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介绍了汽车车内噪声的评价指标和CA1091K2L2型汽车噪声控制的研究成果。车内噪声的控制,应首先考虑抑制发动机的辐射噪声。在驾驶室密封好的前题下,应对透声严重的驾驶室围板和底板采取隔声措施,使车内噪声降到最低程度,然后再考虑吸声材料的使用以及避免驾驶室空腔共振的措施。
This paper introduces the evaluation index of noise in automobile and the research results of noise control in CA1091K2L2 automobile. Noise control in the car, the first consideration should be to suppress the emission noise of the engine. Under the precondition that the cab is sealed well, sound insulation measures should be taken on the soundproof cab walls and floor to minimize the noise inside the car, and then consider the use of sound-absorbing materials and to avoid cab cavity resonance The measure.