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The composite rocket directional tube structure analysis and optimization

Author: ZhuoAiBao
Tutor: YuCunGui
School: Nanjing University of Technology and Engineering
Course: Armament Launch Theory and Technology
Keywords: Composites Rockets directional tube Transient dynamics analysis Multi - Island Genetic Algorithm Optimization iSIGHT
CLC: V25
Type: Master's thesis
Year: 2009
Downloads: 233
Quote: 2
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Abstract


The composite material used in rockets directed tube tends to reduce the structural quality , ease of box-type launch rocket weapon system to improve tactical and technical performance . In this paper, direct composite pipe system in-depth analysis , research and exploration directed around the composite tube parametric modeling , dynamic characteristics , strength characteristics and structural optimization problem . The research work mainly includes the following aspects : ( 1 ) the use of ABAQUS secondary development language Python directional composite tube parametric modeling and direct composite pipe modal analysis to obtain the order of the directional tube natural frequencies and mode shapes . In addition , access to the law of direct composite pipe natural frequency changes with the angle and Shop layers of ply by changing the composite overlay structure . ② directional composite tube analysis of transient dynamics analysis of the results obtained at different times and overlay composite directional tube muzzle vibration . Additionally bomb tube collision analysis , collision force curve to obtain the three centering Ministry and directional button . ③ According to the different optimization goals and optimization levels through iSIGHT optimization software integrates ABAQUS, the application of multi-island genetic algorithm and sequential quadratic programming method optimization algorithm , directional tube composite ply angle optimization and stiffness , obtained composite has excellent overall performance directional tube design . Composite analysis methods and conclusions have some reference value in the composite directional tube design .

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