拉文尼階 的英文怎麼說
中文拼音 [lāwénníjiē]
拉文尼階
英文
ravenian-
The tsar had also in attendance on him in no definite capacity, araktcheev, the late minister of war ; count bennigsen, by seniority the first of the generals ; the tsarevitch, konstantin pavlovitch ; count rumyantsev, the chancellor ; stein, the former prussian minister ; armfeldt, the swedish general ; pfuhl, the chief organiser of the plan of the campaign ; paulucci, a sardinian refugee, who had been made a general - adjutant ; woltzogen ; and many others
此外，在皇帝面前不帶職務的人員還有：阿拉克切耶夫前陸軍大臣，貝尼格森伯爵按官階是老將軍大將，皇太子梁斯坦j帕夫諾維哥大公，魯緬采夫伯爵一等文官，施泰因前普魯士部長，阿倫菲爾德瑞典將軍普弗爾作戰計劃的主要起草人，侍從武官巴沃魯契撒丁亡命者，沃爾佐根以及許多其他人。Base on review of existed study and application in suppressing cable vibration in the world, technique of mitigating cable vibration with viscous damper and mr damper has been investigated in this dissertation, and the main contents and progresses in form of summary are as following : 1 the motion differential equations of the cable - damper system are formatted, which take into account these factors, such as the inclined angle, sag, stiffness etc. coupling motion between cable and deck is studied with analytical and numerical method. numerical results show that large amplitude vibration of cable with beat rhythm will occur when exciting frequency of deck equals two times modal frequency of cable
本文在對國內外斜拉索振動控制研究與應用現狀進行綜合評述、分析的基礎上，針對上述問題進行了深入研究，具體的研究內容和取得的成果包括： 1 、建立了斜拉索-阻尼器系統運動方程，對拉索與橋面的耦合振動作了分析和研究，數值結果顯示當橋面激振頻率等於某階拉索模態頻率的兩倍時，很小的初始擾動將引起拉索的大幅振動，並呈現拍振的特徵，與實測的拍振信號一致。
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