Design of reliability qualification test for pneumatic cylinders based on performance degradation data

作者：Chang Mu Seong; Kwon Young Il; Kang Bo Sik^*

来源：Journal of Mechanical Science and Technology, 2014, 28(12): 4939-4945.

DOI：10.1007/s12206-014-1115-1

• Degradation test
• Performance degradation
• Pneumatic cylinder
• Reliability qualification test
• Zero-failure test

Product performance deteriorates over time, and the event in which the performance degradation reaches a pre-specified threshold value is often defined as a failure. If performance degradation of a product is observable, the degradation data can be used to obtain the information on product reliability. The degradation data often provide more information on product reliability than failure time data. For reliability qualification of mechanical components, such as pneumatic cylinders, a zero-failure test based on product failure time is widely used. When the degradation data is available, a reliability qualification test can be designed based on performance degradation data instead of failure time data. In this paper, we proposed a reliability qualification test method for pneumatic cylinders based on performance degradation data. Comparison analysis between degradation-based and zero-failure test methods was performed. The proposed reliability qualification test based on performance degradation data required a shorter test time and a lower number of samples than the zero-failure test.

• 出版日期2014-12