Our factory’s latest generation testing instrument boasts superior performance and easy installation with low failure rate. It is equipped with high-precision sensors to carry out real-time detection and overload alarm.
1. Product Introduction
This machine is specially designed for fatigue tests of automobile leaf springs. It adopts electro-hydraulic servo mode to complete static, dynamic and fatigue tests in accordance with RMB3383 Test Method for Automobile Leaf Spring Bench Test.
2. Technical Parameters
1. Rated Dynamic & Static Load: ±300kN
2. Load Measurement Accuracy: ±0.5%FS
3. Rated Actuator Displacement: 300mm
4. Displacement Measurement Accuracy: ±0.5%FS
5. Max Actuator Amplitude: ±80mm
6. Operating Frequency Range: 0.1～8Hz
1. Amplitude up to ±80mm at 1Hz
2. Amplitude up to ±25mm at 3Hz
7. Crossbeam Moving Range: ≥300mm
Test Result Evaluation
1. Fatigue Life Definition: The maximum cycle number the spring reaches under specified failure conditions is defined as its fatigue life.
2. Fatigue Life Verification: The test passes if no spring failure occurs after specified cycles.
3. Reliability Verification: Determine appropriate sample quantity according to target reliability. The test is passed if the number of qualified samples exceeds the minimum required quantity specified in standard; otherwise, it fails.
