【裝備理論與裝備技術】
氣液壓彈射動力學影響參數分析
張永亮a,范文欣a,田野b
(中北大學a.機械與自動化學院;b.機電學院, 太原035100)
摘要:為了研究氣液壓彈射系統動力學參數的影響,通過建立含有蓄能器、液壓缸、滑輪組和渦輪阻力器的動力學控制方程,并利用MATlab編寫了計算程序;在此基礎上,忽略管道接口和氣液壓閥的流動細節問題,對影響彈射系統效率的因素進行仿真分析并對各參數進行分析;結果表明:蓄能器充油壓力、蓄能器容積和液壓系統的阻尼特性是影響發射距離和發射起飛速度的關鍵參數,因此在一定范圍內通過調節氣液壓能源系統參數和改善系統的性能,有助于提高彈射速度、加速度和效率,同時為工程研制提供了重要的理論參考。
關鍵詞:氣液壓;動力學;彈射;仿真計算
收稿日期:2014-09-15
作者簡介:張永亮(1989—),男,碩士,主要從事振動與噪聲控制研究。
doi:10.11809/scbgxb2015.01.016
中圖分類號:TJ-9
文章編號:1006-0707(2015)01-0056-04
本文引用格式:張永亮,范文欣,田野.氣液壓彈射動力學影響參數分析[J].四川兵工學報,2015(1):56-59.
Citationformat:ZHANGYong-liang,FANWen-xin,TIANYe.StudyonDynamicEjectionForceofNumericalParametersofPneumaticandHydraulicLaunching[J].JournalofSichuanOrdnance,2015(1):56-59.
StudyonDynamicEjectionForceofNumericalParametersof
PneumaticandHydraulicLaunching
ZHANGYong-lianga, FAN Wen-xina, TIAN Yeb
(a.SchoolofMechanicalandPowerEngineering;b.SchoolofMechantronicsEngineering,
NorthUniversityofChina,Taiyuan035100,China)
Abstract:In order to study the effects of gas dynamic hydraulic catapult system parameters, the flow details pipe interface and a hydraulic valve were ignored, and the simulation analysis of the factors affecting the ejection system efficiency and the various parameters were analyzed on the basis of the establishment of energy storage device containing dynamics, hydraulic cylinder, a pulley block and a turbine damper control equation, and written computer program by using the MATlab. The results show that the damping characteristics of oil filled pressure accumulator, the accumulator volume and the hydraulic system are the key parameters affecting the launch distance and the launching speed, so the performance of solar term by adjusting hydraulic energy system parameters and improving the system in a certain range are benefit in improving the ejection velocity, acceleration and efficiency, which can provide an important reference for engineering development.
Keywords:pneumaticandhydraulic;dynamicmodels;ejection;simulation
氣液壓彈射作為一種基于新型能量轉換方式的彈射技術,具有彈射質量范圍廣、過載均勻、操作簡單、可重復使用、無聲/光/熱效應等優點,在模擬訓練靶標發射、無人機/艦載機彈射、火箭導彈軟發射以及火箭導彈發射過程動態模擬等方面具有寬廣的應用前景。目前,國內外學者已對該項技術進行了大量研究,其中國外以美國和德國發展較為成熟[1,2],國內以李悅等[3-5]以無人機彈射為背景研究為主,并獲得了一定的成果。……