작동성 향상을 고려한 해치시스템 프레임 구조 설계

초록

This study proposes a solution to address the deterioration of alignment and performance in the front-end hatch system of high-speed trains caused by long-term use. The conventional hatch system employs gas springs, which are susceptible to internal pressure loss when exposed to prolonged temperature fluctuations and external environmental conditions. This results in structural deformation and misalignment, leading to operational failures. To resolve these issues, this research presents a newly designed integrated frame structure that replaces the gas spring mechanism. A prototype was developed and subjected to vibration and shock tests in accordance with IEC 61373. In addition, field tests on actual trains were conducted to verify that no operational errors occurred during repeated opening and closing over an extended period of operation. The results confirm that the proposed frame structure effectively addresses the limitations of the conventional system, ensuring both alignment stability and consistent performance.

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