- Business Fields
- Automotive
- Design & Realisation of Test Benches
- Springs
- Fatigue strength of axle springs
- Fatigue strength of valve springs
- Corrosion Spring Testing Machine (CSTM)
- Dry Spring Testing Machine (DSTM)
- Valve Spring Testing Machine (VSTM)
- Variable Test Rig for Resilient Components (VTRC)
- Grit Impact Simulator Machine (GISM)
- Rotating Bending Test Machines (RBTM)
- Large Spring Testing Machine (LSTM)
- Spring Coil Test Machine (SCTM)
-
Fatigue strength of axle springs
Fatigue strength of axle springs
![[Translate to English:] Schwingfestigkeit von Achsfedern](/fileadmin/_processed_/b/0/csm_Schwingfestigkeit-Achsfedern_1_204f44bf49.jpg)
![[Translate to English:] Schwingfestigkeit von Achsfedern](/fileadmin/_processed_/7/2/csm_Schwingfestigkeit-Achsfedern_2_d149c3bac9.jpg)
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
Benefits of IABG spring test benches
- Energy efficiency by utilising the principle ofresonance in tests
- Reliability and low maintenance
- Exclusion of exogenic forces and vibrations
- Testing with parallel and circular deflection
- Tests with original spring seats ininstallation position
- Dry and wet fatigue tests
- Optional application of abrasive mediato spring seat
- Software-based testing, documentationand evaluation
- Accepted by all leading car manufacturers
- Compliant with German OEM standards (AK-LH07) for springs and stabilizer bars
