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| Application of Reliability Enhancement Testing Technology in Development of Steering Gear |
| Received:April 23, 2018 Revised:August 25, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2018.08.014 |
| KeyWord:steering gear reliability enhancement testing (RET) test evaluation |
| Author | Institution |
| ZHANG Zhong-wen |
1. China Electronic Product Reliability and Environmental Testing Research Institute, Guangzhou , China; 2. Guangdong Provincial Key Laboratory of Electronic Information Products Reliability Technology, Guangzhou , China |
| WANG Xue-kong |
3. National Joint Engineering Research Center of Reliability Test and Analysis for Electronic Information Products, Guangzhou , China; 4. Guangdong Provincial Research Center of Intelligent robot reliability, Guangzhou , China |
| DU Shao-guang |
5. AVIC Xian Flight Automatic Control Research Institute, Xi'an , China |
| LIN Lin |
5. AVIC Xian Flight Automatic Control Research Institute, Xi'an , China |
| ZHONG Yun-long |
1. China Electronic Product Reliability and Environmental Testing Research Institute, Guangzhou , China; 2. Guangdong Provincial Key Laboratory of Electronic Information Products Reliability Technology, Guangzhou , China |
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| Abstract: |
| Objective To explore applicability of reliability enhancement test technology in development of typical electromechanical-hydraulic integration products-steering gear. Methods With a steering gear as object of study, the feasibility of reliability enhancement test technology was analyzed from exciting failure. Based on response investigation and stress analysis, a reliability enhancement testing of RET was designed in combination with working features of the product, including low-temperature stepping stress test, high-temperature stepping stress test, rapid temperature cycling test of 10 cycles, vibration stepping stress test (including three axis and six degree of freedom random vibration of air hammer and electromagnetic platform vibration) and comprehensive stepping stress test of 5 cycles. The experiment was carried out on this basis. Results Oil leakage failure was effectively excited in the rapid temperature cycling test and comprehensive stepping stress test. It is coincided with the failure of similar products used in the field. Conclusion The reliability enhancement test technology can be effectively used in development of electromechanical-hydraulic integration products, and can effectively activate the weakness with higher frequency in the field, and can be used as one of the methods in development of steering gear. |
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