无油涡旋压缩机小曲拐动力特性与仿真研究
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摘要
为了分析研究涡旋压缩机小曲拐的动力特性问题,从机构学入手将小曲拐简化为平面四杆机构,并从运动学以及动力学方面分析了无油涡旋压缩机小曲拐的受力情况。结果表明,小曲拐受力是连续、周期性的,且每个小曲拐都是半周受力,在一个周期内受力有两个最大值、两个最小值。最后采用SolidWorks和ADAMS软件对涡旋压缩机进行了三维建模与虚拟装配,通过运动仿真,获得了准确的运动学参数,从而验证了小曲拐防自转机构的可行性,为小曲拐的设计优化提供了参考依据。
In order to investigate the dynamic characteristics of mini-cranks for oil-free scroll compressor,it simplifies the mini-cranks as planar four-bar mechanism based on theory of mechanism,analyzes the forces acting on the mini-cranks according to the kinematics and dynamic theory.The results show that the forces acting on mini-cranks in a cycle are continuous and periodic.Two maximum forces and two minimum forces appear in a period of 2π.Based on Solidworks and Adams software,it builds 3D modeling and virtual assembly of oil-free scroll compressor,obtains the accurate kinematics parameters and the same motion law with the Four-bar mechanism law of mini-crank.This verifies the feasibility of mini-cranks as anti-rotation mechanism and provides certain reference for the optimization design of the mini-cranks.
In order to investigate the dynamic characteristics of mini-cranks for oil-free scroll compressor,it simplifies the mini-cranks as planar four-bar mechanism based on theory of mechanism,analyzes the forces acting on the mini-cranks according to the kinematics and dynamic theory.The results show that the forces acting on mini-cranks in a cycle are continuous and periodic.Two maximum forces and two minimum forces appear in a period of 2π.Based on Solidworks and Adams software,it builds 3D modeling and virtual assembly of oil-free scroll compressor,obtains the accurate kinematics parameters and the same motion law with the Four-bar mechanism law of mini-crank.This verifies the feasibility of mini-cranks as anti-rotation mechanism and provides certain reference for the optimization design of the mini-cranks.
引文
[1]李超,郑尚书,赵嫚,等.涡旋压缩机小曲拐防自转机构动力特性分析[J].中国机械工程,2014,25(2):236-241.
[2]刘振全,赵嫚,李超.涡旋压缩机曲柄销防自转机构分析[J].兰州理工大学学报,2006,32(4):53-55.
[3]彭斌,孙迎.变截面涡旋压缩机数学模型及试验研究[J].机械工程学报,2015,51(14):185-191.
[4]GONG H,XIE X,LEMORT V,et al.Recent advances on the oil-free scroll compressor[J].Recent Patents on Mechanical Engineering,2016,9(1):37-47.
[5]MORISHITA E,SUGIHARA M,NAKAMURA T.Scroll compressor dynamics:1st report,the model for the fixed radius crank[J].Transactions of the Japan Society of Mechanical Engineers,1985,51(248):476-482.
[6]李超,单彩侠,余鹏飞,等.涡旋压缩机小曲拐防自转机构的动力特性[J].兰州理工大学学报,2008,34(1):50-53.
[7]赵嫚.涡旋压缩机机构动力特性的研究[D].兰州:兰州理工大学,2006.
[8]李超.驱动轴承内嵌式涡旋压缩机特性研究[D].兰州:兰州理工大学,2007:1-2.
[9]郭卫东.虚拟样机技术与ADAMS应用实例教程[M].北京:北京航空航天大学出版社,2008.
[10]胡跃华,范海明,李海生,等.涡旋压缩机虚拟样机运动仿真研究[J].煤矿机械,2009,30(2):54-56.
[11]李超,余洋,赵嫚.涡旋压缩机的虚拟建模与运动仿真[J].流体机械,2012,40(1):17-21.
[12]王颖,张维强.基于ADAMS的偏置曲柄滑块机构的运动学及动力学仿真研究[J].科学技术与工程,2010,10(32):8042-8045.
[2]刘振全,赵嫚,李超.涡旋压缩机曲柄销防自转机构分析[J].兰州理工大学学报,2006,32(4):53-55.
[3]彭斌,孙迎.变截面涡旋压缩机数学模型及试验研究[J].机械工程学报,2015,51(14):185-191.
[4]GONG H,XIE X,LEMORT V,et al.Recent advances on the oil-free scroll compressor[J].Recent Patents on Mechanical Engineering,2016,9(1):37-47.
[5]MORISHITA E,SUGIHARA M,NAKAMURA T.Scroll compressor dynamics:1st report,the model for the fixed radius crank[J].Transactions of the Japan Society of Mechanical Engineers,1985,51(248):476-482.
[6]李超,单彩侠,余鹏飞,等.涡旋压缩机小曲拐防自转机构的动力特性[J].兰州理工大学学报,2008,34(1):50-53.
[7]赵嫚.涡旋压缩机机构动力特性的研究[D].兰州:兰州理工大学,2006.
[8]李超.驱动轴承内嵌式涡旋压缩机特性研究[D].兰州:兰州理工大学,2007:1-2.
[9]郭卫东.虚拟样机技术与ADAMS应用实例教程[M].北京:北京航空航天大学出版社,2008.
[10]胡跃华,范海明,李海生,等.涡旋压缩机虚拟样机运动仿真研究[J].煤矿机械,2009,30(2):54-56.
[11]李超,余洋,赵嫚.涡旋压缩机的虚拟建模与运动仿真[J].流体机械,2012,40(1):17-21.
[12]王颖,张维强.基于ADAMS的偏置曲柄滑块机构的运动学及动力学仿真研究[J].科学技术与工程,2010,10(32):8042-8045.