摘要

鋼琴被稱為「樂器之王」，幾乎所有偉大的音樂家，都為鋼琴寫下了悠揚的樂章，而他們自己本身也是鋼琴的演奏家。在所有的音樂會中，演出頻率最高的樂器就是鋼琴。
1709年義大利人Cristofori所製成的擊弦樂器，是世界上公認的第一台鋼琴，在人類的音樂史上是一大發明。現代鋼琴的基本構造在19世紀時就已經大致確定了，近年來仍有許許多多的專利為改良鋼琴而努力，確實也有了很好的效果，而這些專利大多是在原有的基礎上增加新的輔助元件以改良性能，鋼琴的基本構造，近一百年來並沒有重大的改變。本研究採取構造合成的方法來設計新的鋼琴，並且提出用「連桿控制琴槌」的新設計觀念，希望能夠提升鋼琴的性能。

Abstract
A piano is called “the king of instruments”. Almost every great musician writes good compositions for piano, and they are also good pianoists. Piano almost appears in every concert.

Bartolomeo Cristofori made the first instrument that we recognize as a piano today in 1709.It is an important invention in music history. The basic structure of a modern piano was approximately decided in 19 century. Many patents were designed to improve the performance of piano in these years, but they didn’t change the basic structure of piano. The research adopts the method of structure synthesis to design new piano and brings up a new idea “linkage controls a hammer” to improve the performance of a piano.

目 錄
頁次
摘要............................................Ⅰ
目錄............................................Ⅲ
圖目錄..........................................Ⅵ
第一章 緒論..................................1
1-1 鋼琴的基本結構.............................2
1-1-1 打弦機構…………………………………….2
1-1-2 踏板……….…………...………………….6
1-1-3 鐵骨架……………..……………………….6
1-1-4 音響板.………………………………………7
1-1-5 琴弦.…………………………………………7
1-2 鋼琴的材料……………………………………7
1-3 德國傳統鋼琴的製造標準……………………8
1-4 研究文獻回顧…………………………………9
1-5 擊弦運動介紹 .……………………………15
1-5-1直立式鋼琴的擊弦過程………………………….15
1-5-2平台式鋼琴的擊弦過程………………………….17
1-6平台式鋼琴與直立式鋼琴比較.…………… 19
1-7打弦機構的效率.…………………………….20
1-8研究方向和目的.…………………………….20
第二章 鋼琴的歷史…...............……..…….22
2-1 鋼琴的發展史……../..........…….…22
2-2 現代鋼琴的發展趨勢………………………30
2-3 現代電子琴的發展.……………………….33
第三章 打弦機構的分析…………......…………..36
3-1 打弦機構的接頭.....………………………36
3-1-1 鋼琴的齒輪對...…………………………36
3-1-2 接觸接頭………………………………….37
打弦機構力的分析......…………………………….38
3-2-1 直立式打弦機構力的分析.…………………38
3-2-2 平台式打弦機構力的分析………………….40
3-2 打弦機構速度的分析………………….……42
3-3-1 用瞬心求速度…………….……………….42
3-3-2 用向量迴路法求速度……………………..42
第四章 鋼琴打弦機構之構造合成…………….....45
4-1 構想設計程序...………................48
4-2 鋼琴的運動鏈……………………………….46
4-3 基本特性與限制.……………………………47
4-4 可用運動鏈目錄.……………………………49
4-5 新打弦機構之合成.…………………………50
4-6 新鋼琴打弦機構之分析…………………….55
4-7 將反覆桿應用於七桿的打弦機構.………..61
第五章 新鋼琴打弦機構之設計........………….64
5-1 新鋼琴打弦機構之設計構想…....……..64
5-2 新鋼琴打弦機構之設計要點....…………65
5-3 新鋼琴打弦機構之分析……..........…66
5-4 六連桿在新打弦機構中的應用…….……………70
第六章 結論與建議………………….………………75
參考文獻…....…………………................…77
附錄………………………………………………….….81

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