원격 하중 조건을 고려한 1차원 Beam 유한요소해석을 통한 압축 코일 스프링의 효율적 거동 예측

초록

In this study, an efficient strategy based on one dimensional (1D) beam finite element analysis (FEA) was investigated to predict the structural responses of compression helical springs. Herein, 1D beam FEA was considered as an alternative method to mitigate the computational cost of three dimensional (3D) solid FEA. Two types of remote-loading conditions, namely, rigid multipoint constraints (RMC) and interpolation multipoint constraints (IMC), were introduced to accurately predict the global behavior of compression helical springs. To evaluate the accuracy and applicability of each remote-loading condition, the numerical results of the 1D beam FEA were quantitatively compared with the theoretical solutions and the results of 3D solid FEA. A compression helical spring model conforming to the KS B 2400 standard was used as an example to discuss the applicability of each analytical approach to the preliminary and detailed design stages. The results demonstrate that IMC-based 1D beam FEA provides a computationally efficient and reliable approach for predicting the structural behavior of compression helical springs.

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