可靠性寿命试验正在液压工业各个领域深入而又广泛地开展。由于寿命试验的载荷形式要求和功率消耗大等一些特点,其试验系统的设计有其特殊性。通常试验的载荷,除了恒载以外,还有较高频率的冲击。而冲击脉冲的产生,特别是被试元件的失效保护(指元件失效 Reliability life testing is in-depth and extensive in all aspects of the hydraulics industry. Due to the life-test load form requirements and power consumption and some other characteristics, the design of the test system has its own particularity. The usual test load, in addition to dead load, there is a higher frequency of the impact. The impact of pulse generation, especially the failure of the tested components (referring to the failure of components