筒体类舱体柔顺装配用可调柔性支撑设计与试验研究
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摘要
在筒体类舱段对接装配工艺中,引入可调柔性支撑单元,实现柔顺自适应装配工艺;基于位移型圆锥过盈联结工作原理,提出可调柔性支撑单元设计方法;对柔性支撑单元刚柔转变阈值进行理论计算,通过调节单元刚柔转变阈值设定支撑单元工作力,用以适应不同型号和质量舱段装配过程中的位姿调整补偿;基于试验研究方法,对可调柔性支撑单元刚柔转变阈值进行标定。结果表明:可调柔性支撑单元性能稳定,单元的阈值调节与理论计算相符,能够在可控范围内降低装配支撑系统的刚性,实现柔性支撑,构成柔顺装配系统,实现调姿补偿功能。
For the sake of flexible and adaptive assembly, the unit featuring adjustable and flexible support is adopted in the docking assembly of cylinder-type cabin. Based on the operating principle of displacement-type cone interference fit, an analysis is conducted on how to design the unit featuring adjustable and flexible support. The threshold value of rigid-flexible transformation is calculated theoretically. The unit's working force is determined by adjusting the threshold value, in order to accommodate the pose-adjustment compensation in the cabin-assembly process characterized with different types and weights.Based on the results obtained from the experimental research, the threshold value of the unit is calibrated. The results show that the unit featuring adjustable and flexible support has stable performance, and its threshold value is in agreement with the theoretical calculation, thus making the assembly support system in the controllable range more flexible. Hence, the flexible assembly support system helps to realize the pose-adjustment compensation.
For the sake of flexible and adaptive assembly, the unit featuring adjustable and flexible support is adopted in the docking assembly of cylinder-type cabin. Based on the operating principle of displacement-type cone interference fit, an analysis is conducted on how to design the unit featuring adjustable and flexible support. The threshold value of rigid-flexible transformation is calculated theoretically. The unit's working force is determined by adjusting the threshold value, in order to accommodate the pose-adjustment compensation in the cabin-assembly process characterized with different types and weights.Based on the results obtained from the experimental research, the threshold value of the unit is calibrated. The results show that the unit featuring adjustable and flexible support has stable performance, and its threshold value is in agreement with the theoretical calculation, thus making the assembly support system in the controllable range more flexible. Hence, the flexible assembly support system helps to realize the pose-adjustment compensation.
引文
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[11]Baldanzini N.A general formulation for designing interference-fit joints with elastic-plastic components[J].Journal of Mechanical Design,2004,126(4):737-743.
[12]滕瑞静,张余斌,周晓军,等.圆柱面过盈连接的力学特性及设计方法[J].机械工程学报,2012,48(13):160-166.
[2]Corbett J,Naing S.Feature based design for jigless assembly[D].USA,Bedfordshire:Cranfield University,2004.
[3]许国康.大型飞机自动化装配技术[J].航空学报,2008,29(3):734-740.
[4]刘伟东,宁汝新.机械装配偏差源及其偏差传递机理分析[J].机械工程学报,2012,48(1):156-168.
[5]韩锋,田威,袁正茂,等.面向飞机大部件的智能三坐标辅助测量技术研究[J].中国机械工程,2015,26(3):324-329.
[6]邹方,薛汉杰,周万勇,等.飞机数字化柔性装配关键技术及其发展[J].航空制造技术,2006(9):30-35.
[7]蒋君侠,范子春,郭志敏,等.适用于三段大部件对接的柔性装配平台设计与优化[J].浙江大学学报:工学版,2010,44(9):1798-1804.
[8]邱宝贵,蒋君侠,毕运波,等.大型飞机机身调姿与对接试验系统[J].航空学报,2011,32(5):908-919.
[9]郭志敏,蒋君侠,柯映林.基于三坐标定位器支撑的飞机大部件调姿内力[J].浙江大学学报:工学版,2010,44(8):1508-1513.
[10]袁荣娟.锥面联接零件设计计算[J].机械设计,2003(2):42-43.
[11]Baldanzini N.A general formulation for designing interference-fit joints with elastic-plastic components[J].Journal of Mechanical Design,2004,126(4):737-743.
[12]滕瑞静,张余斌,周晓军,等.圆柱面过盈连接的力学特性及设计方法[J].机械工程学报,2012,48(13):160-166.