I am doing strength analysis of the electric motor in abaqus. It is in three steps. in the first step the boundary conditions will be applied, in second step contact over closure between motor housing and stator with contact interference capability of abaqus which generate stress and strain in the part, third step is screw pretension force. Now, after completing analysis i get the results which is shown in the picture. I am mainly interested in the motor housing and can not change the thickness because of the weight issue. It has 3mm thickness. The maximum stress is at radius which is 3mm at flange. The material for the housing is steel with yield stress 330 MPa. In the picture grey Color is above yield strength. I have triad many geometries but has not much difference. some of them are in pictures. does any one have idea how can i increase the stiffness of the motor housing?
You could try a shape or freeform optimization of the housing.
min w
s.t. \sigma
Try running an analysis to determine regions where strain energy is predominant as well as modal analysis. This may help you to determine where material needs to be added. The material geometry depends on various parameters and is hard to tell from the given information.
Nils Wagner Thank you for your answer and sorry but I cannot share the Abaqus model. Shape optimization is also not possible because of the manufacturing process.
Pedro Morales Thank you very much for your answer. I will do it let you know what happens.
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