Mixed methods for viscoelastodynamics and topology optimization
نویسندگان
چکیده
منابع مشابه
On Models and Methods for Global Optimization of Structural Topology
This thesis consists of an introduction and seven independent, but closely related, papers which all deal with problems in structural optimization. In particular, we consider models and methods for global optimization of problems in topology design of discrete and continuum structures. In the first four papers of the thesis the nonconvex problem of minimizing the weight of a truss structure sub...
متن کاملislanding detection methods for microgrids
امروزه استفاده از منابع انرژی پراکنده کاربرد وسیعی یافته است . اگر چه این منابع بسیاری از مشکلات شبکه را حل می کنند اما زیاد شدن آنها مسائل فراوانی برای سیستم قدرت به همراه دارد . استفاده از میکروشبکه راه حلی است که علاوه بر استفاده از مزایای منابع انرژی پراکنده برخی از مشکلات ایجاد شده توسط آنها را نیز منتفی می کند . همچنین میکروشبکه ها کیفیت برق و قابلیت اطمینان تامین انرژی مشترکان را افزایش ...
15 صفحه اولKrylov Subspace Methods for Topology Optimization on Adaptive
Topology optimization is a powerful tool for global and multiscale design of structures, microstructures, and materials. The computational bottleneck of topology optimization is the solution of a large number of extremely ill-conditioned linear systems arising in the finite element analysis. Adaptive mesh refinement (AMR) is one efficient way to reduce the computational cost. We propose a new A...
متن کاملA PLAtform for Topology Optimisation incorporating Novel, Large-Scale, Free-Material Optimisation and Mixed Integer Programming Methods Lower bounding problems for stress constrained discrete structural topology optimization problems
The multiple load structural topology design problem is modeled as a minimization of the weight of the structure subject to equilibrium constraints and restrictions on the local stresses and nodal displacements. The problem involves a large number of discrete design variables and is modeled as a non-convex mixed 0–1 program. For this problem, several convex and mildly non-convex continuous rela...
متن کاملA BINARY LEVEL SET METHOD FOR STRUCTURAL TOPOLOGY OPTIMIZATION
This paper proposes an effective algorithm based on the level set method (LSM) to solve shape and topology optimization problems. Since the conventional LSM has several limitations, a binary level set method (BLSM) is used instead. In the BLSM, the level set function can only take 1 and -1 values at convergence. Thus, it is related to phase-field methods. We don’t need to solve the Hamilton-Jac...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Frattura ed Integrità Strutturale
سال: 2014
ISSN: 1971-8993
DOI: 10.3221/igf-esis.29.31