基于信赖域算法的滑动导轨动力学优化设计
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摘要
针对农业运载工具中滑动导轨出现的卡槽和滚轮共振造成的损坏问题,对受迫运动工况下滚轮的三向受力和滑动机构平顺度进行研究,设计一种改进型导轨滚轮系统。用信赖域迭代算法对导轨曲率进行优化,将模型分割成一系列子区域,在该子区域的信赖域内对模型进行迭代近似求解,获得满足平顺性的导轨弯曲部分尺寸参数。在ADAMS中对导轨系统滑动单元倾斜振动情况和承力单元受迫运动情况进行仿真分析,给出滑动导轨优化后的判定数据。结果表明:采用分向受力的多滚轮设计可以有效分解每组导轨滚轮机构受到的作用力,承重轮在次坐标方向的受力低于主坐标方向的7.4%,导向轮在非转向段受力小于5N提高系统的平顺性和可靠性。
In view of the damage caused by the slipping of the slide rail and the resonance of the rollers in the agricultural vehicle.The three-dimensional force and the smoothness of the sliding mechanism under forced motion are studied.An improved rail roller system is designed.The system dynamics model is preliminarily analyzed in Matlab.In order to predict the vibration problem,the trust region iteration algorithm is used to optimize the curvature of the guide rail.The model is partitioned into a series of sub regions.The model is iteratively approximated in the trust region of the sub region.Obtain the size parameters of the guide rail bending part to satisfy the ride comfort.In ADAMS,the inclined vibration of sliding unit and forced motion of bearing unit of the guideway system are simulated and analyzed.The decision data after optimization of sliding guide rail are given.The results show that the force acting on each group of guide roller mechanism can be effectively decomposed by using the multi-roller design with separated forces.The load of the load wheel in the secondary coordinate direction is less than 7.4%of the main coordinate direction.The force of the guide wheel in the non steering section is less than 5 N.It greatly improves the ride comfort and reliability of the system.
In view of the damage caused by the slipping of the slide rail and the resonance of the rollers in the agricultural vehicle.The three-dimensional force and the smoothness of the sliding mechanism under forced motion are studied.An improved rail roller system is designed.The system dynamics model is preliminarily analyzed in Matlab.In order to predict the vibration problem,the trust region iteration algorithm is used to optimize the curvature of the guide rail.The model is partitioned into a series of sub regions.The model is iteratively approximated in the trust region of the sub region.Obtain the size parameters of the guide rail bending part to satisfy the ride comfort.In ADAMS,the inclined vibration of sliding unit and forced motion of bearing unit of the guideway system are simulated and analyzed.The decision data after optimization of sliding guide rail are given.The results show that the force acting on each group of guide roller mechanism can be effectively decomposed by using the multi-roller design with separated forces.The load of the load wheel in the secondary coordinate direction is less than 7.4%of the main coordinate direction.The force of the guide wheel in the non steering section is less than 5 N.It greatly improves the ride comfort and reliability of the system.
引文
[1]檀律科,胡良龙,郑砚砚.乡村振兴战略视角下我国农业机械科技成果转化现状研究[J].中国农机化学报,2018,39(7):90-93.Tan Lvke,Hu Lianglong,Zheng Yanyan.Research on status of technological achievement of agriculture machine commercialization in the view of rejuvenating rural area strategy[J].Journal of Chinese Agricultural Mechanization,2018,39(7):90-93.
[2]金雪婷,曹光乔.农用地平整工程与农机作业的关系综述[J].中国农机化学报,2018,39(3):97-102.Jin Xueting,Cao Guangqiao.Review on relationship between farmland leveling engineering and agricultural machinery operation[J].Journal of Chinese Agricultural Mechanization,2018,39(3):90-93.
[3]周艳丽,卢秉福.农田机械压实对土壤物理特性的影响[J].中国农机化学报,2018,39(9):66-70.Zhou Yanli,Lu Bingfu.Influence on soil physical properties for farmland mechanical compaction[J].Journal of Chinese Agricultural Mechanization,2018,39(9):66-70.
[4]尹纯源,王卓,白晓平,等.基于模糊PID变阻尼方法的农机自动转向控制系统研究[J].中国农机化学报,2016,37(11):111-115.Yin Chunyuan,Wang Zhuo,Bai Xiaoping,et al.Research of automatic steering control system on agricultural machinery based on variable damping ratio control by fuzzy PID[J].Journal of Chinese Agricultural Mechanization,2016,37(11):111-115.
[5]徐竹凤,薛新宇,崔龙飞,等.农田地面振动谱的研究综述[J].中国农机化学报,2016,37(7):251-255.
[6]郭克尖.滑动导向系统摩擦建模及动力学研究[D].上海:上海交通大学,2008.
[7]成建平,杨家军,程远雄,等.滚柱直线导轨结合面的振动分析[J].机电工程,2013,30(3):296-299.
[8]Alipour H,Sharifian M B B,Afsharirad H.A PID sliding mode control for ropeless elevator maglev guiding system[J].Energy and Power Engineering,2012,4(3):158.
[9]陈国栋,韩旭.基于代理模型的多目标优化方法及其在车身设计中的应用[J].机械工程学报,2014(9):70.
[10]Moncef Abbas,Fatima Bellahcene.Cutting plane method for multiple objective stochastic integer linear programming[J].European Journal of Operational Reasearch,2006,168(3):967-984.
[11]Baoding Liu,Kakuzo Iwamura.Fuzzy programming with fuzzy simulation-based genetic algorithm[J].Fuzzy Sets and Systems,2001,122:253-262.
[12]Khokhar Z O,Vahabzadeh H,Ziai A,etal.On the performance of the psp method for mixed-variable multi-objective design optimization[J].Journal of Mechanical Design,2010,132(7):1-11
[13]温乃盟.宝钢汽车用无机润滑热镀锌钢板的特性[J].宝钢技术,2017(5):33-38.
[14]Jiang C,Han X,Liu G P.A sequential nonlinear interval number programming method for uncertaimstructures[J].Computer Methods in Applied Mechanics and Engineering,2008,197(49-50):4250-4265.
[15]Liu G P,Han X,Jiang C.A novel multi-objective optimization method based on an approximation model management technique[J].Computer Methods in Applied Mechanics and Engineering,2008,197(33-40):2719-2731.
[2]金雪婷,曹光乔.农用地平整工程与农机作业的关系综述[J].中国农机化学报,2018,39(3):97-102.Jin Xueting,Cao Guangqiao.Review on relationship between farmland leveling engineering and agricultural machinery operation[J].Journal of Chinese Agricultural Mechanization,2018,39(3):90-93.
[3]周艳丽,卢秉福.农田机械压实对土壤物理特性的影响[J].中国农机化学报,2018,39(9):66-70.Zhou Yanli,Lu Bingfu.Influence on soil physical properties for farmland mechanical compaction[J].Journal of Chinese Agricultural Mechanization,2018,39(9):66-70.
[4]尹纯源,王卓,白晓平,等.基于模糊PID变阻尼方法的农机自动转向控制系统研究[J].中国农机化学报,2016,37(11):111-115.Yin Chunyuan,Wang Zhuo,Bai Xiaoping,et al.Research of automatic steering control system on agricultural machinery based on variable damping ratio control by fuzzy PID[J].Journal of Chinese Agricultural Mechanization,2016,37(11):111-115.
[5]徐竹凤,薛新宇,崔龙飞,等.农田地面振动谱的研究综述[J].中国农机化学报,2016,37(7):251-255.
[6]郭克尖.滑动导向系统摩擦建模及动力学研究[D].上海:上海交通大学,2008.
[7]成建平,杨家军,程远雄,等.滚柱直线导轨结合面的振动分析[J].机电工程,2013,30(3):296-299.
[8]Alipour H,Sharifian M B B,Afsharirad H.A PID sliding mode control for ropeless elevator maglev guiding system[J].Energy and Power Engineering,2012,4(3):158.
[9]陈国栋,韩旭.基于代理模型的多目标优化方法及其在车身设计中的应用[J].机械工程学报,2014(9):70.
[10]Moncef Abbas,Fatima Bellahcene.Cutting plane method for multiple objective stochastic integer linear programming[J].European Journal of Operational Reasearch,2006,168(3):967-984.
[11]Baoding Liu,Kakuzo Iwamura.Fuzzy programming with fuzzy simulation-based genetic algorithm[J].Fuzzy Sets and Systems,2001,122:253-262.
[12]Khokhar Z O,Vahabzadeh H,Ziai A,etal.On the performance of the psp method for mixed-variable multi-objective design optimization[J].Journal of Mechanical Design,2010,132(7):1-11
[13]温乃盟.宝钢汽车用无机润滑热镀锌钢板的特性[J].宝钢技术,2017(5):33-38.
[14]Jiang C,Han X,Liu G P.A sequential nonlinear interval number programming method for uncertaimstructures[J].Computer Methods in Applied Mechanics and Engineering,2008,197(49-50):4250-4265.
[15]Liu G P,Han X,Jiang C.A novel multi-objective optimization method based on an approximation model management technique[J].Computer Methods in Applied Mechanics and Engineering,2008,197(33-40):2719-2731.