复式播种单元3D模型参数化数字资源研究  

Parametric digital resources research on 3D model of compound seeding unit

作　　者：刘宏新[1] 周向荣[1] 李蓉[1] 周兴宇[1] 宋微微[1] 

机构地区：[1]东北农业大学工程学院,哈尔滨150030

出　　处：《东北农业大学学报》2014年第12期105-111,共7页Journal of Northeast Agricultural University

基　　金：黑龙江省教育厅科学技术研究项目(12521023)

摘　　要：为基于装配约束的部件参数化设计提供便捷准确的解决方案,深入研究在装配体中运用参数化设计的实施方法。以一种复式播种单元为研究对象,在对其进行功能模块划分的基础上,建立该播种单元的CATIA数字样机,对零部件进行参数化建模,以功能模块为单位对各零部件进行逐层参数关联,通过核心部件排种盘直径进行驱动,实现播种单元在农艺及特征结构约束与要求下的关联变化。理论研究与仿真驱动表明,核心尺寸驱动的层次化关联是产品参数化设计有效实施途径,可作为装备数字化资源库的核心基础支撑技术,也可为产品高效研发提供一种现代化的解决方案。In order to provide rapid and effective solution for parametric design based on assembly constraint, studied deeply on a method for the parametric design in an assembly. Taking a compound seeding unit as an object of study, based on its module division, built a CATIA digital prototype of the seeding unit, made the parametric design on parts, made layer-by-layer parameter association for various parts by taking the module as unit, and realized the association change of the seeding unit according to agriculture and structural requirements under the drive of the diameter of a core part—seed-plate. The study shows that hierarchical relation of core dimension driver is an effective way to realize the product parametric design, which as the core and basic support technology, and provides a rapid and feasible modernized solution for product design.

关 键 词：播种单元 3D模型 CATIA 参数化 

分 类 号：TP393.4[自动化与计算机技术—计算机应用技术]