研究了在简谐激励作用下复合材料加筋板基体微裂纹损伤的演化行为及其对加筋板动力特性的影响。
The matrix damage evolution behavior and the effect of matrix micro-cracks on the dynamic characteristics of composite stiffened delaminated plates are studied.
简谐振动是振动的基础。本文讨论了简谐振动的特点，简谐振动的定义以及普通物理力学中振动与理论力学中的微振动之间的关系。
The characteristics and definition of simple harmonic motion are discussed, and the relationship between vibration in general physics mechanics and micro-vibration in theoretical mechanics as well.
为了验证微挠度桥梁实现的可能性，作者设计微挠度简支梁模型并实现了上述的控制思路。
To illustrate the idea of such a smart prestressing system, a model with the self-adapted function is designed and tested, in which the simply supported girder bridge is applied.
应用简正波传播时间与声速起伏的对应微扰关系式，给出了上述对应关系的理论解释。
The relation equations between Normal Mode propagation travel-time and sound-speed fluctuation are used to explain the qualitatively relationship between two spectra.
研究正弦力场下的随机行走问题，是解释系统对于简谐微扰的响应的关键。
It is crucial to study the random walk behavior under a sinusoidal force field for the explanation of the response of system under harmonic disturbances.
研究正弦力场下的随机行走问题，是解释系统对于简谐微扰的响应的关键。
It is crucial to study the random walk behavior under a sinusoidal force field for the explanation of the response of system under harmonic disturbances.
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