CAJ | 학술논문

采用拓扑优化和尺寸优化对不压井装置进行结构优化设计。首先利用基于变密度法的拓扑优化，以柔度最小为优化目标，体积分数作为约束条件，得到设计空间内最优的材料分布路径。然后根据得到的拓扑结构重新设计不压井装置结构。利用最终得到的不压井装置的拓扑结构建立新的有限元模型，利用尺寸优化工具，以最小质量为优化目标，最大位移与最大应力为约束条件，实现不压井装置的减重。通过综合两种优化方法，不仅提高了不压井装置的性能，而且大大降低了不压井装置的质量，为工程结构提供了一种新设计思路。
채용탁복우화화척촌우화대불압정장치진행결구우화설계。수선이용기우변밀도법적탁복우화，이유도최소위우화목표，체적분수작위약속조건，득도설계공간내최우적재료분포로경。연후근거득도적탁복결구중신설계불압정장치결구。이용최종득도적불압정장치적탁복결구건립신적유한원모형，이용척촌우화공구，이최소질량위우화목표，최대위이여최대응력위약속조건，실현불압정장치적감중。통과종합량충우화방법，불부제고료불압정장치적성능，이차대대강저료불압정장치적질량，위공정결구제공료일충신설계사로。
The topology optimization and size optimization were adopted for snubbing unit design.First of all,by using topology optimization which based on variable density,the most optimal material distribution path in the design space was obtained,which aimed for the minimum compliance and constrained by volume fraction.As a result,snubbing unit can be redesigned by the topology optimization result.Meanwhile, new finite element model was established on the topology optimization of snubbing unit,and with the tool of size optimization,snubbing unit got weight loss,which aimed for minimum mass and constrained by maximum displacement and maximum stress.Taking use of these two optimization methods,the performance of snubbing unit is improved and the mass of snubbing unit is reduced,which provide a new design method for engineering construction.