本文選題：隔振系統(tǒng) + 調(diào)諧質(zhì)量阻尼器�。� 參考：《沈陽工業(yè)大學(xué)》2014年碩士論文

【摘要】：隔振系統(tǒng)作為控制振動(dòng)傳輸過程中隔離振動(dòng)的重要手段，在工程實(shí)際有著大量應(yīng)用。調(diào)諧質(zhì)量阻尼器（TMD）在振動(dòng)控制方面也有著大量的應(yīng)用。但在以往的調(diào)諧質(zhì)量阻尼器系統(tǒng)的設(shè)計(jì)中，，大都以調(diào)諧質(zhì)量阻尼器連接在剛性地基上為基礎(chǔ)。然而在實(shí)際情況中，地基并非完全剛性，因此本文主要研究地基為彈性下，調(diào)諧質(zhì)量阻尼器對(duì)隔振效果的影響，利用振動(dòng)理論及分析方法，同時(shí)結(jié)合MATLAB編程，分別對(duì)附加TMD及MTMD的單自由度隔振系統(tǒng)、附加TMD的兩自由度隔振系統(tǒng)進(jìn)行動(dòng)力學(xué)分析及優(yōu)化，得到對(duì)影響隔振系統(tǒng)振動(dòng)效果較大的參數(shù)。本文主要進(jìn)行了以下工作： （1）對(duì)隔振系統(tǒng)的基本原理及TMD和MTMD的減振機(jī)理及其相關(guān)參數(shù)的優(yōu)化設(shè)計(jì)方法進(jìn)行了介紹與討論，并利用數(shù)值仿真方法，分別討論了TMD的質(zhì)量比、頻率比、阻尼比對(duì)減振效果的影響。 （2）通過對(duì)彈性基礎(chǔ)上帶有TMD及MTMD的單自由度隔振系統(tǒng)、彈性基礎(chǔ)上帶有TMD的兩自由度隔振系統(tǒng)進(jìn)行了物理及數(shù)學(xué)建模。對(duì)彈性基礎(chǔ)上帶有TMD的單自由度隔振系統(tǒng)討論了TMD的質(zhì)量比、頻率比及阻尼比對(duì)隔振系統(tǒng)隔振效果的影響。 （3） MTMD作為TMD的一種擴(kuò)展，本文著重討論了MTMD總質(zhì)量比相同數(shù)量不同和MTMD單質(zhì)量比相同數(shù)量不同兩種在優(yōu)化后的情況下對(duì)隔振系統(tǒng)的力傳遞率的影響。之后又對(duì)不同基礎(chǔ)頻率對(duì)帶有MTMD的隔振系統(tǒng)進(jìn)行了隔振性能分析。 （4）兩自由度的隔振系統(tǒng)不僅考慮了隔振系統(tǒng)垂直方向的振動(dòng)，同時(shí)也考慮的隔振系統(tǒng)的轉(zhuǎn)動(dòng)問題。在兩自由度隔振系統(tǒng)上附加TMD以期同時(shí)控制其兩自由度的振動(dòng)。 通過以上工作，以隔振系統(tǒng)力傳遞率為優(yōu)化問題的優(yōu)化目標(biāo)仿真結(jié)果表明，在隔振系統(tǒng)上附加TMD或MTMD可以對(duì)隔振系統(tǒng)的隔振效果起到良好效果，特別是當(dāng)基礎(chǔ)的固有頻率在隔振系統(tǒng)的固有頻率附近時(shí)。利用TMD控制兩自由度隔振系統(tǒng)時(shí)，單TMD無法同時(shí)對(duì)隔振系統(tǒng)的兩個(gè)自由度進(jìn)行控制。
[Abstract]:As an important means to control vibration transmission, vibration isolation system is widely used in engineering. Tuned mass damper (TMD) is also widely used in vibration control. But in the previous design of tuned mass dampers, the tuned mass dampers are mostly based on rigid foundation. However, in practice, the foundation is not completely rigid, so this paper mainly studies the effect of tuned mass dampers on vibration isolation effect under elastic foundation, using vibration theory and analysis method, and combining with MATLAB programming. The dynamic analysis and optimization of the vibration isolation system with single degree of freedom and MTMD and the vibration isolation system with two degrees of freedom with TMD are carried out, and the parameters that affect the vibration effect of the isolation system are obtained. The main work of this paper is as follows: 1) the basic principle of vibration isolation system, the vibration absorption mechanism of TMD and MTMD and the optimization design method of relative parameters are introduced and discussed. The mass ratio and frequency ratio of TMD are discussed by using numerical simulation method. The effect of damping ratio on damping effect. 2) the physical and mathematical models of a single degree of freedom vibration isolation system with TMD and MTMD on elastic foundation and two degrees of freedom isolation system with TMD on elastic foundation are established. The effects of mass ratio, frequency ratio and damping ratio of TMD on isolation system with TMD on elastic foundation are discussed. 3) as an extension of TMD, this paper mainly discusses the effect of two kinds of MTMD on the force transfer rate of vibration isolation system under optimized conditions: the same quantity of MTMD and the same quantity of MTMD. Then the vibration isolation performance of the vibration isolation system with MTMD is analyzed with different basic frequencies. The vibration isolation system with two degrees of freedom not only considers the vertical vibration of the isolation system, but also considers the rotation of the isolation system. In order to control the vibration of two degrees of freedom at the same time, TMD is added to the vibration isolation system of two degrees of freedom. Through the above work, the simulation results show that adding TMD or MTMD to the vibration isolation system can have a good effect on the vibration isolation system, taking the force transfer rate of the isolation system as the optimization objective, the simulation results show that the vibration isolation system can be effectively isolated by adding TMD or MTMD to the vibration isolation system. Especially when the natural frequency of the foundation is near the natural frequency of the vibration isolation system. When TMD is used to control the vibration isolation system of two degrees of freedom, the single TMD can not control the two degrees of freedom of the isolation system at the same time.
【學(xué)位授予單位】：沈陽工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TB535.1

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