Equivalent simulation test method for internal ballistics of fuze reserve chemical power source with adjustable combined overload and rotational speed

Abstract

To solve the problem that the test environment is not equivalent to the actual use environment in the step-by-step test method of fuze reserve chemical power supply, this paper proposes a fuze reserve chemical power source with an adjustable combination of overload and rotational speed by building a test platform to realize the synchronization of overload and rotational speed. In this method, compressed air and a rotary table were used to generate the flight power and rotational speed of the test tool, and then the overload and centrifugal force were controlled and loaded by the tool launcher and damping generator, and finally, the non-destructive recovery of the test tool was realized by the slow release mechanism. The test results showed that using the synchronous realization and controllable combination of overload and rotation, the internal ballistic equivalent simulation method could generate 3 000g ~ 30 000g overload, and the rotational speed of 0 ~ 18 000rpm could be synchronously controlled. The test results of the fuze power supply showed that the combination of overload and rotational speed could be controlled by this method. Under the same conditions, the overload repeatability reaches 95.5%, the rotational speed stability reaches 99.7%, and the equivalence with the medium and large-caliber inner ballistic environment is 91%. Therefore, through the test, the basic equivalent simulation of the ballistic environment in the fuze power supply has been realized.