基于视景仿真的联合收获机虚拟试验技术  

Virtual Test of Combine Harvester Based on Visual Simulation

作　　者：杨方飞[1] 阎楚良[1] 

机构地区：[1]中国农业机械化科学研究院土壤植物机器系统技术国家重点实验室,北京100083

出　　处：《农业机械学报》2011年第1期79-83,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金："十一五"国家科技支撑计划资助项目(2006BAD11A17)

摘　　要：在对轮式联合收获机作业过程中所受驱动力、行驶阻力以及作业阻力理论分析的基础上,建立轮胎模型、路面模型以及作业过程受力模型,并进行数值仿真,获得整机运动姿态曲线。基于视景仿真驱动平台,建立包括农田、道路、树木、草地等地表环境的逼真虚拟场景,并导入合理简化后的联合收获机整机视景仿真模型,利用Vega API编程接口实现整机在虚拟场景中的运动姿态交互控制,使视景仿真结果更符合实际,为研究联合收获机交互式集成虚拟试验平台打下基础。Driving force,driving resistance and operating resistance of wheeled combine harvester during operating process was analyzed,tire model,road model as well as force model was built,numerical simulation of motion for whole wheeled combine harvester was finished and attitude curve was obtained.Lifelike virtual scene including terrestrial surface environment,such as farm field,roads,trees,grassland,etc.was created.Visual model of wheeled combine harvester after reasonable simplified was imported to visual simulation driving platform,and interacting control of whole machine attitude in visual scene was put forward,which made visual simulation more realistic.This study laid the foundation of building interacting control integrated virtual testing platform for combine harvester.

关 键 词：轮式联合收获机 数值仿真 视景仿真 虚拟试验 

分 类 号：S225.31[农业科学—农业机械化工程] TP391.9[农业科学—农业工程]