An improved multiscale method for life-cycle production optimization

Multiscale Life-Cycle Assessment

A streamlined life-cycle assessment (SLCA) is typically performed at the scale of the completed product. One could also, however, perform SLCAs on components or subsystems (moving down in scale) or on all a corporation’s products (moving up in scale). By analogy with biological ecology, it seems likely that analyses at different scales would ask different questions and reveal different insights...

An improved genetic algorithm for multidimensional optimization of precedence-constrained production planning and scheduling

Integration of production planning and scheduling is a class of problems commonly found in manufacturing industry. This class of problems associated with precedence constraint has been previously modeled and optimized by the authors, in which, it requires a multidimensional optimization at the same time: what to make, how many to make, where to make and the order to make. It is a combinatorial,...

An optimization-based multiscale coupling method

An optimization based algorithm is proposed for solving elliptic problems with highly oscillatory coefficients that do not exhibit scale separation in a subregion of the physical domain. The given method, written as a constrained minimization problem couples a numerical homogenization method in the subregion of the physical domain with scale separation with a fine scale solver in subregions wit...

An Adaptive Multiscale Method for Real–Time Moving Horizon Optimization

An Optimization Based Coupling Method for Multiscale Problems