Out - plane stability of tapered beam - columns with hinged - hinged end 楔形变截面柱平面内稳定及平面内等效弯矩系数
Steel memher beam - column 钢压弯构件等效弯矩系数
Coefficient of equivalent bending moment of eccentrically loaded steel memher beam - column okok . org 钢压弯构件等效弯矩系数58
Firstly the method of rayleigh - ritz and galerkin were adopted to analyze the beams under loading combined antisymmetric end moments with transverse uniformly distributed load theoretically , and the results were compared with that offered by kirby , p . a and nethercot , d . a , it showed that result was approximate and even lower and so to some extent the approach used in the paper is practice . secondly several principal factors that affect the beam stability were analyzed respectively , especially the shortening effect was mentioned scarely in some literature so far . at last , the author adopted the matlab to program the finite element software to analyze numerically , the results derived from it were agreed well with it 本文分别采用了rayleigh - ritz法和galerkin法从理论上分析了反对称端弯矩及横向均布载共同作用下梁的等效弯矩系数,并与kirby , p . a和nethercot , d . a分析结果进行对比,结果表明本文采用的方法得出的等效弯矩系数与其得出结果比较,在均布荷载与端弯矩比例相差不大时基本接近或偏小,说明此方法是可行的,而当均布荷载与端弯矩比例较大时,应根据均布荷载作用进行弯矩等效方法来计算。
In light of the elastic thin plate theory , the author induced equilibrium differential equation of bi - direction cellular slab , which was proved correct through analysis and comparison to result of ansys to with theoretical calculation . through the deflection and bending moment coefficient calculation of bi - direction cellular slab under various boundary conditions , the author brought forward the theory that the deflection of mid - span and bending moment coefficient calculation of mid - span and support of bi - direction cellular slab could be in accordance with solid plates " , which could satisfy the precision of engineering 本文根据弹性薄板理论,导出了双向空腹板的平衡微分方程,并通过理论计算和通用有限元程序ansys结果对比,验证了其正确性;通过对各类边界条件下双向空腹板挠度和弯矩系数的计算比较,本文提出:双向空腹板跨中挠度及跨中、支座弯矩可使用本文空腹板刚度公式查找现有的实心板挠度弯矩系数表进行计算,完全能满足工程精度要求。
弯: curved; bent; crooked; flexu ...矩: carpenter's square; square r ...系数: coefficient; ratio; modulus; ...波浪弯矩系数: wave bending moment coefficient钢压弯构件等效弯矩系数: coefficient of equivalent bending moment of eccentrically loaded steel memher(beam-column); steel memher矩系数: moment coefficient比力矩系数: output coefficient; specific torque coefficient比扭矩系数: specific torque coefficient比转矩系数: specific torque coefficient变矩系数: torque ratio舵转矩系数: rudder torque coefficient惯性矩系数: coefficient of moment of inertia积矩系数: product-moment coefficient绞矩系数: lay ratio力矩系数: coefficient of moment; coefficient; moment; moment coefficient扭矩系数: torque coefficient转矩系数: coefficient; torque; moment coefficient; torque coefficient【机械工程】矩系数。: moment coefficient额定力矩系数: rated torque coefficient俯仰力矩系数: coefficient; pitching moment; pitching moment coefficient; pitching-moment coefficient滚动力矩系数: rolling moment coefficient滚转力矩系数: coefficient; rolling moment横摆力矩系数: yawing moment coefficient横摇力矩系数: rolling-moment coefficient回正力矩系数: aligning torque coefficient