Topic
Minimum weight
About: Minimum weight is a research topic. Over the lifetime, 2002 publications have been published within this topic receiving 28244 citations.
Papers published on a yearly basis
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TL;DR: For shape optimal design it is attempted to utilize the simple and efficient Lagrangian interpolation schemes and to restrict spline interpolation to the movable boundaries.
Abstract: The design of a strictly modular and flexible system for structural optimization is discussed. OPTIMA 2.0 uses advanced design oriented concepts and is provided for linear and nonlinear structural behaviour. For shape optimal design it is attempted to utilize the simple and efficient Lagrangian interpolation schemes and to restrict spline interpolation to the movable boundaries. A simple interpolation scheme for sizing variables allows the simultaneous handling of sizing and shaping. Some approximation models for the explicit approximation of implicit constraint functions are discussed and evaluated. The realm of this models is extended by introducing an exponential hybrid scheme. Applications are presented in shape optimal design. Objectives are minimum weight as well as minimum stress. Some special aspects of the minimum stress problem are discussed.
6 citations
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22 May 2012TL;DR: In this paper, an auxiliary graph representing connection relations between nodes on a plurality of lightpaths in an optical network is created using a pluralityof edges each connecting a pair of nodes, each of the edges is assigned a weight value indicating a magnitude of increase in power consumption of network devices allocated to the each edge.
Abstract: An auxiliary graph representing connection relations between nodes on a plurality of lightpaths in an optical network is created using a plurality of edges each connecting a pair of nodes. The plurality of lightpaths includes first lightpaths existing in the optical network and the second lightpaths to be set to accommodate traffic that is newly generated for the optical network. Each of the plurality of edges is assigned a weight value indicating a magnitude of increase in power consumption of network devices allocated to the each edge. For start and end nodes, a minimum weight path that has a path weight value minimum among paths each being a continuous sequence of edges that starts from the start node and reaches the end node is obtained, where the path weight value is a total sum of weight values assigned to the continuous sequence of edges.
6 citations
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TL;DR: Two classes of ternary codes are described, their minimum weight and weight distribution is determined, and their properties are proved.
6 citations
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6 citations
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TL;DR: In this paper, an efficient procedure to obtain the optimal stacking sequence and the minimum weight of stiffened laminated composite curved panels under several loading conditions and stiffener layouts has been developed based on the finite element method and the genetic algorithm that is powerful for the problem with integer variables.
Abstract: An efficient procedure to obtain the optimal stacking sequence and the minimum weight of stiffened laminated composite curved panels under several loading conditions and stiffener layouts has been developed based on the finite element method and the genetic algorithm that is powerful for the problem with integer variables. Often, designing composite laminates ends up with a stacking sequence optimization that may be formulated as an integer programming problem. This procedure is applied for a problem to find the stacking sequence having a maximum critical buckling load factor and the minimum weight. The object function in this case is the weight of a stiffened laminated composite shell. Three different types of stiffener layouts with different loading conditions are investigated to see how these parameters influence on the stacking sequence optimization of the panel and the stiffeners. It is noticed from the results that the optimal stacking sequence and lay-up angles vary depending on the types of loading and stiffener spacing.
6 citations