论文部分内容阅读
敞车车体结构最薄弱的部分是端门。用端墙代替端门并改变角柱的结构将会全面提高车体的强度。有端墙的敞车,除运送普通散装货物和堆装货物外,还打算运送各种没有附加捆绑设备堆放的成件货物。而这些货物的压力都直接传递给端墙。端门计算载荷假定等于散装货物的侧压力,这个侧压力由等式T=KP来确定, P=γytg~2(45°+φ/2) (1) 式中 K——标准强度安全系数(K=1.1); γ——单位体积重量(吨/米~3); φ——散装货物的内摩擦角; y——从货物表面到所求压力作用点的距离(米)。当γ=0.9吨/米~3,φ=30°时,P(y)
The weakest part of the gondola body structure is the end door. Replace the end door with the end wall and change the structure of the corner post will improve the strength of the body. Gondola gondola, in addition to shipping ordinary bulk cargo and stowage cargo, also intends to transport a variety of non-bundled bundled equipment stacked goods. The pressure of these goods are passed directly to the end wall. The calculated load at the end gate is assumed to be equal to the lateral pressure of the bulk cargo. This side pressure is determined by the equation T = KP, P = γytg ~ 2 (45 ° + φ / 2) where K is the standard strength safety factor K = 1.1); γ - weight per unit volume (t / m ~ 3); φ - internal friction angle of bulk cargo; y - distance from the surface of the cargo to the point of application of the pressure sought (in meters). When γ = 0.9 t / m ~ 3 and φ = 30 °, P (y)