Simulation on Reliability Enhancement Testing Technology of Ramming System

doi:10.1007/s12204-015-1653-4

Abstract

Abstract: Ramming system is the key device to guarantee the firing speed of self-propelled gun. Based on traditional reliability enhancement testing method, a new kind of reliability enhancement testing simulation method of ramming system is put forward firstly. In CAD software Pro/E and dynamic simulation software ADAMS, the virtual prototype of ramming system is established. In EASY5 software, the corresponding hydraulic system and control system models are built. The reliability enhancement testing virtual environment of ramming system is developed using the mechanical-electrical-hydraulic co-simulation technology. Based on the load spectra provided by virtual prototype, and the stress distribution provided by finite element analysis and material’s S-N curve (S is fatigue strength, N is fatigue life), a model of fatigue enhancement coefficient is established through the failure mechanism analysis. The simulation processes and simulation results show the feasibility of reliability enhancement testing based on virtual prototype, and provide sufficient theory reference for structure improvement and optimization of ramming system.

Key words: ramming system| virtual prototype| reliability enhancement testing| fatigue

摘要： Ramming system is the key device to guarantee the firing speed of self-propelled gun. Based on traditional reliability enhancement testing method, a new kind of reliability enhancement testing simulation method of ramming system is put forward firstly. In CAD software Pro/E and dynamic simulation software ADAMS, the virtual prototype of ramming system is established. In EASY5 software, the corresponding hydraulic system and control system models are built. The reliability enhancement testing virtual environment of ramming system is developed using the mechanical-electrical-hydraulic co-simulation technology. Based on the load spectra provided by virtual prototype, and the stress distribution provided by finite element analysis and material’s S-N curve (S is fatigue strength, N is fatigue life), a model of fatigue enhancement coefficient is established through the failure mechanism analysis. The simulation processes and simulation results show the feasibility of reliability enhancement testing based on virtual prototype, and provide sufficient theory reference for structure improvement and optimization of ramming system.

关键词: ramming system| virtual prototype| reliability enhancement testing| fatigue

CLC Number:

HU Hui-bin1,2* (胡慧斌), CAO Li-jun1 (曹立军), CHEN Shu-xiao2 (陈树肖), MA Ji-sheng1 (马吉胜). Simulation on Reliability Enhancement Testing Technology of Ramming System[J]. Journal of shanghai Jiaotong University (Science), 2015, 20(4): 477-481.

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