西北工业大学学报
西北工業大學學報
서북공업대학학보
JOURNAL OF NORTHWESTERN POLYTECHNICAL UNIVERSITY
2014年
4期
646-650
,共5页
王红玲%田广来%付龙飞%刘劲松%强刚%赵文庆
王紅玲%田廣來%付龍飛%劉勁鬆%彊剛%趙文慶
왕홍령%전엄래%부룡비%류경송%강강%조문경
多轮系多支柱飞机%飞机刹车系统%谐振%流固耦合
多輪繫多支柱飛機%飛機剎車繫統%諧振%流固耦閤
다륜계다지주비궤%비궤찰차계통%해진%류고우합
accident prevention%aircraft landing%braking%flow rate%resonance%vibration%fluid-structure inter-action
多轮系多支柱飞机刹车液压管路振动不仅影响刹车系统的工作性能及寿命,还将严重影响飞机的飞行着陆安全。在首次飞行前,必须对其刹车液压管路系统进行振动机理分析。采用压力控制系统流固耦合分析的方法,通过仿真确定振动发生机理,并将实测结果与仿真结果比较,获得多轮系多支柱飞机刹车压力控制系统谐振的关键参数。为减小刹车系统振动耦合,避免谐振现象提供便捷、可靠的解决途径和措施。
多輪繫多支柱飛機剎車液壓管路振動不僅影響剎車繫統的工作性能及壽命,還將嚴重影響飛機的飛行著陸安全。在首次飛行前,必鬚對其剎車液壓管路繫統進行振動機理分析。採用壓力控製繫統流固耦閤分析的方法,通過倣真確定振動髮生機理,併將實測結果與倣真結果比較,穫得多輪繫多支柱飛機剎車壓力控製繫統諧振的關鍵參數。為減小剎車繫統振動耦閤,避免諧振現象提供便捷、可靠的解決途徑和措施。
다륜계다지주비궤찰차액압관로진동불부영향찰차계통적공작성능급수명,환장엄중영향비궤적비행착륙안전。재수차비행전,필수대기찰차액압관로계통진행진동궤리분석。채용압력공제계통류고우합분석적방법,통과방진학정진동발생궤리,병장실측결과여방진결과비교,획득다륜계다지주비궤찰차압력공제계통해진적관건삼수。위감소찰차계통진동우합,피면해진현상제공편첩、가고적해결도경화조시。
The vibration hydraulic line in aircraft braking system with multi-wheels and multi-struts not only affects the work performances and life of the system but also affects the landing safety or accident prevention of aircraft landing system seriously. The mechanism of vibration should be tested and analyzed on hydraulic line before maiden flight. We carry out the analysis method based on fluid-structure coupling for aircraft braking pressure control sys-tem. We ascertain the mechanism of vibration by means of simulation and key parameters controlling resonance are acquired through the comparison of the measured results with simulation results. A convenient way and reliable measure is proposed for the sake of reducing vibration coupling and avoiding resonance phenomenon.