About the Authors
- Pan Fang
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Affiliation School of Mechanical Engineering, Southwest Petroleum University, Chengdu, China
- Yongjun Hou
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* E-mail: yongjunhou@126.com
Affiliation School of Mechanical Engineering, Southwest Petroleum University, Chengdu, China
- Yanghai Nan
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Affiliation Department of Mechanical Engineering and Robotics, Universite Libre de Bruxelles, Brussel, Belgium
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: YH. Performed the experiments: PF. Analyzed the data: PF. Contributed reagents/materials/analysis tools: PF YN. Wrote the paper: PF YN.