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Titolo:
On topology optimization of plates with prestress
Autore:
Pedersen, NL;
Indirizzi:
Tech Univ Denmark, Dept Solid Mech, DK-2800 Lyngby, Denmark Tech Univ Denmark Lyngby Denmark DK-2800 d Mech, DK-2800 Lyngby, Denmark
Titolo Testata:
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
fascicolo: 2, volume: 51, anno: 2001,
pagine: 225 - 239
SICI:
0029-5981(20010520)51:2<225:OTOOPW>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
STRUCTURAL OPTIMIZATION; DESIGN; HOMOGENIZATION; MAXIMIZATION; EIGENVALUES; MICROPHONE; STIFFNESS;
Keywords:
topology optimization; prestress; SIMP; eigenvalue; MEMS design;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Pedersen, NL Tech Univ Denmark, Dept Solid Mech, Bldg 404, DK-2800 Lyngby,Denmark Tech Univ Denmark Bldg 404 Lyngby Denmark DK-2800 y, Denmark
Citazione:
N.L. Pedersen, "On topology optimization of plates with prestress", INT J NUM M, 51(2), 2001, pp. 225-239

Abstract

In this work, topology optimization is used to optimize the compliance or eigenvalues of prestressed plates. The prestress is accounted for by including the force equivalent to the prestressing and adding the initial stress stiffness matrix to the original stiffness matrix. The calculation of the sensitivities is complicated because of the initial stress stiffness matrix,but the computational cost can be kept low by using the adjoint method. The topology optimization problem is solved using the solid isotropic material with penalization (SIMP) method in combination with method of moving asymptotes (MMA). Numerical examples of minimizing compliance or maximizing thefirst eigenvalue of plates are given. One example is a micro electro mechanical systems (MEMS) application involving a backplate used in a microphonein a hearing aid. Copyright (C) 2001 John Wiley & Sons, Ltd.

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Documento generato il 06/04/20 alle ore 02:05:50