汽车制造商如今都关注在车身和底盘的轻量化以实现更好的燃油经济性,因为车辆更轻,驱动所需的燃料消耗就越少。因此,汽车部件也必须相应地使用更轻的材料,如高分子或者碳纤维等高级材料,有助于提高汽车的燃油经济性、安全性和舒适性。设计更轻的汽车为声学的各种创新解决方案开了大门。而汽车材料供应商又面临另外一个新挑战:就有效降噪的同时不增加汽车质量这一问题,他们必须有相应的解决方案。3M公司在此领域有着20多 Car manufacturers are now paying attention to lighter weight in the bodywork and chassis for better fuel economy because the lighter vehicles require less fuel for the drive. Therefore, automotive components must also use lighter materials, such as high-grade materials such as polymers or carbon fibers, to help improve fuel economy, safety and comfort in automobiles. Lighter cars open the door for a variety of innovative acoustic solutions. Automotive materials suppliers, on the other hand, face another new challenge: they must have a solution to the problem of noise reduction without increasing the quality of the car. 3M company in this area has more than 20