RESEARCH AND VERIFICATION OF CONTACT STRESS CALCULATION METHOD FOR FIVE-BALL FATIGUE TESTING MACHINE
To accurately calculate the contact stress of the five-ball fatigue testing machine tooling,the tooling design contact angle is determined by the geometric size relationship. According to the load deformation relationship and the formula derived,the balance equation is established between the extern...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2021-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.05.036 |
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| _version_ | 1841535937711964160 |
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| author | JIAO Yan YU QingJie HAN Song LIU JinLing ZHAO SiYang |
| author_facet | JIAO Yan YU QingJie HAN Song LIU JinLing ZHAO SiYang |
| author_sort | JIAO Yan |
| collection | DOAJ |
| description | To accurately calculate the contact stress of the five-ball fatigue testing machine tooling,the tooling design contact angle is determined by the geometric size relationship. According to the load deformation relationship and the formula derived,the balance equation is established between the external load and the working contact angle. The equation is solved using the iteration method. The working contact angle under load is calculated,and the tooling contact stress is obtained. For the actual size of the 9. 525 mm diameter steel ball tooling,the contact stress comparative analysis is calculated by the numerical algorithm and finite element method respectively. The calculation result deviation is less than 2%. It shows the contact stress numerical algorithm is reliable,it can be used for the test protocol formulation and provide guidance for the test tooling design. |
| format | Article |
| id | doaj-art-550469980845406b897e0b75877fe570 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2021-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-550469980845406b897e0b75877fe5702025-01-15T02:25:28ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692021-01-01431267127030611965RESEARCH AND VERIFICATION OF CONTACT STRESS CALCULATION METHOD FOR FIVE-BALL FATIGUE TESTING MACHINEJIAO YanYU QingJieHAN SongLIU JinLingZHAO SiYangTo accurately calculate the contact stress of the five-ball fatigue testing machine tooling,the tooling design contact angle is determined by the geometric size relationship. According to the load deformation relationship and the formula derived,the balance equation is established between the external load and the working contact angle. The equation is solved using the iteration method. The working contact angle under load is calculated,and the tooling contact stress is obtained. For the actual size of the 9. 525 mm diameter steel ball tooling,the contact stress comparative analysis is calculated by the numerical algorithm and finite element method respectively. The calculation result deviation is less than 2%. It shows the contact stress numerical algorithm is reliable,it can be used for the test protocol formulation and provide guidance for the test tooling design.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.05.036Five-ball fatigue testing machineContact stressWorking contact angleFinite element methodReliable |
| spellingShingle | JIAO Yan YU QingJie HAN Song LIU JinLing ZHAO SiYang RESEARCH AND VERIFICATION OF CONTACT STRESS CALCULATION METHOD FOR FIVE-BALL FATIGUE TESTING MACHINE Jixie qiangdu Five-ball fatigue testing machine Contact stress Working contact angle Finite element method Reliable |
| title | RESEARCH AND VERIFICATION OF CONTACT STRESS CALCULATION METHOD FOR FIVE-BALL FATIGUE TESTING MACHINE |
| title_full | RESEARCH AND VERIFICATION OF CONTACT STRESS CALCULATION METHOD FOR FIVE-BALL FATIGUE TESTING MACHINE |
| title_fullStr | RESEARCH AND VERIFICATION OF CONTACT STRESS CALCULATION METHOD FOR FIVE-BALL FATIGUE TESTING MACHINE |
| title_full_unstemmed | RESEARCH AND VERIFICATION OF CONTACT STRESS CALCULATION METHOD FOR FIVE-BALL FATIGUE TESTING MACHINE |
| title_short | RESEARCH AND VERIFICATION OF CONTACT STRESS CALCULATION METHOD FOR FIVE-BALL FATIGUE TESTING MACHINE |
| title_sort | research and verification of contact stress calculation method for five ball fatigue testing machine |
| topic | Five-ball fatigue testing machine Contact stress Working contact angle Finite element method Reliable |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.05.036 |
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