Inertia measurement apparatus rocket sled overload test method based on 9 km orbit

Abstract

The present invention discloses an inertia measurement apparatus rocket sled overload test method based on a 9 km orbit. According to the method, three rich positive direction-negative direction overloads are provided in one test process; in each alternation process, an engine ignites to provide a heading overload at the starting stage of the test, and a heading positive direction acceleration is generated, wherein the process is the active segment; when the work of the engine stops, frictional resistance and air resistance of the orbit are applied on the rocket sled, and a heading negative direction acceleration is generated, wherein the process is the free gliding segment; when the rocket sled enters a water brake region, orbit resistance and air resistance are applied on the rocket sled, greater water brake force is further applied on the rocket sled, and the greater heading negative direction acceleration is generated, such that the speed of the rocket sled body is reduced, the rocket sled body is safely recovered, the basis is provided for validation of the large dynamic performance of the inertial measurement apparatus, test preparation time, test cost, human power and material resources are saved under the premise of unchanging of the test equipment, and effectiveness and coherence of the test are ensured.

Description

technical field [0001] The invention relates to an overload test method for a rocket sled of an inertial measurement device, in particular to an overload test method for a rocket sled of an inertial measurement device based on a 9km track, and belongs to the technical field of aerospace tests. Background technique [0002] The rocket sled is a retrievable test method that uses a rocket engine as power and runs along a specially constructed track. As early as after World War II, in order to promote the development of missile weapons and aerospace, countries such as the United States, Britain, France and the former Soviet Union successively built a variety of different types of test sites, and carried out research and development including inertial measurement devices. Some core components of the rocket skid comprehensive test work. With the development of information warfare and the demand for precise strikes, higher requirements have been put forward for inertial guidance a...

AI Technical Summary

Problems solved by technology

At present, our country mainly carries out the rocket sled test of the inertial measurement device on the 3km orbit, and the overload test research on the 9km orbit is still in a blank stage, so it is necessary to design an overload test scheme for the 9km orbit

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