拉索內 的英文怎麼說
中文拼音 [lāsuǒnèi]
拉索內
英文
lasone-
St andrews university researchers studying in sarasota bay off florida ' s west coast florida discovered bottlenose dolphi used names rather than sound to identify each other
英國聖安德魯大學的研究人員們在位於佛羅里達西海岸的薩拉索塔灣進行了此項研究,發現寬吻海豚並非通過嗓音,而是通過「名字」 (叫聲的內容)來識別對方。St andrews university researchers studying in sarasota bay off florida ' s west coast florida discovered bottlenose dolphins used names rather than sound to identify each other
英國聖安德魯大學的研究人員們在位於佛羅里達西海岸的薩拉索塔灣進行了此項研究,發現寬吻海豚並非通過嗓音,而是通過「名字」 (叫聲的內容)來識別對方。Stays are continuous over saddles in the pylon.
拉索連續跨過塔架內的索鞍。Each stay is composed of 25-5/8 in diameter dywidag bars encased in a metal sheath.
每根拉索由25根直徑為58英寸(16毫米)的迪威達格式粗鋼筋組成,拉索套在金屬套管內。The detailed explication of wind induced vibrations of cables, the method of vibration reduction used in practical projects and the recent progresses in researches are introduced
本文闡述了斜拉索各種風振形式的振動機理和實際工程中常用的減振方法以及國內外該領域目前的研究狀況。A movable temporary stay arrangement must be used to limit the cantilever stresses during construction to a reasonable level.
必須採用一個可移動的臨時拉索裝置將施工過程中的懸臂應力限制在合理的范圍之內。Changes in strand tension can be easily determined if the bridge deck is resurfaced.
當橋面重新鋪裝時,易於確定鋼索內拉力的變化情況。St andrews university researchers studying in sarasota bay off florida ' s west coast florida discovered bottlenose dolphins used names rather than sound to identify each other. the three - year - study was funded by the royal society of london
英國聖安德魯大學的研究人員們在位於佛羅里達西海岸的薩拉索塔灣進行了此項研究,發現寬吻海豚並非通過嗓音,而是通過「名字」叫聲的內容來識別對方。In each sloping plane the stays take the following strand pattern.
在每一個傾斜索麵內,拉索按以下的形式布置。Amongst us you will not meet with any of those episodes with which your adventurous existence has so familiarized you ; our chimborazo is mortmartre, our himalaya is mount valerien, our great desert is the plain of grenelle, where they are now boring an artesian well to water the caravans
在我們這里,您遇不到任何在您的冒險生活里常常遇到的那種插曲。馬特山就是我們的琴博拉索山,凡爾靈山就是我們的喜馬拉雅山,格勒內爾平原就是我們的戈壁大沙漠,而且他們現在正在那兒掘一口自流井,以便沙漠里的旅客能有水吃。Each stay is composed of 25 - 58 in diameter dywidag bars encased in a metal sheath
每根拉索由25根直徑為5 8英寸( 16毫米)的迪威達格式粗鋼筋組成,拉索套在金屬套管內。Each stay is composed of 25 - 5 / 8 in diameter dywidag bars encased in a metal sheath
每根拉索由25根直徑為5 8英寸( 16毫米)的迪威達格式粗鋼筋組成,拉索套在金屬套管內。Nonlinearly natural vibration characteristic analysis of inclined cable in plane
斜拉索在平面內的非線性固有振動特性分析The 1 : 1 internal resonance of the stay cable coupling the in - plane and out - of - plane modes is analyzed
本文對斜拉索的1 : 1面內、外模態耦合內共振進行了研究。The theme get the integration between design of the large highway bridge in anqing and theory studying, carry out an research in emulating calculation of steel box beam cable - stay bridge. the theme used the transfer - matrix in solving computing of cable - stay bridge structure, got a improving in computing of cable and the load and landed of cable strength
針對鋼箱粱斜拉橋的特性,論文確定了以控制箱粱梁端位移與拉索內力為調整目標,利用循環的正裝過程對斜拉橋的模擬進行計算,並對索塔的塔頂位移進行了良好的控制。Taking the sucessful control experiences in previous cable - stayed bridge construction into consideration, the control principles and methods for gonghe bridge, that is controling the stress of both the top and bottom sides of main beam, regarding the second stretching as the hauling cable force method, are offered, and related construction procedures for all construction stages are designed
在總結前人對斜拉橋施工控制經驗的基礎上,針對公和斜拉橋施工控制提出了相應的控制原則和方法,即以「控制主樑上下緣應力」為主梁內力控制原則,以「二次張拉」為斜拉索索力控制的方法,並根據各施工階段的具體需要設計相應的施工步驟。The precise fe model was used to predict the factors of load - carrying capacity of the controlled sections of the box - girder, by selecting some important factors which can affect the load - carrying capacity, such as the area of cables, stiffness of expanding joints, elastic modulus of concrete, and the amount of living load, to simulate the several possible damages of the bridge in service in the future
( 3 )該橋在運營四年後,索力、撓度、應力與主塔偏位都在設計允許的范圍內,大橋依然具備通行設計汽車荷載的能力。 ( 4 )對該橋承載力的預測分析表明:在所分析的可能損傷狀態下,拉索具有足夠的安全系數,損傷對控制截面的承載能力系數影響較大。Taking the bending stiffness, cable sag and cable inclination into consideration, the space vibration control of the cables using the visco - elastic dampers in cable - stayed bridges is investigated by joining the center difference method and the state space strategy. both the maximum modal damping ration and the optimal damper size are obtained, then the practical suggestions are proposed for the design of the dampers. the space nonlinear vibration equations of the cable - damper system are derived, and a new hybrid method for solving the cable - damper system is presented by combing the newmark method and pseudo - force technology
綜合考慮了拉索抗彎剛度、垂度的影響,研究了粘彈性阻尼器對斜拉橋拉索的空間振動控制,聯合中心差分方法及狀態空間法,得出了拉索麵內、外振動各階模態可能達到的最大阻尼比及相應的最優阻尼器系數,並對斜拉橋拉索的阻尼器設計提出了參考建議:考慮拉索抗彎剛度、垂度及幾何非線性,導出了索-阻尼器系統的空間振動非線性方程組,結合newmark方法及偽力( pseudo - force )方法,創新地提出了求解非線性方程組的雜交方法,根據拉索-阻尼器系統的阻尼特性,在各種荷載作用下,對索-阻尼器系統的非線性瞬態振動響應進行了研究,從系統響應的角度更加直接地驗證了阻尼器的控制效果。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。Based on the transient response, the control effectiveness of the visco - elastic dampers is further demonstrated. according to the lqr optimal control theory, clipped - optimal control arithmetic, and the modified bouc - wen model of the mr dampers, the lqr - clipped semi - active control is proposed. the passive, active, and semi - active control of the cables are analyzed by using the difference discretization model of the cable - dampers system
結合lqr最優控制理論、面向速度剪切( clipped - optimal )控制演算法及修正的磁流變( nr )阻尼器bouc - wen模型,創新地提出了lqr - clipped半主動控制演算法,應用拉索振動的差分離散模型,對斜拉索的面內振動進行了被動、主動及半主動控制研究,分析了mr阻尼器對斜拉索的振動控制效果。分享友人