CAJ | 학술논문

在膝关节前交叉韧带重建仿真系统中,为了进行人体肌腱实时模拟,提出一种基于改进弹簧振子模型的实时肌腱模拟方法,通过定义非线性弹簧,降低线性弹簧振子模型"超弹性"现象的发生概率,从而增强肌腱应力的仿真效果,利用添加临时性约束弹簧的方法进行碰撞处理.同时用隐式欧拉方法求解模型,提高肌腱模拟的整体性和实时性.实验结果表明,该方法符合系统对实时性和真实感的要求.
재슬관절전교차인대중건방진계통중,위료진행인체기건실시모의,제출일충기우개진탄황진자모형적실시기건모의방법,통과정의비선성탄황,강저선성탄황진자모형"초탄성"현상적발생개솔,종이증강기건응력적방진효과,이용첨가림시성약속탄황적방법진행팽당처리.동시용은식구랍방법구해모형,제고기건모의적정체성화실시성.실험결과표명,해방법부합계통대실시성화진실감적요구.
In order to conduct real-time simulation for human tendon in rebuilt system of Anterior Cruciate Ligament(ACL), a real-time tendon simulation method based on improved mass-spring model is proposed. By defining non-linear spring, the probability of "super-elasticity" in linear spring model is cut down, which enhances the simulation effect of tendon force. The approach of adding temporary restriction springs is used to deal with collision, and the implicit backward Euler method is also used to solve the model. The real-time performance and integrity of simulation is promoted. Experimental results show this method meets the system requirement of real-time and realistic sense.