The minimum compliance technique for shell structures. Plate thickness variance approach and its applications

Autor:	Kouetsu Yamazaki, Junpei Abe, Juhachi Oda, Jirou Sakamoto, Masahide Matsumoto
Rok vydání:	1991
Předmět:	Optimal design Engineering Optimization problem Cantilever Discretization business.industry Mechanical Engineering Shell (structure) Structural engineering Cardinal point Quadratic equation Mechanics of Materials General Materials Science Sensitivity (control systems) business
Zdroj:	TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A. 57:1005-1010
ISSN:	1884-8338 0387-5008
DOI:	10.1299/kikaia.57.1005
Popis:	A minimum compliance design technique of plate thickness variance for general shell structures assembled by linear-or curved-shell elements is proposed. In this technique, the shell structures are discretized into isoparametric finite shell elements, and nodal point thicknesses are taken as design variables. Thickness distributions on subregions of each element are interpolated by quadratic shape function using the nodal values. Therefore, one can obtain optimal design in which the thickness varys continuously over the whole region of the shell structure. A mathematical programming method is employed to solve the optimization problems using design sensitivity analysis. As a check on effectiveness, the proposed method is applied to a classical cantilever beam problem and a plate clamped at two corners. Furthermore, the problem of maximizing the torsional rigidity of the motorcycle body, which consists of shell elements, is solved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0e8f4574a85597d1e16a9ef5313df726 https://doi.org/10.1299/kikaia.57.1005 Zobrazit plný text záznamu