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equivalent linear stiffness
相关语句
  等效线性刚度
     The equivalent linear stiffness and damping depending on the vi-bration amplitude were studied.
     其中包含有取决于振幅的等效线性刚度和阻尼。
短句来源
     The result shows that no matter how complex the expression of restoring force-displacement is ,the equivalent linear stiffness of the system can be easily obtained by using the bilinear approximation method, and then,the approximate solution of natural frequency of the system can be achieved .
     结果表明,不管恢复力-位移表达式多么复杂,应用双线性近似方法都可以 方便地求得结构的等效线性刚度,进而获得结构固有频率的近似解。
短句来源
  相似匹配句对
     the equivalent of E.
     E.
短句来源
     The Equivalent Method and Principle
     等效方法与等效原理
短句来源
     Equivalent Linearization of Nonlinear Forces
     非线性力的等效线性化
短句来源
     And thesection is decided by the stiffness.
     井字梁的截面往往由刚度控制。
短句来源
     BaseOn the stiffness of the wire.
     针对大截面导线架空线路。
短句来源
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In this paper single piles under strong vertical excitation was considered asa nonlinear system with one degree of freedom and a nonlinear differentialequation in the form of mass-dashpot-spring in terms of equivalent linearizationwas given. The equivalent linear stiffness and damping depending on the vi-bration amplitude were studied. The vibration parameters were backcalculatedusing the geometric properties of dynamic response curves, and dynamic exper-iments were conducted on large-scale model piles...

In this paper single piles under strong vertical excitation was considered asa nonlinear system with one degree of freedom and a nonlinear differentialequation in the form of mass-dashpot-spring in terms of equivalent linearizationwas given. The equivalent linear stiffness and damping depending on the vi-bration amplitude were studied. The vibration parameters were backcalculatedusing the geometric properties of dynamic response curves, and dynamic exper-iments were conducted on large-scale model piles in sand for verifying thetheory. This analysis method is very convenient and is available to the parame-ters study for soil-pile system.

本文将承受强烈垂直激振作用的单桩作为非线性单自由度体系考虑,采用等效线性化方法,列出质量-阻尼-弹簧模式的非线性振动微分方程。其中包含有取决于振幅的等效线性刚度和阻尼。利用动力反应曲线的几何性质反演计算各振动参数,并且以砂坑中大尺寸模型桩的动力试验量测结果进行验证。这种实用分析方法很简便,对于桩-土系统振动参数的研究是很有效的。

Some aspects of nonlinear free vibration of bimodular structures behaving dissimilarly in tension and in compression are studied .The exact solutions of frequency of nonlinear free vibration for a single degree of freedom system with restoring force described by three straight lines with different slopes are given. The bilinear approximation method is applied to solve the frequency of nonlinear free bibration for both bimodular system with gaps and that without gap. The result shows that no matter how complex...

Some aspects of nonlinear free vibration of bimodular structures behaving dissimilarly in tension and in compression are studied .The exact solutions of frequency of nonlinear free vibration for a single degree of freedom system with restoring force described by three straight lines with different slopes are given. The bilinear approximation method is applied to solve the frequency of nonlinear free bibration for both bimodular system with gaps and that without gap. The result shows that no matter how complex the expression of restoring force-displacement is ,the equivalent linear stiffness of the system can be easily obtained by using the bilinear approximation method, and then,the approximate solution of natural frequency of the system can be achieved .The practicability of the bilinear approximation method for a class of structure with different tension and compression behavior in the engineering field is verified by the comparison between exact solutions and approximation ones.

对拉压特性不同的双模量结构的非线性自由振动进行了研究。给出了恢复力-位移曲线由三段斜率不 同的直线构成的单自由度系统自由振动频率的精确解。应用双线性近似方法讨论了有间隙双模量结构和无间隙双模量 结构非线性自由振动频率的近似求解问题。结果表明,不管恢复力-位移表达式多么复杂,应用双线性近似方法都可以 方便地求得结构的等效线性刚度,进而获得结构固有频率的近似解。通过近似计算结果与精确解之间的比较,验证了双 线性近似方法对于工程中大量存在的一类具有不同拉压特性的结构进行振动分析的实用性。

 
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