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Magnetorheological technology fuze postponed release insurance institutions

Author: WangWeiQing
Tutor: WangZuo
School: Nanjing University of Technology and Engineering
Course: Weapons systems and the use of engineering
Keywords: Fuse Magnetorheological fluid Delay Arming Delay Arming time Flow field analysis
CLC: TH112
Type: Master's thesis
Year: 2011
Downloads: 16
Quote: 0
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Abstract


The magnetorheological fluid extension Arming magnetorheological fluid is applied to the fuze delay arming with high safety, high Arming reliability Delay Arming time adjustable simple structure, etc.. Delay arming of the fuze magnetorheological fluid is still in the theoretical stage of exploration, and there is the problem of imperfect design theory, magneto-rheological fluid materials prone to precipitation phenomena. Using theoretical analysis, numerical simulation and experimental validation of the method of combining insurance magnetorheological fluid fuze extension lift the study of the following aspects: 1. Theoretical analysis and calculation, design on the basis of previous studies, and processing the fuze magnetorheological fluid Delay Arming prototype. The magnetorheological fluid hydrodynamic theory fuze magnetorheological fluid Delayed Relief insurance institutions Delay Arming asked mathematical model to arrive at the institutions Delay Arming time formula. At the same time the use of the Ansys software simulation analysis of the correctness of the extension Arming time formula. The simulation results show that: the formula can be used as a reference mechanism design formula. Magnetorheological fluid precipitated combined fuze use of environmental requirements as well as the characteristics of magnetorheological fluid proposed several measures to improve the stability of magnetorheological fluid precipitation and commercial magnetorheological fluid improved preparation of a new magnetorheological fluid test results show that the prepared magnetorheological fluid to solve the the sedimentation stability problems, magnetorheological fluid applied to the fuze delay arming. 4 design and completion of static tests and dynamic tests of the bodies prototype. The safety performance of the static test research institutions and arming reliability. Pilot test system using homemade projectile speed, discharge aperture, magnetorheological fluid parameters, the influence of temperature on the institutions Delay Arming time, test results showed that the impact of the law with the theory and simulation results is consistent. Dynamic test program, designed in accordance with the Langley method to complete the institutional dynamic test. The test results show that: in the the 1959 howitzer 130 mm Cannon environment, the extension of the agency arming distance greater than 100m institutional security, reliability, delayed arming distance meet the design requirements. Finally, the work of this study are summarized in the thesis completed work and innovation, and the prospect of future research work.

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CLC: > Industrial Technology > Machinery and Instrument Industry > Mechanics (mechanical design of the basic theory ) > Of mechanism
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