RANDOM FATIGUE LIFE PREDICTION OF STABILIZER BAR BASED ON LOW LOAD STRENGTHENING (MT)
To explore the effect of low load strengthening on the fatigue life of parts under random load, the automobile stabilizer bar is taken as an example, and the collected random load signal is extrapolated to the whole life cycle by peak over threshold extrapolation method. Based on the extrapolated lo...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2023-01-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2023.05.028 |
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| _version_ | 1841534159102672896 |
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| author | HU YuXia WANG HaiJie LIU XinTian |
| author_facet | HU YuXia WANG HaiJie LIU XinTian |
| author_sort | HU YuXia |
| collection | DOAJ |
| description | To explore the effect of low load strengthening on the fatigue life of parts under random load, the automobile stabilizer bar is taken as an example, and the collected random load signal is extrapolated to the whole life cycle by peak over threshold extrapolation method. Based on the extrapolated load signal, the distribution characteristics of its mean and amplitude are analyzed, and the two-dimensional joint probability distribution is established. According to the characteristic that the stabilizer bar is continuously subjected to complex random loads, the influence of mean and amplitude is considered to compile the two-dimensional load spectrum, and the low load strengthening theory is introduced. The life prediction based on linear fatigue cumulative damage theory（Miner rule） and low load strengthening theory is compared with the test results to verify the effectiveness and accuracy of life prediction based on low load strengthening under random load. |
| format | Article |
| id | doaj-art-3ee05ce1418a46e8b4fb30f0faa5498e |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2023-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-3ee05ce1418a46e8b4fb30f0faa5498e2025-01-15T02:44:30ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692023-01-011221122844026485RANDOM FATIGUE LIFE PREDICTION OF STABILIZER BAR BASED ON LOW LOAD STRENGTHENING (MT)HU YuXiaWANG HaiJieLIU XinTianTo explore the effect of low load strengthening on the fatigue life of parts under random load, the automobile stabilizer bar is taken as an example, and the collected random load signal is extrapolated to the whole life cycle by peak over threshold extrapolation method. Based on the extrapolated load signal, the distribution characteristics of its mean and amplitude are analyzed, and the two-dimensional joint probability distribution is established. According to the characteristic that the stabilizer bar is continuously subjected to complex random loads, the influence of mean and amplitude is considered to compile the two-dimensional load spectrum, and the low load strengthening theory is introduced. The life prediction based on linear fatigue cumulative damage theory（Miner rule） and low load strengthening theory is compared with the test results to verify the effectiveness and accuracy of life prediction based on low load strengthening under random load.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2023.05.028Random loadPeak over threshold extrapolationLow load strengtheningLife prediction |
| spellingShingle | HU YuXia WANG HaiJie LIU XinTian RANDOM FATIGUE LIFE PREDICTION OF STABILIZER BAR BASED ON LOW LOAD STRENGTHENING (MT) Jixie qiangdu Random load Peak over threshold extrapolation Low load strengthening Life prediction |
| title | RANDOM FATIGUE LIFE PREDICTION OF STABILIZER BAR BASED ON LOW LOAD STRENGTHENING (MT) |
| title_full | RANDOM FATIGUE LIFE PREDICTION OF STABILIZER BAR BASED ON LOW LOAD STRENGTHENING (MT) |
| title_fullStr | RANDOM FATIGUE LIFE PREDICTION OF STABILIZER BAR BASED ON LOW LOAD STRENGTHENING (MT) |
| title_full_unstemmed | RANDOM FATIGUE LIFE PREDICTION OF STABILIZER BAR BASED ON LOW LOAD STRENGTHENING (MT) |
| title_short | RANDOM FATIGUE LIFE PREDICTION OF STABILIZER BAR BASED ON LOW LOAD STRENGTHENING (MT) |
| title_sort | random fatigue life prediction of stabilizer bar based on low load strengthening mt |
| topic | Random load Peak over threshold extrapolation Low load strengthening Life prediction |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2023.05.028 |
| work_keys_str_mv | AT huyuxia randomfatiguelifepredictionofstabilizerbarbasedonlowloadstrengtheningmt AT wanghaijie randomfatiguelifepredictionofstabilizerbarbasedonlowloadstrengtheningmt AT liuxintian randomfatiguelifepredictionofstabilizerbarbasedonlowloadstrengtheningmt |