건설기계 유압용 축압기에 관한 신뢰성 평가시험 연구

다국어 초록 (Multilingual Abstract)

An accumulator is used in oil hydraulic system of construction machinery to save energy and reduce a vibration and shock. The use of the accumulator has recently increasing, but the reliability evaluation criteria differs from country to country. So, it is difficult to ensure the reliability whether their performance meet domestic environment and situation. In this study, we introduce the reliability evaluation criteria of the accumulator for construction machinery. Among several type of accumulators, we deal with the diaphragm type accumulator of a small capacity. In order to specify the evaluation criteria of the diaphragm type accumulator, we analyzed the functional requirements of the accumulator and checked the main failure mode of the components. Then, we analyzed KS standards and international standards (ISO, JIS, MIL, and SAE). As a results, we enacted a total of 11 type reliability tests including 4 type comprehensive performance tests, 4 type environmental resistance tests, 2 type stability tests, and a life test.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 다이어프램형 축압기
• 3. 종합성능시험
• 4. 내환경성 시험
• 5. 내안전성 시험
• 6. 수명 시험
• 7. 결론
• References