人體多體動力學之分析與研究

The Human Multi-Body Dynamic Analysis and Research

賴冠霖(Guan-Lin Lai)

指導教授 ： 黃運琳

共同指導教授 ： 黃社振(Shen-Jenn Hwang)

國立虎尾科技大學/工程學院/機械設計工程研究所/碩士(2014年)

摘要

本論文藉由觀察正常人走路的動作分析，用來評估一般人之運動軌跡其身體各關節之運動與受力情況。然而單純進行視覺上的觀察，欠缺科學化之量化數據，因此利用運動分析儀器擷取人體多體系統運動資料，將得到的資料輸入電腦輔助軟體，模擬人類多體系統各種的運動軌跡。

現代人面臨著各種的壓力，尤其是某些需要長時間維持同一姿勢之特定工作，久而久之，容易導致不良習慣的產生。本論文則從工程的角度來分析人體多體系統運動時各關節的作用力，證明良好的運動姿勢能夠減輕人體多體系統各部位的負擔，避免長期不當施力所造成的傷害。分別以一種動作：走路的動作分析，用來評估一般人之運動軌跡其身體各關節之運動與受力情況。

最後本論文則利用有限元素分析ANSYS產生中性檔，同樣建立人體模組然後代入多體動力學軟體-ADAMS與電腦輔助工程分析軟體-LifeMod將剛體置換成彈性體來分析其關節之力與力矩並觀察其差異，探討控制的運動路徑和運動方式。本論文研究成果未來將可以提供給生物力學與復健治療領域，成為可靠而有效的參考指標。

關鍵字

走路的動作分析 ； 剛體 ； 彈性體 ； 人體多體動力學 ； 生物力學。

並列摘要

In this investigation, the normal walking gait analysis is observed in order to verify the results of the experiment. A motion capture system is utilized to collect data of the human body multi-body system movements. It is used in multi-body models to calculate displacements and the movements, reaction forces/torques of joints. From the results, the bio-mechanic model of human motion system can be simulated and calculated for reaction forces and torques in this research.
Improper postures are able to cause minor or major injuries to the human multi-body system. From the viewpoint of engineering, this study analyses the displacements, forces and torques of joints to verify that the well movement can relax the burden of every position of the human multi-body system.
Finally, a neutral file is used by performing ANSYS finite element analysis in this thesis. The same body building modules with using multi-body dynamic analysis software-ADAMS and computer-aided engineering analysis software-LifeMod will be replaced by a flexible-rigid body model to analyze the corresponding joint forces and torques. The moving trajectory differences can be monitored and explored by the way of motion path control. The results of this research will be able to use as a reliable and efficient data and index for the areas of biomechanics and rehabilitation in the future.

並列關鍵字

Walking gait analysis ； Rigid body ； Flexible body ； Human multi-body dynamics ； Biomechanics.

參考文獻

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