| 移动磁场作用下的通电导线的非线性动力学分析 |
| |
| 引用本文： | 沈卫娜,程秀芳,杨志安.移动磁场作用下的通电导线的非线性动力学分析[J].河北理工学院学报,2009(2):49-54. |
| |
| 作者姓名： | 沈卫娜 程秀芳 杨志安 |
| |
| 作者单位： | 河北理工大学机械工程学院;唐山学院唐山市结构与振动工程实验室; |
| |
| 摘 要： | 研究输电线在磁场中谐扰力作用下的主共振问题,应用动力学方法建立磁场中受谐扰力作用输电线的非线性振动。根据非线性振动的多尺度解法,得到了系统满足主共振情况的近似解,并对其进行数值计算。分析磁场变化、外部激励、调谐值、阻尼等对系统的响应。得到系统失稳的临界磁场强度,指出力幅响应曲线存在跳跃现象。
|
| 关 键 词： | 输电线 非线性振动 多尺度法 磁场 主共振 |
Primary Resonance of Wire Subjected to Harmonic Excitation in Magnetic Field |
| |
| SHEN Wei-na,CHENG Xiu-fang,YANG Zhi-an.Primary Resonance of Wire Subjected to Harmonic Excitation in Magnetic Field[J].Journal of Hebei Institute of Technology,2009(2):49-54. |
| |
| Authors: | SHEN Wei-na CHENG Xiu-fang YANG Zhi-an |
| |
| Institution: | College of Mechanical Engineering;Hebei Polytechnic University;Tangshan Hebei 063009;China |
| |
| Abstract: | Primary resonance of wire subjected to harmonic excitation in magnetic field is studied.The nonlinear vibration equation of wire subjected to harmonic excitation in magnetic field is established by means of dynamics theory.According to the method of multiple scales for nonlinear vibration analysis,the approximation solution of primary resonance of the system is obtained.Numerical analysis on the influence of magnetic,excitation,detuning,and damping on the system is carried out.Critical broken magnetic value... |
| |
| Keywords: | wire nonlinear vibration the method of multiple scales primary resonance |
| 本文献已被 CNKI 维普 等数据库收录！ |
