| 车轮多边形对轮轨静态匹配的影响 |
| |
| 引用本文： | 宋恩栋,陈剑.车轮多边形对轮轨静态匹配的影响[J].噪声与振动控制,2009,29(3):92-98. |
| |
| 作者姓名： | 宋恩栋 陈剑 |
| |
| 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： | 国家高技术研究发展计划(863计划)，国家自然科学基金，安徽省科技攻关项目 |
| |
| 摘 要： | 摘 要：为了分析车轮多边形对轮轨静态匹配的影响，设定车轮半径在圆周上具有周期性变化，并且考虑车轮横向磨耗的改变，建立多边形车轮空间模型。由于迹线法不适用于多边形车轮，本文在空间车轮模型上搜索与钢轨距离最小点，得到轮轨接触位置和几何参数。采用Hertz接触理论和Polach蠕滑力模型计算轮轨法向应力和蠕滑力，分析多边形车轮对轮轨接触静力学的影响。计算结果显示：多边形车轮的横向磨耗对轮轨静态匹配影响比较微弱，周向磨耗会引起轮轨接触斑和法向应力的周期性变化，影响程度随阶次的增加而增强。
|
| 关 键 词： | 振动与波 轮轨接触 车轮多边形 静态匹配 轮轨蠕滑力 |
| 收稿时间： | 2018-08-06 |
Subjective and Objective Evaluation of Vehicle Sound Quality |
| |
| SONG En-dong,CHEN Jian.Subjective and Objective Evaluation of Vehicle Sound Quality[J].Noise and Vibration Control,2009,29(3):92-98. |
| |
| Authors: | SONG En-dong CHEN Jian |
| |
| Affiliation: | (Institute of Sound and Vibration Research, Hefei University of Technology, Hefei 230009 ,China) |
| |
| Abstract: | In this paper, the sound samples are acquired from different positions of a stationary car. The subjective preference evaluation of sound quality is carried out with the paired comparison method. People with different preference are divided into two classes by hierarchical cluster method. The objective sound quality parameters, such as pressure level, sharpness and roughness are used to explain the cause of similarities and differences between the two kinds of people with the frequency spectrum technique. |
| |
| Keywords: | acoustics psychoacoustice subjective evaluation objective evaluation preference |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《噪声与振动控制》浏览原始摘要信息 |
|
点击此处可从《噪声与振动控制》下载全文 |
