本文關(guān)鍵詞：基于振動力和風力作用的服裝仿真研究　出處：《西南交通大學》2016年碩士論文　論文類型：學位論文

  更多相關(guān)文章： 服裝建模 服裝仿真 四元數(shù) 振動力 風力

【摘要】：近年來,虛擬現(xiàn)實技術(shù)已經(jīng)廣泛應用到各行各業(yè),在服裝領域的應用研究備受關(guān)注。虛擬人服裝動畫能夠模擬服裝模型跟隨虛擬角色的肢體動作產(chǎn)生相應的運動、變形等三維動畫效果,隨著三維技術(shù)的不斷發(fā)展和廣泛應用,三維虛擬服裝動態(tài)仿真逐漸成為虛擬現(xiàn)實領域研究的熱點和難點。在動漫影視、3D網(wǎng)絡游戲、虛擬試衣和虛擬時裝表演等領域中,我們可以感受到三維服裝帶給我們的強烈視覺效果。三維服裝的深入研究不僅具有廣闊的應用前景和經(jīng)濟價值,還可以促進和推動相關(guān)學科的發(fā)展和創(chuàng)新。為了真實地模擬服裝在外力作用下的動態(tài)效果,本文提出了一種基于四元數(shù)產(chǎn)生振動運動的方法。該方法首先利用橢圓的參數(shù)方程,自上而下逐層的快速構(gòu)造服裝模型,接著為模型添加質(zhì)點-彈簧結(jié)構(gòu),服裝最上兩層質(zhì)點的相對位置保持不變,彈簧的彈性系數(shù)非線性逐層變化。然后利用四元數(shù)的旋轉(zhuǎn)特性實現(xiàn)裙子頂層質(zhì)點的旋轉(zhuǎn),并給出了由服裝頂層質(zhì)點產(chǎn)生振動運動的過程。最后通過定義兩個四元數(shù)分別控制振動運動的幅度和頻率,振動力的作用可以通過彈簧自上向下傳遞,調(diào)節(jié)不同的仿真參數(shù),仿真出裙子在振動力下的動態(tài)效果。本文實現(xiàn)服裝在振動力和風力作用下的動態(tài)效果。首先對布料的動態(tài)仿真進行研究；接著利用參數(shù)方程快速構(gòu)建裙子模型,然后對其添加質(zhì)點-彈簧模型,添加重力、振動力、風力的作用；最后,利用歐拉積分更新質(zhì)點位置、速度等信息,仿真出一系列外力作用下裙子的動態(tài)效果,實現(xiàn)動態(tài)服裝快速逼真的仿真。
[Abstract]:In recent years, virtual reality technology has been widely used in various industries. The virtual human clothing animation can simulate the clothing model to follow the body movement of the virtual character to produce the corresponding movement, deformation and other three-dimensional animation effects. With the continuous development and wide application of 3D technology, 3D virtual clothing dynamic simulation has gradually become a hot and difficult point in the field of virtual reality. In the field of virtual fitting and virtual fashion show, we can feel the strong visual effect brought to us by 3D clothing. The in-depth study of 3D garment not only has broad application prospect and economic value. It can also promote and promote the development and innovation of related disciplines, in order to simulate the dynamic effect of clothing under external force. This paper presents a method to generate vibration motion based on quaternion. Firstly, using the parameter equation of ellipse, the clothing model is constructed layer by layer from top to bottom, and then the mass-spring structure is added to the model. The relative position of the top two layers of the garment remains unchanged, and the elastic coefficient of the spring changes nonlinearly layer by layer. Then, the rotation of the top mass of the skirt is realized by using the rotation characteristic of the quaternion. Finally, by defining two quaternions to control the amplitude and frequency of vibration motion, the effect of vibration force can be transmitted from top to bottom by spring. The dynamic effect of skirt under vibration force is simulated by adjusting different simulation parameters. In this paper, the dynamic effect of clothing under the action of vibration force and wind force is realized. Firstly, the dynamic simulation of cloth is studied. Then the skirt model is constructed quickly by using the parameter equation, and then the mass-spring model is added to it, and the effects of gravity, vibration force and wind force are added. Finally, the dynamic effect of skirt under a series of external forces is simulated by using Euler integral to update the information of particle position and speed.
【學位授予單位】：西南交通大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：TP391.9;TS941.1

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