generalized stiffness 中文意思是什麼
-
In this paper, a generalized hybrid finite strip method is deduded for analyzing the shear lag effect in box girders. it has the advantage of the generalized finite strip method and hybrid stress element. shear lag effect in thin - walled box girder is analyzed with this method and stiffness matrix of generalized hybrid finite strip element is deduced. a calculating program for thin - walled box girder " s generalized hybrid finite strip method is compiled with fortran language and performed in visual fortran environment of pc computer. a typical example demonstrates that the proposed method has higher accuracy and efficiency, is suitable for analysis of shear lag effect in box girders
本文結合應力雜交元法和廣義有限條法導出一種用來分析箱梁剪力滯效應的廣義應力雜交有限條法，它兼有應力雜交元和有限條法的優點。運用這種方法對薄壁箱形梁的剪力滯效應進行了分析，推導出廣義應力雜交有限條元的單元剛度矩陣，用fortran - 77語言編寫薄壁箱形梁廣義雜交有限條法程序（ hfsbg . for ）在visualfortran環境下運行。具體算例的數值結果表明：廣義應力雜交有限條法用於計算箱形梁的應力分析具有很好的精度和效率，適合於分析箱形梁的剪力滯效應。 -
Based on the phenomenon, this paper introduces the multiple mega - sub controlled frame and its step design method, it can be generalized as the following approach : first, we look for the optimal stiffness of the sub structure to control the deformation of the mega structure under the wind load. second, we optimize the parameters of the turned mass damper ( tmd ) which are installed in the sub structure to have the acceleration be controlled, and then we realize the overall objective. at last this paper uses the ecpm method to optimize the parameters of tmd and utilize simulink to simulate the dynamical response
本文利用等效最優理論（ ecpm ）對tmd的參數進行了優化，利用simulink對復合結構進行了動態模擬，結果表明：附加安裝在子結構上的tmd並不會對主結構的動態特性產生大的影響，復合結構和減振結構一樣都可以較好的控制主結構位移響應，而且復合結構經優化后的tmd還較好的控制了子結構加速度響應，所以復合結構體系既可以提高結構的安全性，又可以滿足舒適度的要求，從而證明了本文提出的巨型框架復合減振結構是一種理想的超高層建築結構形式，其將具有廣闊的發展前景。 -
During dynamic analysis of framework, according to mechanical performance of reinforced concrete frame structure under seismic force, the element of beam and column can be simplify into 5 pole element whose stiffness is variable. then damage model of 5 pole elements with variable rigidity can be established if the damage parameters based on elastic transformative energy are generalized into pole elements
針對地震力作用下鋼筋混凝土框架結構樑柱的受力特性，對框架進行動力分析時將樑柱構件簡化為五段變剛度桿單元，將基於彈性變形能的損傷指標推廣到桿件，建立了該五段變剛度桿單元的損傷模型。 -
Thirdly, based on the geometrical differential constraints and force balancing constraints of the coordinated flexible manipulators, the mutual relationships between the kinematic and dynamic parameters in static configuration have been presented. the manipulation stiffness of the coordinated system has also been proposed. the manipulability of the flexible robot system has been then analyzed in two aspects : i ) the global characteristics in the manipulation workspace based on the manipulation stiffness ; ii ) the local property of the reachable boundary of generalized forces
然後，利用柔性機器人協調抓取的幾何微分約束和力平衡約束，通過深入分析系統在靜態位形時其內部各運動參量和力參量之間的關系，定義了系統的操作剛度，從兩個方面對系統的操作性能進行了分析： 1 ）操作空間中，基os于系統操作剛度的全局特性； 2 ）在一定約束的條件下，系統操作力矢端可達二邊界的局部特性。
分享友人