Fatigue strength of valve springs
![[Translate to English:] Schwingfestigkeit von Ventilfedern](/fileadmin/media/Geschaeftsfelder/Automotive/Bilder/Produkte/Schwingfestigkeit-Ventilfedern_1.jpg)
![[Translate to English:] Schwingfestigkeit von Ventilfedern](/fileadmin/_processed_/2/0/csm_Schwingfestigkeit-Ventilfedern_2_69c87bfe16.jpg)
Relevant influences
- Mechanical loading as a result of compression
- Very high number of load cycles
- Increased temperature
- Dynamic settling Experimental verification
- Tests with maximum stress almost to block length of the spring
- Vibration fatigue tests with fixed amplitudes
- Simultaneous testing of a high number of valve springs
- Simulation of increased temperature
- Statistical validation with systematic testing and a sufficient number of test items
- Determination of dynamic settling
Benefits of IABG valve spring test benches
- Energy efficiency by utilising the principle of resonance in tests
- Reliability and low maintenance
- Exclusion of exogenic forces and vibrations
- Simultaneous testing of a large number of springs
- Fatigue tests at various temperatures
- Software-based testing, documentation and evaluation
- Recognised by all leading car manufacturers
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