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METHOD FOR THE SELECTION OF AN INTERLAYER FOR AN ACOUSTIC ATTENUATOR, INTERLAYER FOR AN ACOUSTIC ATTENUATOR UND GLAZING COMPRISING SUCH AN INTERLAYER
METHOD FOR THE SELECTION OF AN INTERLAYER FOR AN ACOUSTIC ATTENUATOR, INTERLAYER FOR AN ACOUSTIC ATTENUATOR UND GLAZING COMPRISING SUCH AN INTERLAYER
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机译:声学衰减器的中间层的选择方法,声学衰减器的中间层和包括这种中间层的玻璃
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摘要
A method for selecting a viscoelastic plastic interlayer including two outer layers and a central layer. The interlayer is for incorporation between two glass sheets of a glazing unit. The method of selection includes providing first and second components respectively as the central layer and the outer layers, and measuring the shear modulus G of the first and second components. The material of the second component is selected only if G is a certain value at a specific temperature and frequency range. The thickness h of the first component is set so that h is a specific value and so that g=G/h is within a specific range of values at a specific temperature and frequency range. The method optimizes the damping of the second and third natural frequencies of a vehicle windshield without weighing down the windshield.
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机译:一种用于选择包括两个外层和一个中心层的粘弹性塑料中间层的方法。中间层用于结合在玻璃单元的两个玻璃板之间。选择方法包括分别提供第一和第二组分作为中心层和外层,以及测量第一和第二组分的剪切模量G。仅当G在特定温度和频率范围内为某个特定值时,才选择第二组分的材料。设定第一成分的厚度h,使得h是特定值,并且使得g = G / h在特定温度和频率范围内在特定值范围内。该方法优化了车辆挡风玻璃的第二和第三固有频率的阻尼,而不会压低挡风玻璃。
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