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sympathetic vibrations 【物理學】共振。

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And the following conclusion was got : generally , the existence of particles would limit and retard the developing of the coherent structure of the turbulent fields ; but when the mass loading is a little high , the existence of particles would promote the developing of the turbulent field ; at the same time , the gas flow field would enhance the particles “ dispersion . at this time , the interaction between the two phased would promote each other . this phenomenon is just like the “ sympathetic vibration “ in mechanical engineering 認為:在一般條件下顆粒的存在會限制、遲滯流場的發展;但對于質量2002年6月?金晗輝摘要攜帶率較高的情況,在流場發展到一定程度以后顆粒的反作用會促進流場的發展;反之,在顆粒質量攜帶率較高的情況下,受顆粒反作用的氣相流場又會加強顆粒在流場空間中的擴散,揭示出氣粒兩相相間作用在一定的顆粒質量攜帶率條件下存在“共振現象” 。

Some conclusions are drawn : 1 ) effect of inertial force from superstructures on the lateral seismic response of single pile can not be ignored ; 2 ) the lateral seismic response of single pile induced by far - field earthquake are mainly affected by acceleration mass of superstructure > site eigenperiod . it increases with the increment of accele ration and mass of superstructure . as the site characteristic frequency approaches the self - oscillation frequency of the pile , sympathetic vibration occurs and the value of lateral seismic response reaches maximum ; 3 ) as the stiffness ratio of pile to soil increase , the relative displacement of pile to soil increases ; 4 ) the lateral seismic response of fixed - head pile is much smaller than that of free - head pile 將其解析解與具體的的抗震設防烈度和場地特征周期結合起來,計算分析了成層地基中單樁的橫向地震響應,得到了以下結論: 1 )上部結構慣性力對樁的橫向地震響應的影響不可忽略; 2 )成層地基中的單樁的橫向地震響應主要受地震基本加速度、場地特征周期、上部結構質量的影響,隨地震基本加速度、上部結構質量的增大而增大;場地特征頻率越接近樁基自振頻率,樁基地震響應越大,等于自振頻率時,由于發生共振現象,樁基響應幅值最大; 3 )樁土剛度比越大,樁土之間的相對位移的幅值越大; 4 )樁頂固接的連接方式,可以有效地降低地震時單樁的橫向地震響應。

In the during , the cultivation of the students “ creative thought must keep the following principles : firstly , the one of the activation of information , secondly , the one of the sympathetic vibration of wisdom , thirdly , the one of the combination between the emanative thought and the aggregate thought , fourthly , the one of self - inspiration . if you are able to grasp such four principles , then you can carry your reading on , and improve your level of the creative thought gradually 這些都為創造性思維的培養提供了可行性的條件。在閱讀教學中培養學生的創造性思維,必須遵循一定的原則:一是信息激活原則;二是智慧共振原則;三是發散思維與聚合思維相結合原則;四是自我激勵原則。把握這四項原則,不僅可以確保閱讀教學順利開展,更可以促進學生創造性思維的水平不斷提高。

The sympathetic vibration of a circuit to a signal 一個電路對某一個信號共鳴的振蕩。