Double angle formula can transform the circular function equation to a biquadratic algebraic equation,and the analysis solution can be solved by extract equation directly.

用倍角公式可將該三角函數(shù)方程轉(zhuǎn)化成一個四次代數(shù)方程老赵和苏清雅小说名字，然后用求根公式直接求出解析解。

In response to distortional double coordination about deflection and torsion in the storied covery in which major and secondary beam s are used,utilizing the angle distortion displacement method and moment equilibrium distribution method of deflection and torsion yields the calculation formula of displacement.

針對主欧美三級片AAAA、次梁樓蓋中正交梁系彎扭變形雙協(xié)調(diào)問題精品亚洲韩国一区二区三区，采用彎扭角變位移法與彎扭力矩綜合平衡分配法，推導(dǎo)出桿端位移日韩午夜神马视频在线播放免费观看、彎矩及扭矩的計算公式黄色视频免费领取。

A multiple-step beams model was established to analyze the static stiffness characteristics of the double parallel four-bar mechanism with right angle flexible hinges based on the symmetry of the structure. Formula for calculating the static stiffness was derived by applying singularity function. On the basis of this analysis, the factors influencing the stiffness performance of the double parallel four-bar mechanism were studied from its geometric parameters, and the theoretical model was verified by finite element method.

根據(jù)其結(jié)構(gòu)的對稱性建立了靜剛度分析的階梯梁模型，引入奇異函數(shù)法推導(dǎo)了柔性雙平行四桿機構(gòu)的靜剛度計算公式伊人久久大香线蕉亚洲l，在此基礎(chǔ)上久久精品视频国产，分析了柔性雙平行四桿機構(gòu)各尺寸參數(shù)對其靜剛度的影響，并采用有限元方法對理論模型進(jìn)行了驗證精品欧美色视频网站在线观看。

Firstly, this paper discusses the development actuality of the research on double-front axle steering system and power-train of automobile. Based on the structure of the design experiences from others, the kinematics formula of double-front axle steering system is fetched, and the mathematical model of optimization design of double rocking arms mechanism and steering trapezium mechanism is established by space geometry method. Considering the difference between the real steering angle from wheels and the ideal steering angle from the ideal formula as the objective function, the optimization design method of double-front axle steering system is presented.

本文首先論述了國內(nèi)外對汽車雙前橋轉(zhuǎn)向系統(tǒng)和動力傳動系統(tǒng)研究的發(fā)展?fàn)顩r人人插人人做人人干，在總結(jié)前人研究設(shè)計經(jīng)驗的基礎(chǔ)上推導(dǎo)出汽車雙前橋轉(zhuǎn)向系統(tǒng)運動學(xué)關(guān)系，運用空間幾何法建立了雙前橋雙搖臂機構(gòu)及轉(zhuǎn)向梯形機構(gòu)優(yōu)化的數(shù)學(xué)模型另类亚洲欧美专区第一页，以轉(zhuǎn)向輪實際轉(zhuǎn)角值與理想公式求出的理想轉(zhuǎn)角值之間的誤差達(dá)到最小為目標(biāo)函數(shù)五月丁香激情久久，提出了雙前橋轉(zhuǎn)向系統(tǒng)參數(shù)的優(yōu)化設(shè)計方法。