|
|||||
|
|
| 结晶器振动周期时变参数系统动力学特性分析 | |
| 引用本文： | 张立平,汪建晓,吴彦东,李晓丹. 结晶器振动周期时变参数系统动力学特性分析[J]. 机械设计, 2011, 28(10) |
| 作者姓名： | 张立平 汪建晓 吴彦东 李晓丹 |
| 作者单位： | 1. 佛山科学技术学院机电与信息工程学院,广东佛山,528000 2. 美的商用空调设备有限公司研发中心技术研究所,广东佛山,528311 3. 秦皇岛职业技术学院,河北秦皇岛,066004 |
| 摘 要： | 对新型结晶器非正弦振动系统进行动力学分析,建立该系统的弹性动力学模型,并推导其运动微分方程。研究表明,该系统是周期时变参数系统,其质量矩阵、刚度矩阵和阻尼矩阵都随时间周期性变化。基于此,采用瞬时机构凝固法对该周期时变系统的固有特性进行分析,结果表明,随逆平行四连杆机构主动曲柄位置和非正弦波形偏斜率的变化,系统的固有频率变化较大。文中还分析了系统的工作频率、结晶器的振幅及构件的参数和刚度对其固有特性的影响。为逆平行四连杆驱动的非正弦振动系统的优化设计及应用提供了理论依据。 |
| 关 键 词： | 连铸 非正弦振动 周期时变参数系统 固有特性 |
Dynamic characteristics analysis on the periodical time-varying parameter system for the mold |
|
| ZHANG Li-ping,WANG Jian-xiao,WU Yan-dong,LI Xiao-dan. Dynamic characteristics analysis on the periodical time-varying parameter system for the mold[J]. Journal of Machine Design, 2011, 28(10) | |
| Authors: | ZHANG Li-ping WANG Jian-xiao WU Yan-dong LI Xiao-dan |
| Affiliation: | ZHANG Li-ping1,WANG Jian-xiao1,WU Yan-dong2,LI Xiao-dan3(1.The Mechatronics and Information Engineering School,Foshan University,Foshan 528000,China,2.Technology Research Institute of Research and Development Center,Midea Commercial Air-conditioning Equipement Co.,Ltd,Foshan 528311,3.Qinhuangdao Institute of Technology,Qinhuangdao 066004,China) |
| Abstract: | After carrying out dynamics analysis on non-sinusoidal oscillation system of a novel mold,the elastodynamics model of this system is established,and the differential equations of motion are deduced.The results show this system is of a periodical time-varying system with its mass matrix,stiffness matrix and damping matrix varying with time periodically.Further more,the natural characteristics analysis of the periodical time-varying system are done based on the instantaneous mechanism-solidified method.Its re... |
| Keywords: | continuous casting non-sinusoidal oscillation periodical time-varying parameter system natural characteristics |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |