【摘要】：嵌入式共固化阻尼復(fù)合材料結(jié)構(gòu)因其具有輕質(zhì)、大阻尼、高剛度等特性,而在航空、航天、快速空間運載器等高科技領(lǐng)域有著廣泛的應(yīng)用前景。本文在前人對嵌入式共固化復(fù)合材料結(jié)構(gòu)制作工藝研究的基礎(chǔ)上,提出了穿孔阻尼結(jié)構(gòu)和網(wǎng)格阻尼結(jié)構(gòu)制作的新方法,并通過靜力學(xué)性能實驗探究了這種材料的拉伸和彎曲性能;通過動力學(xué)性能實驗及有限元數(shù)值模擬方法對其動力學(xué)性能隨幾何結(jié)構(gòu)參數(shù)變化規(guī)律進行探究,研究結(jié)論為嵌入式共固化復(fù)合材料結(jié)構(gòu)動力學(xué)性能設(shè)計和進一步廣泛應(yīng)用奠定了堅實的基礎(chǔ)。主要研究工作和創(chuàng)新點如下:(1)探索了用雙面刷涂工藝制作嵌入式共固化連續(xù)阻尼復(fù)合材料結(jié)構(gòu)的新工藝;提出了用層間過渡法制作嵌入式共固化穿孔阻尼和網(wǎng)格阻尼復(fù)合材料結(jié)構(gòu)的新方法;(2)采用雙面刷涂法制作了連續(xù)阻尼結(jié)構(gòu)嵌入式共固化復(fù)合材料構(gòu)件,并通過面內(nèi)拉伸測試和層間拉伸性能測試,研究了該種復(fù)合材料靜力學(xué)承載能力。(3)首次通過三點彎曲實驗研究了阻尼層厚度和鋪層角度對嵌入式共固化復(fù)合材料彎曲剛度的影響,獲得了彎曲性能參數(shù)隨幾何結(jié)構(gòu)參數(shù)的變化規(guī)律。(4)通過實驗和有限元數(shù)值模擬的方法研究了不同的幾何參數(shù)及鋪層角度對嵌入式共固化網(wǎng)格阻尼結(jié)構(gòu)和穿孔阻尼結(jié)構(gòu)的動力學(xué)性能的影響規(guī)律,為復(fù)雜阻尼結(jié)構(gòu)的動力學(xué)分析應(yīng)用奠定基礎(chǔ)。
[Abstract]:Because of its light weight, large damping and high stiffness, embedded co-curing damping composite structure has a wide application prospect in aviation, aerospace, rapid space vehicle and other high-tech fields. Based on the previous research on the fabrication technology of embedded co-solidified composite structure, a new method of making perforated damping structure and grid damping structure is proposed in this paper. The tensile and bending properties of the material were investigated by statics experiment, and the variation of dynamic properties with geometric structure parameters was investigated by means of dynamic performance experiment and finite element numerical simulation. The research results lay a solid foundation for the design and further application of the structural dynamic properties of embedded co-curing composites. The main research work and innovations are as follows: (1) A new process of making embedded co-curing continuous damping composite structure with double-side brush coating process is explored; In this paper, a new method to fabricate embedded co-solidified perforated damping and grid damping composite structures by interlaminar transition method is proposed. (2) continuous damping structure embedded co-curing composite structures are fabricated by double-side brush coating method. And through in-plane tensile test and interlayer tensile test, The statics bearing capacity of the composite is studied. (3) the influence of damping layer thickness and layer angle on the bending stiffness of embedded co-solidified composite is studied by three-point bending experiment for the first time. The variation of bending performance parameters with geometric structure parameters was obtained. (4) different geometric parameters and layering angles were studied by experiment and finite element numerical simulation to the embedded co-solidified grid damping structure and perforation damping. The influence of the dynamic performance of the structure, It lays a foundation for dynamic analysis and application of complex damped structures.
【學(xué)位授予單位】：青島理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TB33

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