Thermal and design sensitivity analyses for cooling system of injection mold, part 2: design sensitivity analysis

摘要

DSA will ultimately play an important role in the design optimization process. Part 2 of this paper presents an efficient and accurate methodology for the DSA of the cooling stage of the injection molding process. The DSA program developed in thepresent study utilizes the implicitdifferentiation of the boundary' integral equations and the B. C.s presented in Part I with respect to all DVs to yield the sensitive equations. In this DSA, we have considered various DVs as follows: (i) (DVs related to processing conditions) inletcoolant bulk temperature and inlet coolant volumetricflow rate of each cooling channel inlet, and (ii) (DVs related to mold cooling system design) radius and location of each cooling channel. Two sample problems are solved to demonstrate the accuracy and efficiency of the present DSA formulation and todiscuss the characteristics of each DV.