CAJ | 학술논문

真空导入成型工艺(VIMP)广泛应用于复合材料游艇艇体制造,然而其浇注系统在工程上仍然主要根据经验或多次试验来设置.论文基于数值模拟技术,对游艇艇体VIMP工艺浇注系统的优化方法进行了研究.通过对充模过程和流道布置方式的分析,提出了流道布置方案评价方法;通过对四种不同流道布置方式的树脂充模过程进行仿真,确定了最佳的流道布置方式.研究了游艇艇体 VIMP 工艺浇口位置优化方法,确定了优化目标和优化参数,建立了优化浇口位置的数学模型;并通过一系列的树脂充模过程模拟,仿真拟合出浇口位置优化目标函数的具体形式,进而获得浇口位置的最优值.数值分析结果同时表明:仅采用增加浇口数量的方法,达不到既能降低充模时间同时又能避免充模缺陷的目的.
진공도입성형공예(VIMP)엄범응용우복합재료유정정체제조,연이기요주계통재공정상잉연주요근거경험혹다차시험래설치.논문기우수치모의기술,대유정정체VIMP공예요주계통적우화방법진행료연구.통과대충모과정화류도포치방식적분석,제출료류도포치방안평개방법;통과대사충불동류도포치방식적수지충모과정진행방진,학정료최가적류도포치방식.연구료유정정체 VIMP 공예요구위치우화방법,학정료우화목표화우화삼수,건립료우화요구위치적수학모형;병통과일계렬적수지충모과정모의,방진의합출요구위치우화목표함수적구체형식,진이획득요구위치적최우치.수치분석결과동시표명:부채용증가요구수량적방법,체불도기능강저충모시간동시우능피면충모결함적목적.
@@@@Vacuum infusion molding process (VIMP) is widely used to manufacture yacht hull. Pouring system in the process has a key influence on filling time, process cost and hull quality, but it is usually designed with experience and lots of experiments. In this paper, optimization method of the pouring system in VIMP for composite yacht hull was studied. An evaluation method for runner layout pattern was proposed after analyzing the filling process and the frequently-used runner layout patterns. Then filling process simulations for four runner layout patterns were implemented and the best runner layout pattern was determined. Optimization method for gate location of VIMP was studied; a mathematical model for optimizing the gate location was established after determining the optimal objective and optimal parameters. Concrete form of the object function for gate location optimization was determined after a series of simulations, and then the optimal gate location was obtained. The simulations also showed that it was inadvisable to reduce the filling time just by adding the quantity of gates.