slider connection?? , its evident piston head is not rotating but only slides
You could use a slider connection, but it would be redundant. The rotational Degree of Freedom for the piston head is taken out by the connecting rod. Having redundant / negative Degrees of Freedom can be a problem when generating certain results in a dynamic analysis.
Great video series on mechanisms Dave! In the future I hope you have time to cover Mechanism Dynamics add-on and 3D contacts
For the piston head, it only has translation motion , why use cylindrical connection instead of slider connection?? , its evident piston head is not rotating but only slides
You could use a slider connection, but it would be redundant. The rotational Degree of Freedom for the piston head is taken out by the connecting rod. Having redundant / negative Degrees of Freedom can be a problem when generating certain results in a dynamic analysis.