| 邢坤， 程武山.多功能智能轮椅背部支起机构优化设计[J].轻工机械,2019,37(5):89-93 |
| 多功能智能轮椅背部支起机构优化设计 |
| Optimum Design of Multi Functional Intelligent Wheelchair Backup Mechanism |
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| DOI：10.3969/j.issn.1005 2895.2019.05.017 |
| 中文关键词: 多功能智能轮椅 背部支起机构 电动推杆 动力学仿真 有限元分析 SOLIDWORKS软件 |
| 英文关键词:multifunctional intelligent wheelchair back support mechanism electric push rod dynamic simulation FEA(finite element analysis) SolidWorks |
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| 中文摘要: |
| 为了实现智能轮椅多形态背部支起机构稳定和安全运行，课题组对各种形式角度调节机构进行研究、分析，提出轮椅的背部支起机构使用电动推杆来进行角度调节。搭建了背部支起机构模型，在分析了背部支起机构几何关系和力学模型的基础上，使用MATLAB求解电动推杆固定位置的最优解；借助SolidWorks Motion进行动力学仿真，确定电动推杆的最佳行程。借助SolidWorks Simulation进行有限元仿真分析，验证背部支起机构的设计方案。仿真结果表明：电动推杆的固定位置和行程选择合理，降低了承载梁的载荷，提高了背部支起机构安全性和平稳性。 |
| 英文摘要: |
| In order to realize stable and safe operation of intelligent wheelchair multi mode back support mechanism, various angle adjustment mechanisms were studied and analyzed. The back support mechanism of wheelchair using electric push rod for angle adjustment was proposed. A model of the back support mechanism was built on the basis of the analysis of the geometric relationship and mechanical model of the back support mechanism, the optimal solution of the fixed position of the electric actuator was solved by using MATLAB. Dynamic simulation was carried out to determine the optimal stroke of the electric actuator with the help of SolidWorks Motion, and the feasibility of the back support mechanism verified through finite element analysis were performed by SolidWorks Simulation. The simulation results show that the fixed position and stroke of linear actuator are reasonable , which reduces the load of the load beam and improves the safety of the back support mechanism and stabilizes the back support process. |
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