摘要
纵向轴流联合收获机因其在脱净率、破碎率、分离率等方面的优势近年来得到大力推广。以纵向轴流滚筒为研究对象,在合理假设的基础上,对谷物运动受力状态加以分析,根据给出的谷物喂入段、脱离分离盖板侧及凹板侧各段的运动状态非线性微分方程,采用高阶龙格库塔数值方法,开发出谷物脱粒过程运动状态分析软件,对谷物运动状态进行数值仿真。对比高速摄像试验分析结果,验证了数值仿真结果的有效性,为纵向轴流滚筒的设计提供了依据。
Combine harvester with axial feeding threshing roller was rapidly popularized in recent years due to its high threshing rate,low broken rate and high separating rate.The movement of cereal passing through the axial feeding threshing roller was analyzed based on reasonable assumptions.According to the nonlinear equations of cereal motion in each sector,feeding zone,concave side and cover side of threshing-separating zone,software which could analyze cereal state of motion was developed based on numerical method of high order RungeKutta.The effectiveness of numerical simulation result was verified compared with high-speed photography testing results.This study laid the foundation for the design of axial feeding threshing roller.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2010年第12期67-71,88,共6页
Transactions of the Chinese Society for Agricultural Machinery
基金
"十一五"国家科技支撑计划重大项目(2006BAD11A01)
关键词
联合收获机
纵向轴流脱粒
运动状态
仿真
高速摄像
Combine harvester
Threshing with axial feeding
Motion state
Simulation
High-speed photography
