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Beijing, China

Ge Y.,Weapon Institute | Ge Y.,Harbin Engineering University | Qiu Z.-M.,Weapon Institute | Xiao L.,Weapon Institute
Binggong Xuebao/Acta Armamentarii | Year: 2011

A new method using a time-oriented design (TOD) and a random scheduling design (RSD) was proposed for some problems, such as low feeding rate, slow ammo-replacement velocity, of naval gun feeding system. A time allotment model of the system and a random scheduling model of multiple operating steps were established. The decision management and simulations of the whole system of the supplying work steps were carried out based on the RSD as well as Markov state transition matrix. It is shown from the integrated mechanical, electrical and control performance simulations that, under the condition of ammo replacement, the average feeding rate of continuous 10 rounds can exceed 35 rounds/min, the ammo replacement time can be less that 4.6 s, and the work efficiency of the optimized system is increased by 20%~30%. This method gives a reference to design the mechanism adapted to the continuously feeding and supplying demands.

Ge Y.,Harbin Engineering University | Qiu Z.-M.,Weapon Institute | Xiao L.,Weapon Institute | Zhu L.-L.,Harbin Engineering University
Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology | Year: 2013

Focus on the continuously improved requirements for systemic reliability under the complex transporting conditions such as a larger quantity of projectiles, multiple kinds of ammunitions, high-speed working rate, heavy loads and random working states, the design rules are built based on failure forms of the working parts from the default values of the systemic reliability. The rapid allocation of reliable degrees and the probability distribution selection of systemic parts and components of ATS (ammunition transporter system) is made due to the AGREE method. Then, the structure under the working conditions is designed and the reliability model of the structure with hybrid modules is built on the working principles of ATS. What's more, the reliability simulations of ATS under the multiple load conditions is made utilizing the FEM software. The results show the following points: ATS structure designed by rapid reliability method meet the design requirements for the systemic reliability; the structural functions and mechanical performances are better than the structure designed by the method of classic safety factors; RRM is convenient and reliable for system reliability design.

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