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研究生:黃市
研究生(外文):Shyh Hwang
論文名稱:以模糊關係為基礎之模糊系統鑑定
論文名稱(外文):An Identification Algorithm in Fuzzy Relation Systems
指導教授:趙俊傑趙俊傑引用關係
指導教授(外文):Jung-Jae Chao
學位類別:碩士
校院名稱:國立海洋大學
系所名稱:電子工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:1994
畢業學年度:82
語文別:中文
論文頁數:69
中文關鍵詞:模糊理論系統鑑定模糊模型
外文關鍵詞:fuzzy theoryfuzzy modelsystem identification
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在工程上,常需對系統進行模擬或控制,以求獲得應有的輸。於船舶操縱模
擬對,更需二者俱備。如此繁複的系統,其勢必難以跟隨系統的各項變化進
行,而必需就系統中的種種因果關係及影響因素建立模型,依照模型作模擬
與控制。但在考慮某些複雜系統的動態時,常常不可避免的需要用語言說
明。而所謂的語言變數亦不可避免的具有模糊性。於是,隨之不可避免的
是模型模糊化。根據貝德里茲(Pedrycz)的參考模糊集合,本文由密茲摩
脫(Mizumoto)所提的▲─組合的構想,延伸出─組合法(即─組合),
並且以─組合法應用到曼達尼(Mamdani)的模糊含意()來描述系統的
運算律,本文所提出的模糊模型,依數據實驗顯示,其績效評估比查德
(Zadeh)的max-min組合運算規則好。此與比斯古諾夫(Piskunov)所指出在
使用▲─組合和模糊含意下,所得的結果要比其它含意及max-min組合為
佳相吻合。
In engineering applications, it is often necessary to perform
ulation or control on systems in order to obtain the desired
output. For processes such as ship-handing simulation, both
simulation and cintrol are required for the system to operate.
In a complex system, it is difficult to proceed in accordance
with all the system variations. A model based on the action
-reaction relations of the system must be established, and the
simulation and the control are oerformed on the model. But in
considering the dynamics of some complex systems,linguistic dec
riptions are always unavoidable. Yet the so called linguistic
variables are unavoidably fuzzy. Therefore, it follows
unavoidably the fuzzification of the model. Based on the
reference fuzzy sets suggested by Pedrycz, this paper extended
Mizumoto''s▲─composition to a ─composition (i.e., ─
composition),and roposed an algorithm using Mandani''s fuzzy
implication () in the @─composition to describle the system
operation. According to computer imulation results, the
identified fuzzy model provided better results thanZadeh''s max-
min algoprithm, agreed with Piskunov''s statement that the
results of 間X composition with the fuzzy implication 
performed better than the max-min omposition with other
implications. to apply Computer Aided Drawing to an Integration
Shaft key Plan Design. The tools used in designing the program
of the system are AutoCAD''s program language,that is AutoLISP,
and parameter concepts. Also ,the system built on the basis of
AutoCAD employs a data structure to integrate Strength cal-
culation program ,Torsional vibration calculation program,
Alignment program,SAG and GAP program ,etc. The integrated
system will be able to automatically calculate、analysis、 and
draw a shaft key arrangement key plan;therefore,a pers- on
without much experience in shaft design is also capable of this
job. The purpose of developing this system is to in- crease
design efficency and to reduce working hours.
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