With the continuous development of automobile and railway manufacturing, auto parts manufacturers, automobile companies, racing teams and railway manufacturers are pursuing excellent quality and excellent performance in a highly competitive market. Among them, shock absorbers are key components of automotive and railway equipment, and their performance and durability reliability are crucial to the entire transportation industry.
In order to ensure the stability and reliability of shock absorbers under a wide range of extreme conditions, it is imperative to thoroughly test their durability. In shock absorber durability testing, longer cycles are usually run at different speeds to simulate the various conditions that may be encountered in actual driving and transportation.
In this article, we will go deep into the principle, test method, and impact of the test results on product quality and performance of shock absorber durability test. By gaining an in-depth understanding of the durability testing of shock absorbers, we are able to better understand how to ensure the stable operation of automotive and rail equipment in a variety of complex environments, and improve the safety and reliability of transportation systems.
First, the test principle.
The shock absorber durability test verifies its stability and reliability under actual use conditions by simulating long-term vibrations at different speeds and frequencies, as well as constant positioning and shift amplitudes.
2. Test relevant standards.
ISO 6312:2010 - Road vehicles - Shock absorbers - Performance requirements and test methods for sliding plunger shock absorbers.
ISO 11443:2018 - Road vehicles - Vibration test methods - Simulation of vehicle vibration using vehicle suspension.
SAE J2521:2010 - Road vehicles - Shock absorber systems - Durability test procedures.
GB T 29238-2012 - Test method for durability of shock absorbers for automobiles.
3. Test instruments.
1. Electro-hydraulic servo fatigue testing machine.
2. Test fixture.
Fourth, the test process.
Steps. 1. Install shock absorbers.
The shock absorber to be tested is correctly installed on the servohydraulic fatigue testing machine to ensure that it is firmly installed to simulate the working conditions of the actual vehicle in driving.
Steps. 2. Set the test parameters.
The frequency, amplitude and period of the test are set on the servohydraulic testing machine to simulate the conditions of long-period vibration at different speeds and frequencies, as well as the constant displacement amplitude.
Steps. 3. Fatigue test.
Start the servohydraulic fatigue testing machine to carry out long-term fatigue testing. During the test, the system simulates the working environment of the shock absorber in actual use by constantly loading and unloading cycles to evaluate its durability and performance.
Steps. 4. Monitoring and recording of data.
Real-time monitoring of key parameters during the test, such as displacement, force, vibration frequency, etc., as well as changes in the appearance of the shock absorber. With data logging, anomalies can be detected in a timely manner and the necessary adjustments can be made to the test.
Steps. 5. Conduct special tests.
Depending on the specific needs, special tests are carried out, such as simulating extreme working conditions or simulating anomalies that may be encountered in actual use, to evaluate the performance of the shock absorber more comprehensively.
Steps. 6. Analysis of results.
After the test is completed, the collected data is analyzed to evaluate the durability capability of the shock absorber. Compare the test results with the requirements of relevant standards to ensure that the performance of the shock absorber meets the design and industry standards.
The above is the content of the shock absorber durability test introduced, I hope it can help you!If you also want to know more about the durability test standards, test methods and tests, shock absorber performance tests and test standards, the working principle of the electro-hydraulic servo fatigue testing machine, etc., you are welcome to send us a private message and leave a message, and the technical team of Kezhun Measurement and Control will answer for you for free!