2023年4月13日 · The three parts of NVH cover a range of sound indicators — how it is heard, how it is felt, and whether it is perceived to be pleasant or annoying. Noise: the sound propagation caused by a specific object, such as the hum of an opening sunroof, an engine, a door being slammed, an HVAC system, or seat belt buckle clicks.

NVH是三个英文单词 Noise， Vibration 和 Harshness 首字母的缩写，是汽车噪声、振动和舒适性等各项指标的总称。 由于汽车结构振动会产生噪声，进而影响到舒适性，而当舒适性有问题时，必然存在相应的振动噪声问题。 因此，三者在汽车振动噪声中是同时出现且又密不可分，因而常把它们放在一起进行研究。 简单地讲，乘员在汽车中的一切触觉、听觉乃至视觉感受都属于NVH研究的范畴，主要研究包括整车及系统主要零部件的NVH性能。 虽然各行各业的产品都有振动噪声 …

Covestro provides a range of PU engine cover NVH solutions with the Bayfit® SA PU foam, all of which are developed to meet the diverse needs of customers, including flexible PU foam combined with PP and PA, PU integral foam, spray in-mold coating (IMC) combined with flexible PU foam, and IMC plus PU spray skin combined with flexible PU foam.

Sound Absorption Pads block and absorb noise entering through the floor of the vehicle. Under Cover is attached to the body panel at the bottom of the engine room to reduce the noise from the road while driving and protects the underside of the engine.

Noise, vibration, and harshness (NVH), also known as noise and vibration (N&V), is the study and modification of the noise and vibration characteristics of vehicles, particularly cars and trucks. While noise and vibration can be readily measured, harshness is a subjective quality, and is measured either via jury evaluations, or with analytical ...

汉高的隔音密封胶条有助于阻止噪音通过金属覆盖件之间的最小间隙传播到金属板之间各种尺寸的间隙中。 我们的二维 NVH 胶条采用挤压工艺，可根据零件所需的独特厚度进行定制。 经过挤压后，胶条会形成简单的直线或冲切成适合特定车辆位置的独特形状。 车身密封条具有多功能性，不仅可以阻止声音进入车辆，而且防水、防尘和阻止空气进入。 我们的车身密封条包括泵送和挤压两种形式，可作为焊缝密封剂或用于不可焊接的应用领域，具有高抗冲刷性、高弹性和耐腐蚀性， …

NVH tools and simulations empowers engineers to address NVH challenges with greater precision. As electrification, regulatory demands and innovation reshape industry expectations, a comprehensive approach with advanced NVH solutions ensures that products meet performance goals while delivering optimal

Our solutions for Noise, Vibration and Harshness (NVH) improve the driving experience inside a vehicle while increasing comfort and safety. Customer solutions that make cars quieter by reducing structure- and air-born noise are at the center of our broad NVH product portfolio.

2009年4月20日 · The study demonstrates that a well-designed thermoplastic cam cover can achieve similar structural requirements (NVH) as the metal cam covers while providing substantial cost saving and weight reduction.

2010年1月19日 · NVH performance of the thermoplastic composite covers was processed for spatial transmissibility, sound pressures and psychoacoustic parameters. Results demonstrate that a well-designed thermoplastic composite cover can achieve the same structural requirements (NVH) as other lightweight metal covers (magnesium and aluminium), in addition to ...