Overload Acceleration Test Device Structure Design And Analysis

To evaluate the performance and reliablity of explosive and precise electronic components which are used in high overload acceleration environments, a high overload acceleration experimental device must be provided. The purpose of the research is to design a high overload experimental device which can produce high acceleration environment to simulate the process of the gun firing. To simulate the overloaded acceleration environment, the gas in a closed chamber is compressed by a high speed mass which moves along the barrel. A resulting instantaneous reverse acceleration can be obtained when the gas is compressed to a certain degree. A mathematical model is set up to simulate this working principle. The performance influenced by the gas state parameters and system structural parameters are analyzed. The main research contents are:Firstly, a mathematical model based on the experimental device working principle was build. A numerical model figure by using Matlab/Simulink simulation software was established. The structure parameters by calculating and analysing of the results on the device was obtained. Secondly, the overall structure of the experimental device according to the determination of the structure parameters was design. Resonable arrangement of the pneumatic control system was make. Thirdly, some detailed structural design and stress analysis for the important components of the experimental device was done. Finally some test methods to test the parameters in this device was proposed. The work of this paper can provide theoretical reference for the design of the high overload acceleration experimental device.