| 弹簧振子非线性振动分析及应用 |
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| 引用本文： | 吕福和. 弹簧振子非线性振动分析及应用[J]. 上海第二工业大学学报, 2009, 26(3): 223-227 |
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| 作者姓名： | 吕福和 |
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| 作者单位： | 上海第二工业大学理学院,上海,201209 |
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| 摘 要： | 利用积分法分析了弹簧振子非线性振动的周期、频率、振幅等力学特征值，在稳态的情况下计算了对称非线性振动的杜芳方程的频率特性，并通过逐步积分法分析了框架结构在冲击载荷作用下的弹塑性振动。数值算例说明了弹簧振子模型对求解非线性振动的实效性。
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| 关 键 词： | 弹簧振子 非线性振动 积分法 逐步积分法 |
Analysis and Application for the Nonlinear Vibration of Spring Oscillator |
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| LU Fu-he. Analysis and Application for the Nonlinear Vibration of Spring Oscillator[J]. Journal of Shanghai Second Polytechnic University, 2009, 26(3): 223-227 |
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| Authors: | LU Fu-he |
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| Affiliation: | LU Fu-he ( School of Science, Shanghai Second Polytechnic University, Shanghai 201209, P.R.China ) |
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| Abstract: | In integral method the mechanic characters of spring oscillator nonlinear vibration are analyzed, such as period, frequency and swing, and in steady-state condition the frequency of Duffing equation for symmetric nonlinear oscillator is calculated. Besides, basing on step-integral, this paper also studies the spring vibration of framework, when it is impacted by concussion and electric charge. The numerical equations illuminate the validity of spring-oscillator model, in case of parsing the nonlinear vibration. |
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| Keywords: | spring oscillator nonlinear vibration integral step-integral |
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