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| 震源振动器平板损伤机理及其疲劳寿命预测研究 | |
| 引用本文： | 陈振,周阳,敬爽,黄志强,陈言. 震源振动器平板损伤机理及其疲劳寿命预测研究[J]. 工程设计学报, 2019, 26(6): 658-665. DOI: 10.3785/j.issn.1006-754X.2019.00.013 |
| 作者姓名： | 陈振 周阳 敬爽 黄志强 陈言 |
| 作者单位： | 西南石油大学机电工程学院,四川成都610500;西南石油大学机电工程学院,四川成都610500;西南石油大学机电工程学院,四川成都610500;西南石油大学机电工程学院,四川成都610500;西南石油大学机电工程学院,四川成都610500 |
| 基金项目： | 国家自然科学基金青年基金资助项目（41802198） |
| 摘 要： | 振动器是可控震源地震信号激发的关键装置，长期宽、高频地震波激发致使振动器平板焊接部位出现裂纹甚至疲劳失效，这不仅会大大减短平板工作寿命，而且严重影响震源信号质量。由此，对平板开裂断口的微观形貌进行分析，掌握平板疲劳损伤区域内损伤特征、裂纹扩展规律，揭示平板开裂断口损伤机理。针对平板疲劳损伤模式和特点，开展平板“三点弯曲”疲劳试验，拟合平板 |
| 关 键 词： | 振动器平板 损伤机理 疲劳寿命 疲劳试验分析 |
| 收稿时间： | 2019-12-28 |
Study on damage mechanism and fatigue life prediction of seismic vibrator baseplate |
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| CHEN Zhen,ZHOU Yang,JING Shuang,HUANG Zhi-qiang,CHEN Yan. Study on damage mechanism and fatigue life prediction of seismic vibrator baseplate[J]. Journal of Engineering Design, 2019, 26(6): 658-665. DOI: 10.3785/j.issn.1006-754X.2019.00.013 | |
| Authors: | CHEN Zhen ZHOU Yang JING Shuang HUANG Zhi-qiang CHEN Yan |
| Abstract: | The vibrator is the key device for the excitation of the seismic signal of vibroseis. Long-term wide and high-frequency seismic wave excitation causes cracks or even fatigue failure in the welded part of the vibrator baseplate, which will not only greatly reduce the working life of the baseplate, but also seriously affect the source signal quality. Therefore, the micromorphology of the baseplate cracking fracture was analyzed. The damage characteristics and crack propagation law of the fatigue damage area of the baseplate were grasped, which revealed the damage mechanism of the baseplate cracking fracture. According to the fatigue damage mode and characteristics of the baseplate, the "three-point bending" fatigue test of the baseplate was carried out, and the |
| Keywords: | vibrator baseplate damage mechanism fatigue life fatigue test analysis |
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