全钢化真空玻璃隔声性能仿真分析

Simulation Analysis of Sound Insulation Performance of Fully Tempered Vacuum Glass

摘要: 作为外立面建筑围护结构，玻璃外窗在建筑的隔声体系中起到了关键作用。本文利用LMS Virtual.Lab对全钢化真空玻璃的隔声性能进行仿真分析，并通过测试验证了仿真的合理性。通过对影响全钢化真空玻璃隔声性能的不同因素进行研究，结果表明，当玻璃厚度增加时其隔声量与吻合频率均会提高，但隔声量增加量在逐渐降低，当其两侧玻璃厚度有差异时其吻合频率亦会提高；支撑物间距增加时其中低频段隔声量虽有所提升，但高频段的吻合频率却随之降低。基于仿真结果制备不同规格的全钢化真空玻璃并进行隔声量测试，测试结果表明6T-0.3V-4T (70)规格的真空玻璃的隔声量高于同厚度下的5T-0.3V-5T (50)、5T-0.3V-5T (70)，略低于6T-0.3V-6T (70)，可作为全钢化真空玻璃的设计选择方案。

Abstract: As an exterior building enclosure structure, glass exterior windows play a crucial role in the sound insulation system of the building. This article uses LMS Virtual.Lab to simulate and analyze the sound insulation performance of fully tempered vacuum glass, and verifies the rationality of the simulation through testing. By studying the different factors that affect the sound insulation per-formance of fully tempered vacuum glass, the results show that as the thickness of the glass in-creases, its sound insulation and coincidence frequency both increase, but the increase in sound insulation gradually decreases. When there is a difference in the thickness of the glass on both sides, its coincidence frequency also increases; As the spacing between supports increases, although the sound insulation in the low frequency range increases, the matching frequency in the high fre-quency range decreases accordingly. Based on simulation results, different specifications of fully tempered vacuum glass were prepared and tested for sound insulation. The test results showed that the sound insulation of vacuum glass with 6T-0.3V-4T (70) specifications was higher than that of 5T-0.3V-5T (50) and 5T-0.3V-5T (70) with the same thickness, and slightly lower than that of 6T-0.3V-6T (70). It can be used as a design option for fully tempered vacuum glass.