inherent damping 中文意思是什麼
inherent damping
解釋
固有阻尼-
Stay cables of the long - span cable - stayed bridges are susceptible to vibration under wind loading, or wind incorporated rain excitation, or deck motion due to high flexibility, relatively small mass and very low inherent damping, such as vortex shedding, wake galloping, parameter resonance and wind - rain induced vibration. large - amplitude vibration of cables may reduce the life of cables and threaten safe traffic, and has been considered today as one of the most critical problems for this type of bridge
大跨度斜拉橋拉索具有較小的質量和極低的阻尼，在風、風雨及橋面振動等外部激勵下極易發生振動，如渦激共振、尾流馳振、參數共振和風雨振等，拉索的大幅振動對拉索的使用壽命和橋梁安全運營構成極大威脅，它已成為大跨度斜拉橋急需解決的關鍵問題之一。 -
It is shown that vibration suppression efficiency of these kind of treatments depend much more on the viscoelastic layer thickness, material properties and the piezoelectric layer thickness. secondly, a linear quadratic regulator and output feedback are used to actively control vibration. it is shown that placing the active element on the opposite side of pcld or underneath pcld is capable of vibration suppression with lower control effort and more inherent damping
定義了主被動混合阻尼結構控制性能指標：被動抑振性能指標、主動抑振性能指標、控制能量指標和控制力性能指標；然後，基於狀態反饋最優控制律，根據定義的控制性能指標分析粘彈性阻尼層厚度、粘彈性阻尼材料參數、壓電作動層厚度對主被動混合阻尼結構振動控制性能的影響，得到了一些有價值的結論。
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