The Impact of Flow Pulsation of Axial Piston Pump on Gun Pitching Accuracy of a Multiple Rocket Launcher

doi:10.3969/j.issn.1000-1093.2019.09.003

Abstract

Abstract: A simulation model of slanting axial piston pump is established by using AMESim software. The proposed model is used to study the influence of flow pulsation of an axial piston pump on the pitching accuracy of electro-hydraulic proportional system for a multiple rocket launcher. The effect laws of the slanting angle of piston pump and the rotating speed of input shaft on the flow pulsation are studied, and a typical working condition is identified. A new concept of flow pulsation volume is defined and used in the new mathematic model proposed in this work. The quantitative relationship of the fire angle and the gun pitching accuracy was obtained and analyzed by using MATLAB software. The results show that the period of flow pulsation remains unchanged with the increase in the slanting angle of piston pump, while its amplitude becomes larger. When the rotating speed of input shaft increases, the period of flow pulsation of piston pump decreases and its amplitude increases. The pitching accuracy caused by flow pulsation becomes smaller with the increase in the fire angle. The pitching accuracy caused by flow pulsation on the multiple rocket launcher meets the requirement for the pitching accuracy of servo system, and the theore-tical model can be taken as a reference for the design of hydraulic elevating mechanism.Key

Key words: multiplerocketlauncher, axialpistonpump, gunpitchingaccuracy, flowpulsation, hydraulicsystem, hydraulicelevatingmechanism

CLC Number:

YUE Jiawei, DAI Bo, WU Xu, YANG Lin. The Impact of Flow Pulsation of Axial Piston Pump on Gun Pitching Accuracy of a Multiple Rocket Launcher[J]. Acta Armamentarii, 2019, 40(9): 1781-1786.

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第40卷
第9期2019 年9月兵工学报ACTA
ARMAMENTARIIVol.40No.9Sep.2019

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