臺灣博碩士論文加值系統

本文利用參數化方法進行設計與分析，提出一種汽車座椅機構設計，具有旋轉、升降、分離與結合之功能，可協助行動不便人士進出汽車。該機構之兩用椅可固定於車內做為汽車座椅，亦可與機構分離後於車外發揮輪椅功能。當分離的兩用椅回到車內時，輪椅支架機構可將輪椅支架及前後四輪向上收起，不僅減少佔據車內空間，亦能通過更小的車輛出入口。另外，本文發展一套整合型參數化程式，可以建立座椅模型、進行運動軌跡分析，並根據運動軌跡分析之結果進行運動過程之靜態力分析，掌握運動過程各零件負荷情形。透過此系統，除可瞭解設計之表現，亦可用於設計變更時之評估，加速設計變更流程的進行，使本文之汽車座椅機構能更方便用於各種不同車種。

This thesis proposes a new seat mechanism design to assist disabled people getting on and off welfare vehicles. The seat mechanism, designed by means of parametric design and analysis, has capabilities of rotating, lifting, and separating/joining. The two-way-seat can be fastened in the car as a vehicle seat, or separates from the mechanism as a wheelchair. The linkages of four wheels of the two-way-seat can be moved to the storage position such that space occupation inside the vehicle can be reduced. In addition, an integrated parametrical program is developed for establishing the seat model, analyzing the motion trajectory, and finding the service loads under any motion position. With the developed program, performances of the seat mechanism can be evaluated, and the redesign procedure can be accelerated such that the seat mechanism can be fit to different vehicle more easily.

誌謝 i
中文摘要 ii
英文摘要 iii
目錄 iv
圖目錄 vi
表目錄 ix
符號表 x

第一章 緒論 1
1.1 簡介 1
1.2 研究動機 2
1.3 專利與文獻回顧 2
1.3.1 專利回顧 2
1.3.2 福祉車輛座椅相關文獻回顧 14
1.3.3 參數化設計與電腦輔助設計相關文獻回顧 21
1.4 研究目標 25
1.5 論文大綱 26

第二章 參數化設計相關理論與旋轉機構設計原理 28
2.1 參數技術 28
2.2 參數化設計 28
2.3 機構動作與行為模擬 29
2.3.1 基本物件型態 30
2.3.2 限制引擎 31
2.3.3 動畫方式呈現機構 33
2.4 旋轉機構設計原理 33

第三章 新型座椅機構之參數化設計 37
3.1 基本規格與機構安裝環境 37
3.2 參數化設計與模型建構 38
3.3 旋轉機構之設計概念 43
3.4 升降機構之設計概念 44
3.5 分離與結合機構之設計概念 47
3.6 輪椅支架之設計概念 48

第四章 新型座椅機構之分析與整合型系統 51
4.1 機構運動軌跡分析程式 51
4.1.1 應用範圍與分析流程 51
4.1.2 軌跡分析程式結構 53
4.1.3 軌跡分析程式基本應用範例 55
4.1.4 軌跡分析程式延伸應用範例 61
4.2 汽車座椅機構之運動軌跡分析 65
4.3 設計變更準則 70
4.3.1 旋轉機構參數與空間限制關係 70
4.3.2 升降機構參數與空間限制關係 73
4.3.3 設計變更準則之建立 74
4.4座椅機構之負荷分析 75
4.4.1 升降機構最大伸出狀態下之負荷評估 75
4.4.2 升降機構動作過程任意位置之靜態力分析 78
4.4.3 升降機構所承受之最大負荷與安全性評估 80
4.4.4 輪椅支架之負荷與安全性評估 81

第五章 結論與建議 83
5.1 結論 83
5.2 討論與建議 84

參考文獻 85

附錄A 座椅機構之負荷分析 89
A.1 升降機構最大伸出狀態 89
A.2 升降機構之最大應力 94
A.3 輪椅支架位於支撐位置 99
附錄B 福祉車輛座椅機構程式 105

作者簡歷 106

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