2024-03-29T12:47:39Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00019017
2023-01-16T04:07:21Z
312:313:314
Examination of Shape Optimization for the Nonlinear Buckling Phenomenon of Suspension Parts
サスペンション部品の非線形座屈現象に関する形状最適化の検討
新谷, 浩平
55468
長谷, 高明
55469
伊藤, 聡
55470
畔上, 秀幸
55471
SHINTANI, Kouhei
55472
NAGATANI, Takaaki
55473
ITO, Satoshi
55474
AZEGAMI, Hideyuki
55475
Optimum Design
Finite Element Method(FEM)
Nonlinear Buckling
Weight Reduction
Traction Method
Geometrical Non-Linearity
Material Non-Linearity
This paper presents a numerical solution to a non-parametric shape optimization problem for design of suspension arm in which strength of suspension arm is evaluated by reaction force to plastic buckling load due to compulsory displacement. To deal with buckling phenomena, the geometrical non-linearity and material non-linearity are considered. Hyper-elastic theory is applied to calculate the deformation of suspension arm, under assumption of monotonous loading. Mass and the reaction force integral to the buckling phenomena are chosen as an objective function and a constraint function, respectively. The shape derivatives of these functions are evaluated by the shape optimization theory. A numerical scheme based on a sequential quadratic approximation method is applied to reshape by using the shape gradients. In this scheme, the traction method is used to find the decent directions of the cost functions. The scheme is implemented by using a commercial shape optimization program. In this program, the shape gradients are calculated by a user sub-program which is developed by using the result of non-linear FEM analysis of a commercial solver. The numerical example for a suspension arm model shows 12% of mass reduction while keeping the reaction force integral constant.
journal article
一般社団法人日本機械学会
2011-08
application/pdf
日本機械学会論文集A編
780
77
1187
1198
http://dx.doi.org/10.1299/kikaia.77.1187
http://hdl.handle.net/2237/21116
0387-5008
https://nagoya.repo.nii.ac.jp/record/19017/files/12_2011_Shintani.pdf
jpn
https://doi.org/10.1299/kikaia.77.1187