机械离心式转速敏感元件的迟滞特性建模仿真研究
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摘要
针对机械离心式转速敏感元件的迟滞问题,对影响其迟滞特性的因素和减少迟滞的控制方法进行了研究,首先阐述了机械离心式转速敏感元件的工作原理,构建了某航空发动机用转速敏感元件的数学模型,随后利用AMESim软件对元件迟滞特性进行了仿真,对比分析了活门摩擦力和调准弹簧刚度差两个因素对迟滞特性的影响,最后通过选取不同加工状态的活门以及不同迟滞量的弹簧进行了试验验证。研究结果表明,活门摩擦力和调准弹簧刚度差是影响元件迟滞的重要因素,通过修整活门控油孔尖边和降低调准弹簧刚度差两个方面的措施,控制元件迟滞量可满足元件迟滞性能要求。
Aiming at the hysteresis of the mechanical centrifugal speed sensitive element,the influencing factors to the element hysteresis and the controlling method which can reduce hysteresis were investigated,and firstly,the working principle of the mechanical centrifugal speed sensitive element was expounded and the mathematical model of aero engine centrifugal speed sensor element was established,and the simulation model was developed based on AMESim. The effect of valve friction force and adjusting spring stiffness difference on the model's hysteresis characteristic were computed to make comparisons. Finally,test was carried out through choosing valves of different manufactured condition and springs of different hysteresis characteristic. The results indicate that valve friction force and adjusting spring stiffness are important factors that influence the element hysteresis,and the element's hysteresis characteristic requirement can be met by finishing the sharp edge of accusing oil hole and reducing adjusting spring stiffness.
Aiming at the hysteresis of the mechanical centrifugal speed sensitive element,the influencing factors to the element hysteresis and the controlling method which can reduce hysteresis were investigated,and firstly,the working principle of the mechanical centrifugal speed sensitive element was expounded and the mathematical model of aero engine centrifugal speed sensor element was established,and the simulation model was developed based on AMESim. The effect of valve friction force and adjusting spring stiffness difference on the model's hysteresis characteristic were computed to make comparisons. Finally,test was carried out through choosing valves of different manufactured condition and springs of different hysteresis characteristic. The results indicate that valve friction force and adjusting spring stiffness are important factors that influence the element hysteresis,and the element's hysteresis characteristic requirement can be met by finishing the sharp edge of accusing oil hole and reducing adjusting spring stiffness.
引文
[1]谢小平,张学军,贺孝涛,等.某型航空发动机燃油流量调节器建模与故障仿真[J].航空发动机,2011,37(4):15-19.
[2]张玉龙,李胜男,刘金鹏,等.燃油流量调节器流量不稳故障分析与改进[J].失效分析与预防,2014,9(3):189-192.
[3]傅强.基于AMESim的某型涡轴发动机燃油调节器建模仿真[J].机械设计与制造,2013(4):252-255.
[4]傅强,樊丁.某型涡轴发动机离心飞重伺服组件工作原理与建模仿真研究[J].计算机测量与控制,2013,21(2):509-512.
[5]王曦.1种满足控制计划要求的凸轮型面设计方法[J].航空发动机,2013,39(1):1-5.
[6]《航空喷气发动机自动控制设计手册》编写组.航空喷气发动机自动控制设计手册(下册)[M].北京:国防工业出版社,1984.
[7]苏志善,王大迪.某型航空发动机落压比调节器性能及故障分析[J].航空发动机,2011.37(4):37-39.
[8]杨三序,谢煜,王业正.圆柱螺旋弹簧迟滞的检测和补偿[J].大学物理,2007,26(4):38-40.
[9]张天哲,董有尔.近代物理实验[M].北京:科学出版社,2004.
[10]KALLAFETIS P,COSTOPOULOS T.Modeling and simulation of an axial piston variable displacement pump with pressure control[J].Mechanism and Machine Theory,1995,30(4):599-612.
[11]吴文斐,郭迎清,李睿,等.涡扇发动机液压机械主控制系统建模与仿真分析[J].航空发动机,2011,37(1):16-19.
[12]PAOLI F,傅耀,王彤,等.发动机入口粒子分离器流场数值模拟及流道改进[J].流体机械,2011(4):10-16,53.
[13]任新宇,郭迎清,姚华廷.基于AMESim的航空发动机防喘调节器性能仿真研究[J].航空动力学报,2004,19(4):572-576.
[14]任新宇,王建礼,赵小龙.基于AMESim的涡扇发动机控制系统综合仿真[J].航空动力学报,2010,25(12):2816-2820.
[15]傅强.某型涡轴发动机转速伺服系统建模仿真研究[J].科学技术与工程,2014,14(17):303-305.
[16]郑昌马,吴坚锋,马冲,等.基于AMESim的PQ泵特性研究[J].机电工程,2010,27(1):59-61.
[2]张玉龙,李胜男,刘金鹏,等.燃油流量调节器流量不稳故障分析与改进[J].失效分析与预防,2014,9(3):189-192.
[3]傅强.基于AMESim的某型涡轴发动机燃油调节器建模仿真[J].机械设计与制造,2013(4):252-255.
[4]傅强,樊丁.某型涡轴发动机离心飞重伺服组件工作原理与建模仿真研究[J].计算机测量与控制,2013,21(2):509-512.
[5]王曦.1种满足控制计划要求的凸轮型面设计方法[J].航空发动机,2013,39(1):1-5.
[6]《航空喷气发动机自动控制设计手册》编写组.航空喷气发动机自动控制设计手册(下册)[M].北京:国防工业出版社,1984.
[7]苏志善,王大迪.某型航空发动机落压比调节器性能及故障分析[J].航空发动机,2011.37(4):37-39.
[8]杨三序,谢煜,王业正.圆柱螺旋弹簧迟滞的检测和补偿[J].大学物理,2007,26(4):38-40.
[9]张天哲,董有尔.近代物理实验[M].北京:科学出版社,2004.
[10]KALLAFETIS P,COSTOPOULOS T.Modeling and simulation of an axial piston variable displacement pump with pressure control[J].Mechanism and Machine Theory,1995,30(4):599-612.
[11]吴文斐,郭迎清,李睿,等.涡扇发动机液压机械主控制系统建模与仿真分析[J].航空发动机,2011,37(1):16-19.
[12]PAOLI F,傅耀,王彤,等.发动机入口粒子分离器流场数值模拟及流道改进[J].流体机械,2011(4):10-16,53.
[13]任新宇,郭迎清,姚华廷.基于AMESim的航空发动机防喘调节器性能仿真研究[J].航空动力学报,2004,19(4):572-576.
[14]任新宇,王建礼,赵小龙.基于AMESim的涡扇发动机控制系统综合仿真[J].航空动力学报,2010,25(12):2816-2820.
[15]傅强.某型涡轴发动机转速伺服系统建模仿真研究[J].科学技术与工程,2014,14(17):303-305.
[16]郑昌马,吴坚锋,马冲,等.基于AMESim的PQ泵特性研究[J].机电工程,2010,27(1):59-61.