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提高产品的可靠性已是现时国内外工业界的重大任务。鉴于产品的可靠性(寿命)是在一定载荷条件下定义的,因此全面地评价、考核产品的可靠性或寿命,必须确定其载荷条件。液压泵在实际使用中载荷状况是多变的,除了应用典型载荷谱的模拟方法外,通常,特别是对于生产厂商,往往采用恒载加冲击的加载试验方法。25SCY14-1 B轴向柱塞泵在恒定载荷下的寿命试验研究已经取得了有效的成果,改进后的新泵寿命至少可提高1.6倍,每年可获得百万元以上的经济效益。在此基础上开展的泵冲击载荷下的寿命研究,经过一年时间的努力也取得了满意的结果。找到了冲击载荷下的失效模式、失效薄弱环节、失效密度函
Improving the reliability of products has become a major task of the industrial circles at home and abroad. Since the reliability (life) of a product is defined under a certain load condition, it is necessary to determine its load condition comprehensively to evaluate and evaluate the reliability or lifetime of the product. Hydraulic pump load conditions in actual use is changing, in addition to the application of typical load spectrum simulation method, usually, especially for manufacturers, often using load and impact load test method. 25SCY14-1 B axial piston pump under constant load life test research has achieved effective results, the new pump life can be improved by at least 1.6 times, get more than one million yuan per year economic benefits. Based on this, the research on the life under pump impact load has achieved satisfactory results after one year of hard work. Find the failure mode under the impact load, failure link, failure density function