一种新型后装式垃圾车结构优化设计

首先对后装式压缩垃圾车的车厢截面形状进行优化,设计出一种具有椭圆截面车厢的新型后装式垃圾车.给出椭圆截面车厢的自重、惯性、压缩、挤入、推出等压缩垃圾载荷的数学表达.而后对车厢与填科器结构进行多种危险工况的有限元分析,采用导重法对结构构件尺寸进行优化设计,在保证结构应力小于许用应力的前提下,本新型椭圆截面后装武垃圾车结构质量比原来的矩形截面压缩垃圾车减少了33.5%,是同类后装武压缩垃圾车中的最轻者.

The optimum design of a new type of compressed rubbish truck

Through a mathematical programming, firstly, the optimum shape of the compressed rubbish truck has been found. Then a new type of compressed rubbish truck with full elliptical section has been designed. Using the Eggshell rubbish load expression, we give the mathematical expressions of weight, inertia, compression, push loads. Using Guide-weight method, on the basis is of finite element analysis in the most dangerous service conditions, the structural optimization of the compressed rubbish vehicle is successfully completed. Through the structural optimization, within the permissible stress, the weight of the new type of rubbish truck with elliptical section has reduced by 33.5% than that of old compressed rubbish truck with rectangular section, and it is the lightest one of this kind of compressed rubbish trucks.