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| 湿式多片制动器衬片压力分布的影响因素 | |
| 引用本文： | 孙冬野,秦大同,王玉兴,诸文农.湿式多片制动器衬片压力分布的影响因素[J].农业机械学报,1999,30(1):68-72. |
| 作者姓名： | 孙冬野 秦大同 王玉兴 诸文农 |
| 作者单位： | 1. 重庆大学机械传动国家重点实验室,400044,重庆市 2. 山东工程学院汽车系,255012,淄博市 3. 吉林工业大学工程机械系,130025,长春市 |
| 基金项目： | 国家“八五”重大引进技术消化吸收项目 |
| 摘 要： | 充分考虑湿式多片制动器多构层，有间隙的结构和特点，采用间隙单元了湿式多片制动器衬片压力分布的有限元分析模型并通过台架试验验证了该有限元模型的正确性，在此基础上，利用有限单元法进一步探讨了湿式多片制动器多种结构参数对衬片压力分布的影响规律，并针对湿式多制动器设计原理和方法提出了一些新观点。 |
| 关 键 词： | 制动器 压力分布 有限元法 |
STUDY ON INFLUENCED FACTORS OF LINING PRESSURE DISTRIBUTION OF WET MULTIDISC BRAKE |
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| Sun Dongye,Qin Datong,Wang Yuxing,Zhu Wennong.STUDY ON INFLUENCED FACTORS OF LINING PRESSURE DISTRIBUTION OF WET MULTIDISC BRAKE[J].Transactions of the Chinese Society of Agricultural Machinery,1999,30(1):68-72. | |
| Authors: | Sun Dongye Qin Datong Wang Yuxing Zhu Wennong |
| Institution: | Sun Dongye Qin Datong (Chongqing University) Wang Yuxing (Shandong Institute of Engineering) Zhu Wennong (Jilin University of Technology) |
| Abstract: | The failure of a wet multidisc brake is caused by nonrational lining pressure distribution leading to great temperature gradient. Considering the structural characters of wet multidisc brake that consists of many layers and gaps between steel plates and friction plates, a finite element model on lining pressure distribution of wet multidisc brake was established with gap elements. The experiments in laboratory verified the accuracy of the model. Based on this model, authors analyzed the influence of some structural parameters on initial pressure distributions by the finite element method. The results show that the structural shape of the piston is the key factor reducing the difference of lining pressure distribution between steel plates and friction plates. The optimal pattern of the piston can make all lining pressures approach to the ideal pressure distribution, and avoid the occurrence of high local temperatures that stem from thermomechanical phenomena between friction pairs. In order to achieve the uniform temperature distribution along the radial direction of steel plates, a new isothermal design rule is proposed for wet multidisc brake. |
| Keywords: | Brake Pressure distribution Finite element methods |
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