The invention relates to the technical field of noise reduction, and provides a perforated plate sound absorption system for rotary mechanical equipment, a control method and a ship. The perforated plate sound absorption system for the rotary mechanical equipment comprises a sound absorption structure and a stepping motor, and the sound absorption structure is provided with a plurality of through holes; the stepping motor is connected with the sound absorption structure, the stepping motor is provided with a plurality of gears, and when the gears are adjusted, the area of each through hole can be adjusted so as to obtain a plurality of sound absorption coefficient curves of the sound absorption structure when the areas of the through holes are different. According to the perforated plate sound absorption system facing the rotary mechanical equipment, when the gear of the stepping motor is adjusted, the perforated area of the sound absorption structure can be adjusted, and a plurality of sound absorption coefficient curves under different perforated areas are obtained; and the gear of the stepping motor when the sound absorption effect is optimal can be obtained according to the approaching relation between the rotation frequency of the rotary mechanical equipment and the sound absorption coefficient curve, and self-adaptive adjustment of the perforated plate sound absorption system is achieved.

    本发明涉及降噪技术领域,提供一种面向旋转机械设备的穿孔板吸声系统、控制方法及船舶。上述的面向旋转机械设备的穿孔板吸声系统,包括:吸声结构和步进电机,吸声结构设有多个穿孔;步进电机与吸声结构连接,步进电机设有多个档位,档位调节时可对每个穿孔的面积进行调节,以获得不同穿孔面积时吸声结构的多个吸声系数曲线。上述的面向旋转机械设备的穿孔板吸声系统,在步进电机的档位调节时,可对吸声结构的穿孔的面积进行调节,获得不同穿孔面积下的多个吸声系数曲线,进而可根据旋转机械设备的旋转频率与吸声系数曲线之间的接近关系得到吸声效果最优时步进电机的档位,实现了穿孔板吸声系统的自适应调节。


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    Title :

    Perforated plate sound absorption system facing rotary mechanical equipment, control method and ship


    Additional title:

    面向旋转机械设备的穿孔板吸声系统、控制方法及船舶


    Contributors:
    CAO GUANGMING (author) / KE ZHIWU (author) / DAI LU (author) / HE TAO (author) / WEI ZHIGUO (author) / WU MUYUN (author) / LIU YONG (author) / LYU WEIJIAN (author) / LI YONG (author) / ZHENG ZHAOLI (author)

    Publication date :

    2024-05-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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