由我院设计、抚顺重机厂制造的皮带转载机,空载时悬臂翘起行走,如图1 a,因此产生刚度是否足够的问题;在各种皮带悬臂转载机构中,都存在悬臂桁架的挠度的计算问题,因此是比较普遍的问题。它们一般都是静定的桁架,其挠度的计算按材料力学或结构静力计算手册,通过逐个杆件计算最后相加的办法,计算是比较麻烦的。对几种简单的桁架,是可以推导得现成的计算公式的,包括下列几 The design of our hospital, Fushun Heavy Machine Factory manufacturing belt reloader, cantilever tilt-free walk, shown in Figure 1a, resulting in stiffness is sufficient; Deflection calculation problems, therefore, is a more common problem. They are generally statically determinate trusses, and their deflections are calculated in terms of material mechanics or structural static calculations. Computation is cumbersome by calculating the final additions one by one. For several simple trusses, it is possible to derive off-the-shelf formulas, including the following