基于传递矩阵法的振动压实系统动力学分析  

Dynamic Analysis Based on Transfer Matrix for Vibration-Compaction System

作　　者：刘杨[1] 刘挺[1] 冯霏[1] 闻邦椿[1] 

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2010年第1期96-98,118,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(50535010)

摘　　要：振动压实系统在工作过程中,物料受到压实作用而发生弹塑性形变,因而该系统的弹性回复力与位移关系呈现非线性与滞后性.为研究振动压实系统的动力学问题,建立了带有分段曲线不对称滞回环的二自由度系统模型,采用传递矩阵法求解该模型,对该模型中各单元的状态进行相关的数学描述,同时利用仿真软件对数据进行分析,得到的数据与传递矩阵方程的计算结果基本吻合.这表明所提出振动压实系统的传递矩阵模型接近实际情况,对相关系统的动力学分析具有参考价值.When the vibration-compaction system works,the materials used are deformed plastically under compaction,then the relationship between elastic resilience and displacement of the system presents nonlinearity and hysteresis. To study the dynamic characteristics of a vibration-compaction system,a 2-DOF model with piecewise curves and asymmetric hysteresis loop was developed,to which a solution introducing the transfer matrix was given. Describing what states every element is in mathematically in the model and analyzing all the data with simulation software,the results showed that the data thus obtained basically coincide with that computed by the transfer matrix equation,i.e.,the transfer matrix model we developed approaches to actualities,thus providing an important reference for the dynamic analysis of relevant systems.

关 键 词：传递矩阵 传递方程 滞回环 不对称滞回系统 振动压实 

分 类 号：TU66[建筑科学—建筑技术科学] TH113.1[机械工程—机械设计及理论]