【摘要】 针对我国轴承行业可非常有效地应用于异常声检测的自动测振仪,在静音轴承异音质量检测时误判率非常高,无法满足静音轴承自动化生产的现状,通过静音轴承异音产生机理和振动信号特征的分析研究,以及现有测振仪振动测量参量和振动峰值测量技术的分析研究,解释了现有自动测振仪对静音轴承异音评判的不适用性;分析论证了静音轴承异音的振动测量参量,提出了以静音轴承异音控制为目的的振动峰值的测量技术,并进行了实验验证。研究结果表明,波峰因数是静音轴承异音较适宜的振动测量参数,并且以一次加载时间段内的均值来评定静音轴承异音,与人耳听觉评定结果具有较高的吻合率。更多还原

【Abstract】 Aiming at the automatic vibration measurer which is very effective for abnormal noise detection,but its misjudgment rate is very high when inspect the quality of noise free bearing,so it can’t meet the noise free bearing automatic production. Through the analysis and research of unpleasant sound generation mechanism and vibration characteristics,as well as the existing vibration measuring parameter and the measurement technology of vibration peak,then the inapplicability of existing automatic vibration measurer which used for the judgment of noise free bearing’s unpleasant sound was explained; The vibration measuring parameter of unpleasant sound was expounded and proved,and the vibration peak measurement technology which for the purpose of the control of unpleasant sound was put forward,at the end experimental verification was given. The results show that the crest factor is the appropriate vibration measuring parameter of noise free bearing’s unpleasant sound,and mean value of a load period should be used to judge unpleasant sound,it has high coincidence rate with the evaluation result of human ear hearing.更多还原