| 踏面制动尖叫噪声的有限元分析 |
| |
| 引用本文： | 陈光雄,戴焕云,曾京,周仲荣.踏面制动尖叫噪声的有限元分析[J].机械工程学报,2009,45(3). |
| |
| 作者姓名： | 陈光雄 戴焕云 曾京 周仲荣 |
| |
| 作者单位： | 西南交通大学牵引动力国家重点实验室,成都,610031 |
| |
| 基金项目： | 教育部新世纪优秀人才支持计划，两南交通大学创新团队培育计划 |
| |
| 摘 要： | 利用ABAQUS软件建立铁路货车车轮踏面制动系统有限元模型,对其进行制动摩擦尖叫噪声的有限元复特征值分析.根据复特征值实部的正负判断系统发生尖叫噪声的可能性,如果有实部为正的特征值,则可判断系统有发生尖叫噪声的趋势.在ABAQUS建模方法中,闸瓦与车轮之间的法向力根据接触计算确定,不需假设接触弹簧,可以方便处理非平面滑动接触尖叫噪声问题.利用该模型,研究滑动摩擦因数、闸瓦压力角、闸瓦压力和转动方向对尖叫噪声的影响.研究结果显示,闸瓦压力角对制动尖叫噪声有重要影响,当闸瓦压力角α=5°时,制动系统发生尖叫噪声的影响.研究结果显示,摩擦因数越大,系统发生尖叫噪声的趋势就越大;闸瓦压力越大,尖叫噪声发生的趋势就越大.车轮逆时针转动比顺时针转动更容易引起尖叫噪声.
|
| 关 键 词： | 噪声 尖叫 制动 摩擦 有限元 |
Finite Element Analysis of the Squeal Propensity for a Pad-wheel Tread Brake System |
| |
| CHEN Guangxiong,DAI Huanyun,ZENG Jing,ZHOU Zhongrong.Finite Element Analysis of the Squeal Propensity for a Pad-wheel Tread Brake System[J].Chinese Journal of Mechanical Engineering,2009,45(3). |
| |
| Authors: | CHEN Guangxiong DAI Huanyun ZENG Jing ZHOU Zhongrong |
| |
| Affiliation: | Traction Power State Key Laboratory;Southwest Jiaotong University;Chengdu 610031 |
| |
| Abstract: | A finite element model of a single pad-wheel tread brake system for railway freight cars is established by using ABAQUS software. A complex eigenvalue analysis of the brake system is performed. The occurrence propensity of brake squeal is evaluated on the basis of positive and negative of the real parts of eigenvalues. If there are one or more positive real parts, the system is considered to have the propensity of squeal occurrence. In the ABAQUS approach, the direct contact coupling at the wheel/pad interf... |
| |
| Keywords: | Noise Squeal Brake Friction Finite element |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
