【摘要】 NVH已经成为衡量一辆汽车品质是否优越的重要的技术指标之一,而阻尼材料在汽车中的应用在提升NVH性能方面扮演重要的角色.但根据已有的汽车阻尼材料减振降噪的性能指标选用阻尼材料,常常遇到材料性能指标优越但实际使用效果不佳的尴尬局面.现提出一种针对具体车型,通过与汽车整体有机结合,在车身上设计对比实验直观检测阻尼材料在特定车型上减振降噪性能的方式,避免单独阻尼材料性能优越而实际使用不佳的盲点,其减振降噪性能数据直观可信,而且使用相对简单,对汽车阻尼材料的选用和车身阻尼材料配置方法改进有着重要的作用.更多还原

【Abstract】 NVH has become one of the important technical indicators to measure a car’s quality. And the damping material plays an important role to improve the performance of NVH in the application on the car. However, when damping material was chosen on the basis of the existing quality indicator to reduce the vibration and noise on the car, there is a awkward situation that material quality indicator is superior while the actually effect is not perfect.Therefore, a new kind of test model is presented. It can directly detect the way of the performance of damping material in reducing vibration and noise through setting up comparison experiment on the cars, which avoids the awkward situation mentioned before and is relatively simple to use. The data of the quality indicators of reducing vibration and noise based on this new model is intuitive and credible. Above all, this new kind of test model is important for the selection of damping materials and improvement of configuration method on the specific type of car.更多还原