一种新型后装式垃圾车结构优化设计  

The optimum design of a new type of compressed rubbish truck

作　　者：陈树勋[1] 秦建宁 范长伟[1] 汤勇[1] 

机构地区：[1]广西大学机械工程学院,南宁530004 [2]广西玉柴专用汽车厂,南宁530001

出　　处：《计算力学学报》2009年第6期977-982,共6页Chinese Journal of Computational Mechanics

基　　金：广西科技厅科技攻关项目;广西制造系统与先进制造技术重点实验室基金(071090080-007-Z)资助项目

摘　　要：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。而后对车厢与填料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式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%,是同类后装式压缩垃圾车中的最轻者。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 fuIl 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.

关 键 词：新型后装式垃圾车 椭圆截面 垃圾载荷数学表达 结构优化 导重法 

分 类 号：O224[理学—运筹学与控制论]