气动振动精密排种器试验研究及虚拟样机设计  

Pneumatic Vibration Precision Seed-metering Experimental Research and Virtual Prototype Design

作　　者：王淑铭[1] 魏天路[1] 周海波[1] 

机构地区：[1]佳木斯大学机械工程学院,黑龙江佳木斯154007

出　　处：《农机化研究》2011年第6期62-65,共4页Journal of Agricultural Mechanization Research

基　　金：黑龙江省自然科学基金项目(E200841);佳木斯大学研究生创新基金项目(YJSCX2009-003JD)

摘　　要：通过对气动振动式精密排种器的分析,建立了试验模型,并进行试验;在简化振动模型的基础上,在Mat-lab中利用试验数据进行振动仿真,初选了系统振动刚度系数及阻尼系数等参数。将由Pro/E建立的排种器三维模型导入ADAMS中,建立了虚拟样机;针对虚拟样机仿真结果与试验数据的差异,在六自由度上对系统的刚度及阻尼进行了参数化设计,得到了不同方向上刚度、阻尼系数对系统振动位移的影响,并优选了虚拟样机的刚度和阻尼,使虚拟样机更加完善,为进一步利用虚拟样机进行工作参数的优选打下了重要基础。By analyzing the pneumatic vibration Precision seed metering device,the paper establishes an experimental model;On the basis of simplifying the vibration model and simulating vibration in MATLAB with experimental data,the paper gets the preliminary vibration stiffness and damping parameters of the seed-metering device.By introducing three dimensional model established via Pro/E into ADAMS,sets up a virtual prototype.As for the difference between the virtual prototype simulation and the experiment,the paper takes a parameterized design for the stiffness and damping in the six degrees of freedom and then gets to know the influence to the systematic vibration displacement made by the stiffness and damping in different directions.In order to perfect virtual prototype,the paper optimizes the stiffness and damping,thus laying the foundation of optimizing the parameters by the virtual prototype.

关 键 词：排种器 试验 虚拟样机 优化设计 

分 类 号：S223.25[农业科学—农业机械化工程] S126[农业科学—农业工程]