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| Analysis on Dynamic Characteristics of Air-laid Paper Cylinder |
| Received:September 03, 2019 |
| DOI：10.11981/j.issn.1000-6842.2020.04.42 |
| Key Words:air-laid paper;forming cylinder;dynamics analysis;vibration |
| Fund Project:国家自然科学基金项目（51475366）；西安市企业技术创新工程计划项目（CX13105）。 |
| Author Name | Affiliation | E-mail | | YUAN Qilong* | School of Mechanical and Precision Instrument Engineering， Xi’an University of Technology， Xi’an， Shaanxi Province， 710048 | yuanql@xaut.edu.cn | | LI Chunxia | School of Mechanical and Precision Instrument Engineering， Xi’an University of Technology， Xi’an， Shaanxi Province， 710048 | | | HE Wanlong | School of Mechanical and Precision Instrument Engineering， Xi’an University of Technology， Xi’an， Shaanxi Province， 710048 | | | LI Yan | School of Mechanical and Precision Instrument Engineering， Xi’an University of Technology， Xi’an， Shaanxi Province， 710048 | | | YAN Heping | Shaanxi Technology Mechanical and Electrical Technology Co.， Ltd.， Xi’an， Shaanxi Province， 710018 | |
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| Abstract: |
| In order to improve the operation efficiency and paper quality of the air-laid paper production line， the dynamic characteristics of the air-laid paper forming cylinder were analyzed by ANSYS workbench software according to the airflow forming principle of the forming distributor. The natural frequency and vibration mode of the forming cylinder in free state and constrained condition were studied， and effects of rotating speed and length of the cylinder on the maximum stress and radial displacement of the forming cylinder were discussed. The results showed that the first-order critical rotational speed and excitation speed in the constrained modal analysis were 967.38 and 725.54 r/min， respectively， and the working speed was less than the excitation speed， indicating the forming cylinder does not generate resonance in the high-speed motion. When the working speed was at 300 r/min， the stress at the joint between the cylinder and the bulkhead was large， and stressed at the ends of the bulkhead was small， the deformation of the middle position of the cylinder was the largest， and the maximum deformation was 3.14 mm， and the equivalent stress and the maximum radial displacement of the forming cylinder increase as the cylinder speed and length increased. |
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