GRAZING HAVING EXCELLENT VIBROACOUSTIC DAMPING BEHAVIOR, METHOD FOR MANUFACTURING SUCH GRAZING, AND METHOD OF ACOUSTIC PROTECTION OF VEHICLE CABIN

摘要

PROBLEM TO BE SOLVED: To provide a grazing unit having a Young's modulus at 20°C larger than 800 MPa at a specific frequency corresponding to the critical frequency of the grazing unit in the range of ±30%.SOLUTION: A grazing unit 1 having a vibroacoustic damping behavior includes at least one glass sheet 10 and at least one vibroacoustic damping section 2 which is attached to at least one surface of the glass sheet and which includes at least one garment 20 made of a damping material having a loss factor larger than 0.2. The section 2 is not combined with any of other devices on the opposite side of the glass sheet.