A study on the method of obtaining field dynamic characteristic parameters of a rocket sled

Abstract In order to solve the problem of obtaining the accuracy of dynamic characteristic parameters in a rocket sled test, a multi-channel parallel storage test device for a rocket sled field test was designed and verified in the laboratory. With STM32 as the control core and NAND FLASH as the data memory, the multi-channel vibration, shock, and course acceleration signals can be collected, stored, and transmitted synchronously. Through laboratory verification, the performance test results of the system show that the system can complete the multi-channel 500 kHz sampling frequency parameter acquisition and storage, and can realize the normal acquisition of vibration, shock, and course acceleration signals under the environment of high-speed movement of a rocket sled.