組合體之電腦輔助教學研究

在工程力學討論到組合體物理性質觀念：一、面積及形心求解。二、面積慣性矩、質量慣性矩、主軸求解。三、組合運動分析。這些工程力學性質觀念，牽扯範圍較廣且計算繁雜，長期觀察學生學習此項單元時容易出錯，實際運用上常出問題，利用電算程式可易解出，程式分為：一、直接模擬：均為線性之圖形。二、分段模擬：圖形為非線性或視為組合體。學習者個人練習組合體相關問題時，利用此電算程式，可解決解題遇到困難時無法立即獲得正確解答的窘境，並可立即從程式解答中獲得圖形展示、面積、形心位置、慣性矩值，遇到原理不了解時亦可利用電子書快速瀏覽，更可在備忘註解問題點，日後溫習可直接點閱重點備忘錄，不會像課本記重點，時間一久忘了重點註解在哪頁，不僅大大提高學習效率，也節省了許多不必要的時間。

關鍵字

慣性矩；輔助教學；組合體

並列摘要

Discuss the physical property idea of the composite bodies in engineering mechanics: 1. The area and the shape center solve. 2. Area inertia, mass, and main axle solution. 3. Combination movement analysis. These engineering mechanics nature ideas involves the scope broader also the computation is numerous and diverse, and observes the student to study time for a long time this unit is easy to make a mistake. In the actual utilization often has the problem. The advantage uses electricity calculated be easy to solve. The electricity calculates the formula divides into: 1. Direct simulation: graph of the linear. 2. Partition simulation: The graph for the non-linearity or regards as the assembly. When study individual practice assembly related question, using this electricity formula, solve the problem solving to encounter time the difficulty, unable to obtain the correct explanation immediately the predicament. And obtain the graph demonstration, area, shape center and inertia immediately from the formula explanation. Meets the principle not to understand when also use the e-book fast browsing. May prepare forgets to explain the question spot, the review might directly select the memorandum in the future. Cannot record key like the textbook, which page has the time one for a long time forgotten the key illustration in. Not only greatly enhances the study efficiency, has saved the nonessential time.