Beijing University of Technology

Shandong Jianzhu University

Beijing Precision Machinery & Engineering Research Co., Ltd.

China National Machine Tool Quality Supervision Testing Center

Zuguang Huang

Shuai Ji

Jinjiang Wang

Dequan Wang

Xiaofeng Zhu

Xiaoqin Hao

Junyan Xing

Nana Niu

Yaru Hou

Huiling Ren

Ruijuan Xue

Tianliang Hu

Hepeng Ni

Yuhong Dai

Heqiang Liu

Chengrui Zhang

An electromagnetic immunity test system includes a data acquisition and control device, a linear module, an electromagnetic disturbance simulator, and an upper computer. The data acquisition and control device is in a data connection to the linear module, the electromagnetic disturbance simulator, and the upper computer. The linear module includes a grating ruler; and the linear module is disposed on the numerical control machine tool to measure location data of the sliding table of the numerical control machine tool and transmit the location data to the data acquisition and control device. The electromagnetic disturbance simulator is configured to generate and transmit an electromagnetic signal to the numerical control system. The data acquisition and control device is configured to read the location data in real time and transfer the real-time location data to the upper computer.

Electromagnetic immunity test system and control method thereof

The present invention discloses a method for constructing a surface stress distribution cloud map based on critical refraction longitudinal wave detection. The method comprises: firstly, meshing a surface of a detected article; secondly, The mean transverse stress on different grid lines and the mean longitudinal stress on different grid lines were obtained by the critical refraction longitudinal wave detection method; next, calculating the equivalent stress of each mesh node according to the mean transverse stress on different mesh transverse lines and the mean longitudinal stress on different mesh longitudinal lines on the surface of the detected article; and finally, drawing a stress distribution cloud map of the surface of the detected article according to the equivalent stress. The present invention can obtain the stress situations at different points on the surface of the detected article.

Method for constructing surface stress distribution cloud map based on critical refraction longitudinal wave detection

Growing community of inventors

Beijing, China

Zuguang Huang