文章信息/Info

Title:

The Influence of Glass Micro-plate on the Damping Properties of Structures based on Polyurethane

作者:

胡毅鈞1; 歐陽肖2; 仲耿2; 高閃2; 魏浩2; 劉連河2; 3

1. 海軍裝備部駐沈陽地區(qū)軍代表局，遼寧沈陽110031；2. 哈爾濱工程大學(xué)，黑龍江哈爾濱150001；3. 青島海洋新材料科技有限公司，山東青島266101

Author(s):

HUYi-jun1; OUYANG Xiao2; ZHONGGen2; GAO Shan2; WEI Hao2; LIU Lian-he2; 3

關(guān)鍵詞:

阻尼材料; 阻尼結(jié)構(gòu); 填料; 玻璃鱗片; 復(fù)合損耗因子

DOI:

10.7502/j.issn.1674-3962.2014.09.11

文獻(xiàn)標(biāo)志碼:

A

摘要:

填料對阻尼材料和結(jié)構(gòu)的減振效果具有重要的影響，本文以聚氨酯阻尼材料、自由阻尼結(jié)構(gòu)和約束型阻尼結(jié)構(gòu)為研究對象，利用半功率帶寬法，考察聚氨酯阻尼材料中加入玻璃鱗片的含量、尺寸對懸臂梁結(jié)構(gòu)復(fù)合損耗因子的影響規(guī)律，為阻尼材料的改性及阻尼結(jié)構(gòu)設(shè)計提供基礎(chǔ)理論依據(jù)。結(jié)果表明，玻璃鱗片在聚氨酯阻尼樹脂中呈定向排列，形成多層片層結(jié)構(gòu)。隨著玻璃鱗片的加入，通過玻璃鱗片和阻尼樹脂之間的界面摩擦可消耗更多的能量使得復(fù)合損耗因子變大，但過高的玻璃鱗片含量會限制其運動，從而導(dǎo)致復(fù)合損耗因子降低；當(dāng)聚氨酯阻尼樹脂中加入的玻璃鱗片的尺寸逐漸變大時，阻尼結(jié)構(gòu)的復(fù)合損耗因子逐漸變大，且復(fù)合損耗因子增大的速度逐漸減小。

Abstract:

The filling plays a very important role in the damping performance of materials and structures. The major objective of this paper is to determine the effect of the dimensions and quantity of the glass flakes on the damping factor polyurethane materials and different damping structures, such as free damping structure and constrained damping structure, which can provide basic foundational data for the modification of damping materials and the damping structure design.The results showed glass flakes were directional arranged and formed a multilayer laminated structure in polyurethane resin. With the addition of glass flakes, the damping factor increased due to the more energy consumptionresulted from the interfacial friction between glass flakes and damping resin. But too much glass flakes led to decreasing of damping factor because of the limited interfacial friction. In addition, with the size of glass flakes increased, the damping factor of polyurethane damping structure increased, and the rate of growth decreased.