基于ABAQUS的泵送系统活塞运动过程受力分析研究
|
摘要
混凝土泵送系统中活塞与缸筒内壁的接触力直接影响活塞的密封性以及活塞的摩擦磨损等性能,进而对整机的稳定性、可靠性有重大的影响。通过理论计算、有限元分析,对活塞工作过程进行受力分析,结果表明,活塞所受挤压力随着缸筒与活塞轴线夹角的增加,呈现逐渐增大的趋势。由于有限元分析更加接近实际工况,可对理论计算值进行系数修正。通过研究,得出修正系数λ为1.40～2.15。该修正系数的提出,可为后续利用最基本的理论分析方法解决复杂问题提供参考。
That inside a concrete pumping system a force comes out when the piston contacts with the cylinder's inside-wall,which would affect the piston's sealing function and the piston's function of friction and wear. This would further affect greatly stability and reliability of the whole machine. A finding,through theoretical analyses, and finite elements analyses, as well as stress analyses during the piston's operation,tells that squeezing force on the piston would increase along with increase of the included angle of the cylinder with the piston's axis, showing an ever increasing tendency. As the finite elements analysis does more approaching the actual working conditions, which can rectify the theoretical computation's value. Through studies it has got correction factor λ as1.40～2.15, which can provide a reference for solutions to complex questions through most basic theoretical analyses.
That inside a concrete pumping system a force comes out when the piston contacts with the cylinder's inside-wall,which would affect the piston's sealing function and the piston's function of friction and wear. This would further affect greatly stability and reliability of the whole machine. A finding,through theoretical analyses, and finite elements analyses, as well as stress analyses during the piston's operation,tells that squeezing force on the piston would increase along with increase of the included angle of the cylinder with the piston's axis, showing an ever increasing tendency. As the finite elements analysis does more approaching the actual working conditions, which can rectify the theoretical computation's value. Through studies it has got correction factor λ as1.40～2.15, which can provide a reference for solutions to complex questions through most basic theoretical analyses.
引文
[1]陈新春,齐伟,王灿,等.大孔径短孔系直径、圆度、同轴度复合测量技术研究[J].工程机械,2017,48(5):27-34.
[2]赵斌,蹤雪梅,陈新春.直线度检测系统:中国,201510335240.1[P].2015-06-18.
[3]蹤雪梅,赵斌,陈新春.细长杆工件直线度检测系统及方法:中国,201710247033.X[P].2017-04-17.
[4]陈新春,齐伟,王灿,等.光学式深孔直线度测量技术研究[J].工程机械,2016,47(9):37-40.
[5]王树青,郭金宝,郑洪国,等.基于GLIDE软件的发动机活塞型线设计优化[J].内燃机与动力装置,2009,12(6):25-28.
[6]李正守,郭立新.汽车发动机活塞磨损及气缸活塞间隙变化研究[J].机械科学与技术,2014,33(3):395-398.
[7]蒋帆.基于Solid Works的活塞接触应力分析与仿真[J].机械研究与应用,2013,26(127):34-36.
[8]何国军.混凝土泵送与布料系统研究[D].沈阳:沈阳工业大学,2014.
[9]金振邦.新型聚氨酯密封件在液压缸中的应用[J].工程机械,2002(8):26-27.
[2]赵斌,蹤雪梅,陈新春.直线度检测系统:中国,201510335240.1[P].2015-06-18.
[3]蹤雪梅,赵斌,陈新春.细长杆工件直线度检测系统及方法:中国,201710247033.X[P].2017-04-17.
[4]陈新春,齐伟,王灿,等.光学式深孔直线度测量技术研究[J].工程机械,2016,47(9):37-40.
[5]王树青,郭金宝,郑洪国,等.基于GLIDE软件的发动机活塞型线设计优化[J].内燃机与动力装置,2009,12(6):25-28.
[6]李正守,郭立新.汽车发动机活塞磨损及气缸活塞间隙变化研究[J].机械科学与技术,2014,33(3):395-398.
[7]蒋帆.基于Solid Works的活塞接触应力分析与仿真[J].机械研究与应用,2013,26(127):34-36.
[8]何国军.混凝土泵送与布料系统研究[D].沈阳:沈阳工业大学,2014.
[9]金振邦.新型聚氨酯密封件在液压缸中的应用[J].工程机械,2002(8):26-27.