document: Three-dimensional optimum design of the cooling lines of injection moulds based on boundary element design sensitivity analysis A three-dimensional numerical simulation using the boundary element method is proposed , which can predict the cavity temperature distributions in the cooling stage of injection moulding . Then , choosing the radii and positions of cooling lines as design variables , the boundary integral sensitivity formulations are deduced . For the optimum design of cooling lines , the squared difference between the objective temperature and temperature of the cavity is taken as the objective function . Based on the optimization techniques with design sensitivity analysis , an iterative algorithm to reach the minimum value of the objective function is introduced , which leads to the optimum design of cooling lines at the same time
doc_bio_tags: O O O O O O O O O O O O O O O O O O O O O O O B I I O O O O O O O B I I O O B I O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I O O O O B O O O O O O O B I O O O O O O O B I O O O O O O O O O O O O O O O O