The loading surface has been designed to hold various load - bed units for diverse purposes 裝載表面設(shè)計(jì)上已舉行各種負(fù)荷床單位為各種各樣的目的。
All loading pads shall be capable of pivoting in relation to the direction of the applied force and the pivot point shall be as close as practically possible to the load surface 所有的坐墊要能夠做到相對(duì)于用力方向的繞軸旋轉(zhuǎn)以及該旋轉(zhuǎn)點(diǎn)要和承載面盡可能地靠攏。
( 6 ) the abnormality criteria of fracture mechanics are employed to diagnose the abnormality of the crack , and the inversion of the concrete fracture roughness is studied . the space prediction model of the anomalous load is presented using neural network . the load surface of stress intensity factor and its corresponding plane is given and employed to diagnose and predict the abnormal load of the crack ( 6 )應(yīng)用斷裂力學(xué)理論,對(duì)裂縫轉(zhuǎn)異進(jìn)行診斷,并探討了混凝土斷裂韌度的反演分析方法;建立了反映荷載組合與應(yīng)力強(qiáng)度因子之間關(guān)系的神經(jīng)網(wǎng)絡(luò)模型,反饋分析裂縫的轉(zhuǎn)異荷載,在此基礎(chǔ)上,研制了應(yīng)力強(qiáng)度因子的三維荷載曲面圖以及相應(yīng)的二維平面圖,提出裂縫轉(zhuǎn)異荷載的空間預(yù)報(bào)模型;并通過(guò)實(shí)例驗(yàn)證。