水田激光平地机平地铲姿态调整机构优化设计  

Optimum Design of Attitude Adjustment Mechanism of Laser Grader Applied to Paddy Field

作　　者：孙启新[1] 陈书法[1] 杨进[1] 芦新春[1] 

机构地区：[1]淮海工学院机械工程学院,江苏省连云港市222005

出　　处：《农业装备与车辆工程》2015年第10期13-16,共4页Agricultural Equipment & Vehicle Engineering

基　　金：苏北科技发展计划项目(BN2014020);连云港市农业攻关项目(CN1413)

摘　　要：激光平地机在农业生产中的应用越来越广,提高平地铲姿态调整系统的响应速度,是保证激光平地机作业精度的关键因素之一。针对水田平地机的特点,运用ADAMS对平地铲姿态调整机构进行优化设计。以主要构件长度尺寸为设计变量,以平地铲竖直方向运动速度最大为优化目标,借助ADAMS进行参数化建模,并构建约束条件和目标函数。通过仿真优化,获得平地铲速度与设计变量的最优值。试验验证,仿真优化结果可行,经过优化设计平地铲完成上升和下降全程的响应时间分别为0.75 s和0.6 s,上升阶段响应速度提高了400%,下降阶段提高了150%。Laser grader is used more and more widely in paddy production. Improving the response speed of the attitude adjustment system is one of the key factors to guarantee the production accuracy of the machine. Optimum design of attitude adjustment mechanism was carried out by ADAMS according to the characteristics of paddy field graders. First, the length of main components was defined as design variables, and the velocity of spade as design objective. Second, the objective function of the mechanism was constructed, and relations between variables and objective were defined based on ADAMS. The optimum values of spade velocity and design variables were got by mechanism simulation. Lastly, test was designed to verify the simulation results, which showed that the results were reliable. The overall response time of rising and dropping phase was respectively 0.75s and 0.6s, and the velocity of response increased by 400% and 150%.

关 键 词：激光平地机 姿态调整 优化设计 ADAMS 

分 类 号：S222.51[农业科学—农业机械化工程]