Leaf Springs To Optimize The Design And Cae

As one kind of significant motor vehicle suspending system, the automobile leaf spring is living the significant position in the automobile manufacture application. The condition of our country determines vehicle manufacturing cost to be litter high and road condition is poor in our country, therefore the leaf spring seems more significant. Since mostly traditional leaf spring is the multi-leaf spring , the fact is that such physical design is unreasonable, the defect on the different applications was created, in case: waste of the stuff and adding complete auto weight and lifting fuel uses up. Little leaf spring is relatively with the multi-leaf spring thanks to there are much kinds of strong point, therefore having become one of leaf spring development tendency, by widely being employed one by one , and but also the development in the wake of the little leaf spring manufacture technology , its use scope is continuously broadening. Yet for quite some time, there is not the fundamental alteration in the design means of little leaf spring. Contrasted against the developed country, the tremendous disparity exists in little leaf spring on two respects in unit consumption amount and service life. Hence researching to the little leaf spring design, adjusting to cut down unit consumption amount of leaf spring and lift life in service possess the great sense in our country.According to the present situation that automobile little leaf spring was designed and produced in view of our country, and utilizing the well-developed research design measure at present, this paper explores on these field: little leaf spring optimization design, the little leaf spring CAD/CAE researches and so on, and acts some research work.First of all, a new means of little leaf spring design calculation was proposed in the original. That means revises the past when designing merely considers some kind of elements, but is much kinds of elements consider in the synthesis, moreover achieved the electricity to dissolve. The design model choosing effectiveness may be lifted enormously.Secondly, three dimensions CAD designing, more audio-visual to cause it have been carried on to the leaf spring. In this paper I talked about CAE'sresearch pre-editing patterns of plate spring which is favorable of three dimensions finite element analysis, thereby it was convenient for carry on the finite element analysis to the plate spring.Third, plate spring CAE researches, and also is the stress in the paper. Research respect during the CAE of the original researches, chiefly emphasizes the fitting stressing force and is getting near burden and stiffness stress beforehand and so on to little leaf spring. Finite element problem that the difficulty such as the above-mentioned research is the stuff nonlinearity and becomes deformed greatly and plastic property and contacts analysis and so on is made up. For quite some time, people can not be informed how the stress of leaf spring distributes in process of fitting, can only did the test for inspection, moreover did not have no idea about how to select near the burden beforehand, can only come to be underway that the spring is getting near deformation beforehand by means of experience. That the result created is difficult to make the arc altitude unanimously between current product and required product thereby causes doing poorly work again and again. In this article, the CAD/CAE's technique was introduced to this research and compute had been used with current finite element software ANSYS to resolve above-mentioned problems. It was proved that CAD/CAE's method may effectively resolve the above-mentioned issue. What need to point out is, not only as a matter of fact these research means are applicable to little leaf spring but also are applicable equally to the different leaf springs.The fact demonstrates, the research in the paper may lift...