Testing Steering

Steering rod01

Testing of Steering Linkage

This testing system is used to determine the friction forces and moments, including the stick slip effect, inside and outside the test axis.

ZwickRoell Solution: Multi-axis testing machine with ZwickRoell Z020

  • Horizontal test load Fmax 20 kN
  • Three separately controlled drive axes (axial, lateral force, and torsion)
  • Three manually adjustable axes, allowing the widest possible range of steering linkage configurations
  • testXpert® software for controlling the three axes
  • CE-compliant safety housing
  • Universal perforated plate for attaching fixtures

Overview of the individual drive axes

  • Tensile/compression, axial 20 kN
  • Torsion 100 Nm
  • Tensile/compression 1 kN 

Setting options for the manual axes 

  • Lateral force axial position
  • Passive gripping in vertical position
  • Passive gripping in horizontal position 

Testing of Steering Shafts

To facilitate automated production of telescopic steering shafts for trucks, ZwickRoell testing machines can be integrated into a fully-automated assembly line. A testing machine is used to determine the maximum torsion angle in the middle of the production process, allowing process-oriented analysis of the previous assembly steps. A special angled sensor was developed for the high precision requirements of relative torsion angle measurement. A second testing machine is placed at the end of the production line to determine the displacement force of the steering spindle.

Testing of Steering Columns

In order to reliably test steering column height adjustment, the testing system must simulate the height adjustment process realistically. An electromechanical testing actuator is ideal since it can be positioned flexibly in order to axially apply the desired loads to the steering column. In the example shown, height adjustment is activated in several thousand cycles in order to uncover weaknesses that would normally only become apparent over the course of the component's life.
Steering column01
Steering column02