基于ADAMS的巨菌草茎秆蠕变特性研究  

Research of pennisetum sp.stem creep characteristics based on ADAMS

作　　者：童向亚 郑书河[1] 朱舟[1] 林长山[1] 梁晓[1] 叶大鹏[1] 

机构地区：[1]福建农林大学机电工程学院,福州市350002

出　　处：《中国农机化学报》2015年第5期117-120,133,共5页Journal of Chinese Agricultural Mechanization

基　　金：福建省科技重大专项资助项目(2014NZ0002-1);国家菌草工程技术研究中心开放基金项目(JCJJ14002);校高水平大学建设重点项目(612014017)

摘　　要：运用蠕变保压历程变化方程对试验所获取的蠕变数值进行拟合,获取巨菌草茎秆弹性模量、粘性系数等建立巨菌草流变模型的关键参数,基于ADAMS虚拟样机平台并结合流变学Burgers四元模型建立巨菌草茎秆蠕变仿真模型,通过模型的仿真试验得出蠕变过程中时间—应变变化曲线,对比物理试验和虚拟样机仿真蠕变特性时间—应变曲线,进一步分析两曲线的波动误差和误差原因,验证了运用Burgers四元模型结合ADAMS虚拟样机平台进行巨菌草蠕变特性研究的可行性,为设计制造有关巨菌草的收获、加工、贮藏、包装、运输等各种机械提供相关的设计依据。The creep characteristic data obtained in experiment was fitted by creep course variation equation of pressure-maintaining. Modulus of elasticity, viscosity coefficient and the other factors that are indispensable for building a Pennisetum sp. stem rheological model were acquired. Based on ADAMS virtual prototype platform, combining with rheological Burgers quaternion model, Penniseturn sp. stem creep simulation model was established, and the time - strain curve in the process of creep was got through the model simulation experiments. Comparison of time - strain curve simulation on virtual prototype with the physical test and further analysis of volatility and error reason verified the feasibility of the study of Pennisetum sp. stem creep properties with Burgers quaternion model on ADAMS virtual prototype platform, which provides the related design basis for the design and manufacture of Pennisetum sp. harvesting, processing, storage, packaging, transportation and other machinery.

关 键 词：ADAMS 巨菌草 蠕变 仿真 

分 类 号：S23-0[农业科学—农业机械化工程]