Rotary fatigue tester with complex loads

US11378501B2 · kind B2 · utility

Assignee

• Southwest Petroleum University · CN

Inventors

• Zhi Zhang · Sichuan, CN
• Yuanjin Zhao · Sichuan, CN
• Duo Hou · Sichuan, CN
• Nan Cai · Sichuan, CN
• Xiankang Zhong · Sichuan, CN
• Pengfei Sang · Sichuan, CN
• Jian Dong Ding · Shanghai, CN
• Jinming Liu · Chengdu, CN
• Jiawei Wang · Beijing, CN

Key dates

• Filing date: Mar 25, 2020
• Grant date: Jul 5, 2022
• Expiry date: Oct 13, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2203/0242
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A rotary fatigue tester with complex loads includes a pump, a first motor, a second motor, a circulatory loop, an experimental kettle body, and a holding device. The experimental kettle body is a cylindrical tank, the circulatory loop is located on the experimental kettle body, a pump is located within the circulatory loop and is connected with a corrosive gas pipeline; the holding device is located within the experimental kettle body for fixing a test piece, a force-bearing pole is located at one side of the experimental kettle body for applying a shear force to the test piece, the holding device and the force-bearing pole are connected with the first motor and the second motor respectively. The rotary fatigue tester is able to simultaneously apply the axial alternating load and tangential alternating load to the test piece, for simulating the force of the test piece under complex loads.