Road Spectrum Acquisition, especially the load spectrum acquisition, is to provide reliable data support for the laboratory bench tests or multi-body dynamics simulation analysis, so that engineers can predict and judge accurate fatigue life of each automobile part.
The data collection usually takes hours. The test is performed on public roads or standard roads in the test field. And the test roads may include various possible pavements to ensure that the data is completely collected and valid during the entire test.
The physical quantities collected by the road spectrum mainly include:
1) six-component force of wheels
2) CAN signal of automobile
3) Stress in dangerous parts of car body and chassis parts
4) Vibration acceleration of key parts such as body and chassis
5) Jumping displacement of shock absorber during driving
By processing the collected road spectrum data, and using the processed data on a road simulation test bench or in simulation software, the fatigue life of the entire vehicle and its components can be studied.
Road spectrum data can be used for fatigue test or simulation analysis, such as:
1) Vehicle fatigue
2) Transmission fatigue
3) Transmission system fatigue
4) Suspension system fatigue
5) Fatigue of each component (such as seat, subframe, etc.)
The Dynatronic solution of RE-846U Rugged Data Acquisition System is specially designed for data collection in a variety of harsh situations such as vehicles, airborne, and shipborne environment. The overall shell of RE-846U adopts a rugged design that can resist strong vibration and shock. Meanwhile, the channels can meet the access and measurement requirements of various sensors. The acquisition instrument has an offline sampling function, which is convenient for the test engineers to use.
