弦向分力 的英文怎麼說
中文拼音 [xiánxiàngfēnlì]
弦向分力
英文
chord force-
On the basis of the theory of thin shells and the non - moment assumption, the equations of the motion of the conical shells under lateral cosinoidal loading are derived in the case of ignoring shearing stress
基於薄殼理論和無矩假定,在略去剪切應力的情況下推導了圓錐殼在側向餘弦載荷作用下的運動方程,並採用半解析差分方法進行了數值求解。Following, using the experimental methods, the dynamic response of the stiffened conical shells under cosinoidal impulsive loading is studied. the changes of dynamic response of points along circumferential line of the conical shells are analyzed, and the characteristics of dynamic response of points are studied by both the time - domain analytic method and the frequency - domain analytic method
採用實驗方法研究了加筋圓錐殼在側向餘弦載荷作用下的動力響應,分析了沿環向各點的響應變化,並從時域和頻域分析了它們各點的響應特性。The static behavior under vertical loads of kiewitt ' s suspen - dome was analyzed on the initial state. moreover, the behavior of suspen - dome and single - layer lattice shell are compared. the influence of kinds of parameters is studied
本文對初始態下的kiewitt型弦支穹頂結構在豎向荷載作用下的靜力特性進行了深入分析,並同單層網殼結構靜力特性進行比較;為了掌握各個參數對靜力特性的影響程度,進行了參數分析。Two types of seismic calucation methods that are response spectrum analysis and time - history analysis are used to analyze the seismic response of kiewitt ' s suspen - dome under lateral seismic action and vertical seismic action. the result obtained by above - mentioned methods and the code method are compared. genetic algorithm method is proposed to optimize the prestress of suspen - dome
本文採用振型分解反應譜法和時程分析法兩種方法,對kiewitt型弦支穹頂預應力結構的水平和豎向地震作用下的地震效應進行計算分析,並同現行的規范和規程的規定方法一10重力荷載代表值簡化法計算結果進行了比較分析。The blade section can be designed by parent section, thereby its chordwis circulation distributions can be worked out, and then lifting surface theory is used to design the three dimension blade geometry
剖面採用母型剖面方法來設計,進而可確定槳葉弦向環量分佈,然後由升力面理論設計三維槳葉的幾何形狀。Thirdly, the stress distribution in the human body exposed to stable plane wave is calculated in different incident direction and different polarized. also the stress exerts on the surface between human skull and brain tissue is calculated when the human body is exposed to nuclear explosion electromagnetic pulse or microwave weapon electromagnetic pulse in left incident direction and parallel polarized
再次,分析了振幅為100 、隨正弦規律變化的穩態平面波沿不同方向或場極化方向不同時人體內的電場應力分佈,結果表明,波沿不同的方向入射或場極化方向不同時,對人體的作用是不同的。The main original work includes : 1. the interaction between an integral pile and a uniform visco - elastic soil layer with viscous damping or hysteretic damping is theoretically studied, and the pile response to a harmonic load is obtained in a closed form and used to define complex stiffness at the pile head. semi - analytical solution of the velocity response in time domain subjected to a semi - sine wave exciting force is also given
主要工作包括: 1 、在考慮樁周土三維波動條件下,對滯回阻尼、粘性阻尼單層均質土中樁土縱向耦合振動問題進行了解析研究,分別得到樁頂位移、速度頻域響應以及復剛度的嚴格解析表達,以及半正弦脈沖激振力作用下樁頂時域響應半解析解。In the area of elasto - plastic dynamic analysis of frame with friction energy dissipation, the design - oriented nonlinear seismic response time history analysis method for frame with friction energy dissipation has been set up. and the corresponding program idaff is developed using visual c + + language ; the analytic solution of a single - damped - story braced frame with friction energy dissipation under the sine wave excitation has been give ; besides these, a vibration reduction analysis of multi - story frame with friction energy dissipation has been given in the paper and some useful conclusions have been drawn
在摩擦耗能框架結構彈塑性動力分析方面,本文建立了面向設計的摩擦耗能框架結構非線性地震反應時程分析方法,並利用vc + +編制了相應的程序idaff ;給出了帶有摩擦耗能器的有阻尼單層框架在正弦波激勵下反應的解析解;同時本文從多自山度的角度出發對摩擦耗能框架的影響因素進行分析,得出相關的結論。This paper discusses the performance of load bearing under different boundary conditions by model test and finite element analysis. the x - side binding of the supporting surface connecting with up - side chord member of slice arch is the most important factor that affects membrane effect of the slab. the load bearig capacity of the slab with fixed end increased forty percent of the capacity of the simple - supported slab, because membrane effect of the slab with fixed end is remarkable
本文通過模型試驗和有限元分析,較深入地探討了在不同邊界條件下微彎板的受力性能,結果發現與拱片上弦桿連接的支承面有側向約束條件是影響微彎板的薄膜效應最重要的因素,當該支承面為固結狀態時,薄膜效應十分顯著,其承載力比簡支約束微彎板的承載力提高了約40 。Through the dynamic character analysis of the large annular cantilever beam string stadium roof structure, it was obtained that the stiffness of the structure was between the stiff structure and flexible structure and the frequencies were dense, vertical vibration was dominant and then the string beam ' s lateral vibration and torsion vibration
通過對大型環狀懸臂型張弦梁挑蓬結構動力特性分析表明,該結構的剛度介於剛性結構與柔性結構之間,頻譜比較密集,以豎向振動為主,同時伴有張弦梁側向振動和扭轉振動。Valuable conclusion in engineering are drawn for practical design. the method of getting reasonable prestress degree for suspendoem which is restricted by intergral stability was discussed. optimizing programs are developed with the axis force and joint displacement of upper dome as object function respectively, the effective method of prestress degree for suspendoem which is
探討了穩定約束的弦支穹頂鋼索合理預應力度的優化方法,分別以網殼桿件內力、節點豎向位移和節點垂直向下位移為目標函數編制了優化程序,得到了整體穩定約束的弦支穹頂結構確定鋼索預應力值的可行方法。Through analyzing the choice of the personal behavior dynamically and balancedly, including psychological direction, ability direction and professional direction, that is when these three directions are completely consistent, people ’ s planned ability desire and the realisation proportion of the job will achieve the greatest. this is a process of unceasingly enhancing the determined resources to meet the rate needs ? enhancing the cosine value of the angles with two directions, thus is also named the theory of cosine equilibrium
通過對個人行為方向性選擇的心理方向、能力方向和職業方向進行動態平衡分析,即在行為人的心理方向、能力方向和職業方向三個方向達到完全一致時人們既定的能力願意而且能夠用於工作的比例就達到最大,這個動態過程是一個不斷提高既定資源用來滿足需要的比例? ?即提高兩個方向夾角的餘弦值的過程,因此把這個動態平衡的選擇過程稱作餘弦均衡。The characteristics of dynamic response of points along generating line and circumferential line of the cylindrical shells are analyzed, and the effects of l / r ratio on the dynamic response of the cylindrical shells under line - loading are considered as well
分析了沿母線方向和環向各點應力響應的特點以及結構長徑比對應力響應的影響,在此基礎上比較了沿環向呈單餘弦分佈和雙正弦分佈載荷的應力響應。分享友人