下肢康復訓練系統(tǒng)機械結構設計與控制方法研究
發(fā)布時間:2018-04-21 06:41
本文選題:下肢康復訓練 + 優(yōu)化設計; 參考:《吉林大學》2015年碩士論文
【摘要】:在經(jīng)濟飛速發(fā)展、人民生活水平提高和老齡化日益嚴重的背景下,人們對健康問題的重視程度越來越大。尤其是老齡化人群因為偏癱、摔倒以及某些不良的生活習慣等原因引起的下肢運動功能障礙的問題,已經(jīng)成為構建和諧社會必須要解決的問題之一。因此,研究一種智能化的下肢康復訓練系統(tǒng),并開發(fā)一套與之對應的康復訓練控制方法已經(jīng)引起了社會的廣泛關注。 基于上述研究背景,本論文研究的下肢康復訓練系統(tǒng)的機械結構具有加工方便、安裝簡單、成本低的優(yōu)點。并且本論文研究的控制方法不僅可以使患者能夠按照健康人體站起姿勢進行站起訓練,使其避免由于被動牽拉式的受迫運動造成二次傷害,而且可以使患者能夠在獨立自主的情況下在不同的康復階段完成相對應訓練模式的康復訓練,從而使患者收到最佳的訓練效果。這對于該下肢康復訓練系統(tǒng)的社會化推廣及家庭化應用具有重要的實際意義。 本論文首先通過對人體運動學和動力學理論以及健康人體從坐姿到站立過程的重心軌跡變化的研究與分析,給出人體起立過程的重心軌跡變化曲線,并根據(jù)該研究設計下肢康復訓練系統(tǒng)的機械結構,通過CATIA和Hypermesh相結合對其進行建模和力學仿真,并對機械結構進行改進設計與優(yōu)化計算,使其不但滿足期望的力學承重要求,而且達到用料少、質(zhì)量輕,方便加工生產(chǎn)、拆裝、運輸以及家庭化使用的目的。同時考慮到患者的實際情況,在不同的康復階段需要進行針對性的訓練,本論文提出了一套下肢康復訓練系統(tǒng)的控制方法,,即軌跡控制方法和阻尼控制方法。軌跡控制方法可以使訓練者根據(jù)設定的程序按照符合自身條件的訓練軌跡進行站起康復訓練,以達到最佳的訓練效果。阻尼控制方法則針對已恢復部分下肢肌肉力的患者,在訓練的過程中著重訓練患者某一動作時相對薄弱的肌肉力,從而使訓練更有效率。通過對受試者在訓練過程中的仿真分析,驗證該系統(tǒng)的可行性和安全性。最后對本論文所做研究進行總結,討論工作中的不足,并交待接下來要繼續(xù)進行的工作。
[Abstract]:With the rapid development of economy, the improvement of people's living standard and the increasingly serious aging, people pay more and more attention to health problems. Especially the problem of lower extremity motor dysfunction caused by hemiplegia, falling down and some bad living habits has become one of the problems that must be solved to build a harmonious society. Therefore, the study of an intelligent lower limb rehabilitation training system and the development of a corresponding rehabilitation training control method have attracted widespread attention. Based on the above research background, the mechanical structure of the lower limb rehabilitation training system studied in this paper has the advantages of easy processing, simple installation and low cost. And the control method studied in this paper can not only enable patients to stand up training according to the standing posture of healthy human body, but also avoid secondary injury caused by passive pull forced exercise. Moreover, the patients can complete the corresponding rehabilitation training in different rehabilitation stages under the condition of independence and autonomy, so that the patients can receive the best training effect. This is of great practical significance for the socialization promotion and family application of the lower limb rehabilitation training system. In this paper, the kinematics and dynamics of human body and the change of the trajectory of the center of gravity from sitting position to standing process are studied and analyzed, and the curve of the trajectory change of the center of gravity in the process of human body standing up is given in this paper. According to this research, the mechanical structure of the lower limb rehabilitation training system is designed, and the mechanical structure is modeled and simulated by CATIA and Hypermesh, and the mechanical structure is improved and optimized to meet the requirements of the desired mechanical load bearing. And achieve the purpose of less material, light weight, convenient processing, disassembly, transportation and family use. At the same time, considering the actual situation of patients, different rehabilitation stages need to be targeted training, this paper proposed a set of lower limb rehabilitation training system control methods, namely, trajectory control method and damping control method. The trajectory control method can make the trainer according to the set procedure according to their own training track to stand up rehabilitation training, in order to achieve the best training effect. The damping control method is aimed at the patients who have recovered part of the lower limb muscle strength. In the course of training, the method focuses on training the relative weak muscle strength of a certain movement of the patient, thus making the training more efficient. The feasibility and security of the system are verified by the simulation analysis of the subjects during the training process. Finally, this paper summarizes the research, discusses the shortcomings of the work, and describes the work to be continued.
【學位授予單位】:吉林大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:TP273.5;R49
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