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Research on the Structural Design and Experimentation of Auxiliary Gas Generator

Author: ZengQingFu
Tutor: GeYang；YangYuCi
School: Harbin Engineering University
Course: Mechanical Engineering
Keywords: Auxiliary gas generator Nonlinear Finite Element Simulation Ground firing test
CLC: TJ765
Type: Master's thesis
Year: 2009
Downloads: 91
Quote: 0
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Abstract


Guided munitions with long range , good direction , perform precision strikes and other prominent feature , guided aerial bombs development trend evident. Gas generator to provide energy for the guided munitions , in essence, is a solid rocket motor , is an essential component guided munitions , the auxiliary gas generator gas generator as an important part of high-pressure gas through the grain combustion turbine Quick Start generator , the control system to provide energy . General aviation ammunition can be done by ordinary low resistance plus guided aerial bombs on tanks and wing unit guided change of modification, present, Air China's existing conventional ammunition inventories, models and more , so research auxiliary gas generator for our conventional aviation transformed into a guided aerial bomb bomb important military significance . This article based on solid rocket engine works , under certain conditions, analysis of the gas flow pattern in the combustion chamber , the solid propellant selection and performance analysis, the auxiliary gas generator performance parameters of the mathematical model for the combustion chamber of the gas working pressure , flow rate and charge of the burning rate variation studies, and on this basis to establish the gas pressure in the combustion chamber - grain burning time , gas flow rate - grain burning function of time . Based on the working mechanism of the auxiliary gas generator and performance parameters of the mathematical model for a certain type of gas generator cylinder, head , grain , block board and other core components of the drug design ; in high temperature, low temperature environment , the auxiliary big pressure in the combustion chamber gas generator load, variable flow under the action of high-pressure gas shell structure for performance analysis and verification , to ensure the auxiliary gas generator housing security and reliable performance . Based on the trial production of a certain type of auxiliary gas generator for gas pressure , mean pressure and working time and other parameters of the test , according to the gas pressure - time , gas flow rate - time of the test curve, the auxiliary gas generator design performance , structural process were analyzed and verified. Auxiliary gas generator proved reasonable structure design and safety for our regular guided aerial bombs to provide reference and basis of the restructuring .

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CLC: > Industrial Technology > Arms industry > Rockets, missiles > Missile > Guidance and Control
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