2:15
Friction on an inclined plane
A block on an inclined plane: the holding force when raising and lowering, with and without friction. Using constraints, you quickly check many variants.
Example · Basics · ASOMv10
Joint friction in revolute joints
ASOMv10 calculates friction directly in the revolute joints of the model – so you see how much force it costs.
4:18
The task
How much force does friction cost?
Using a four-bar linkage, the aim is to show how much the friction in the revolute joints changes the required manual force and the forces in the joints.
What ASOM shows here
- Pin diameter and friction coefficient for each revolute joint in a dedicated joint friction element.
- Manual force, joint forces and friction torque with and without friction side by side – in the diagram and as arrows on the model.
- Small jumps in the curves show where the direction of rotation between two mating parts reverses; easy to see with the coupler as the reference element.
Your benefits
Know friction losses early
You factor in friction as early as conceptual design instead of correcting for it later.
Fewer surprises
You know what friction costs before the first prototype. More on force calculation
Drives with headroom
You see how much force friction costs and size drives and springs accordingly.
Size pins and bearings
The joint forces with friction are the basis for sizing pins and bearings. More on forces in the model
More examples
All example videos
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How much force is needed at the handle or directly at the door? The inner workings of the door closer are captured in a programmable torque, so the model stays lean.
Have a similar task?
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