• 肋骨惯性矩变化会引起结构损失曲线隔声低谷位置变化

    The position of minimum values on the sound transmission loss curve varies with the changes made on plate thickness and the moment of inertia of stiffeners.

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  • 道路规划设计充分考虑扰民问题,必要路段建设隔声屏障降噪结构低噪路面

    The motorway planning will give full consideration of traffic noise, at the proper sections, noise-deafening wall, noise-deafening structure and low-noise road surface will be adopted.

    youdao

  • 本文提出了试件结构测量一种方法

    In this paper, a new method is proposed for the measurements of sound insulation of light structures using small samples.

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  • 研究表明,影响结构墙体因素墙板面密度、规格和间距、玻璃纤维棉的容重和厚度。

    To fabricate wood structure walls with good sound insulation, the paper studied the influences of building details on the sound insulation of wood structure walls.

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  • 采用自制的试验装置泡沫实体铝复合结构性能研究。

    The sound insulation property of aluminum foam(Al-foam) with composite structure was studied using a self-made equipment and sound detector.

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  • 隔声去耦覆盖一种重要的舰船材料结构,敷设于潜艇耐压壳表面

    Isolating-sound and decoupling coating is a important underwater acoustic material and structure, and it is coated the outer surface of the submarine body which is used to support sound press.

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  • 研究无限受点激励时质量结构传递阻抑,采用基于能量观点的振度来定义阻振质量的阻抑作用。

    Vibration isolation mass attenuating transmission of the plate flexural wave is analyzed with the force excitation applied on an infinite plate.

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  • 根据阻尼减原理,对某型双层客车后部结构提出改进措施使车内噪达到国家规定

    An improved back structure is proposed according to the principle of sound absorption. sound insulation and damping vibration. It can lower inner noise so as to meet the state standard.

    youdao

  • 根据阻尼减原理,对某型双层客车后部结构提出改进措施使车内噪达到国家规定

    An improved back structure is proposed according to the principle of sound absorption. sound insulation and damping vibration. It can lower inner noise so as to meet the state standard.

    youdao

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