Fatigue strength of axle springs
Relevant influences
- Mechanical loading as a result of
- Spring compression
- Axle kinematics
- Corrosive environmental conditions
- Damage to surface and coating caused by
- Spring seat abrasion
- Stone impact
Experimental verification
- Pre-damage caused by stone impact
- Corrosion in alternating cycle tests developed by the German Association of the Automotive Industry (Verband der Automobilindustrie, VDA)
- Optional tests with simulated compression kinematics
- Tests with original spring seats in installation position
- Vibration fatigue tests with fixed or variable amplitudes
- Abrasive wear simulation
- Corrosion simulation with intermittent salt-water spray exposure
- Statistical validation with systematic testing and a sufficient number of test items