1:24
Aircraft landing gear with bearing friction
How much does friction change the cylinder force during deployment and retraction? ASOM takes joint friction into account and compares the cylinder force with and without friction.
Example · Commercial vehicles · ASOM
Kinematics of a truck lift gate
Two hydraulic cylinders move the lift gate of a truck through several partial movements all the way down to the road. ASOM plays back the entire motion sequence in one model and calculates the bearing forces with friction.
3:03
The task
Several partial movements, one complete sequence
The lift gate is designed as a linkage with two degrees of freedom, driven by two hydraulic cylinders. Its motion is made up of partial movements: opening, transition to the horizontal, raising and lowering the platform, and lowering the loading edge onto the road. For every position, the required cylinder lengths and the forces in the bearings matter.
What ASOM shows here
- The advanced drive control combines the partial movements into one complete motion sequence; two hydraulic cylinders move the linkage with two degrees of freedom.
- ASOM calculates the bearing forces including friction and displays them graphically.
- Change the mechanism, and the cylinder lengths and bearing forces adapt immediately.
Your benefits
Motion sequence and bearing forces in one model
You see early on which cylinder lengths are required and which forces the bearings absorb – and how every change affects them.
A sequence instead of single positions
All partial movements run in one model instead of each position being examined individually. More on motion sequences
Choose the right cylinders and bearings
You know the cylinder lengths and bearing forces before cylinders and bearings are selected. More on force calculation
Compare variants directly
You check a modified mechanism in the same model, without starting over.
More examples
All example videos
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