Title page for etd-0724112-125030

URN	etd-0724112-125030	Statistics	This thesis had been viewed 570 times. Download 0 times.
Author	Ruei-Hong Syu
Author's Email Address	getyou159@yahoo.com.tw
Department	Institute Of Mechanical Engineering
Year	2011	Semester	2
Degree	Master	Type of Document	Master's Thesis
Language	zh-TW.Big5 Chinese	Page Count	87
Title	Finite Element Model Updating and Optimum Design of Circular Diamond Saw Blades
Keyword	finite element model updating parametric model modal testing finite element analysis saw blades optimum design optimum design saw blades finite element analysis modal testing parametric model finite element model updating
Abstract	This thesis presents a two-phased optimum design procedure and conducts structural optimum design for circular diamond saw blades. To assure the structural integrity of the saw blade during the sawing process, the optimized saw blades are also examined for their stress distribution while under a cutting force loading. In Phase one, modal testing and finite element analysis are performed to obtain two sets of natural frequencies and mode shapes for the saw blade, and a finite element parametric model of the saw blade is also created to perform finite element model updating by minimizing the frequency differences between the finite element analysis and modal testing results with the thicknesses of the saw tip and blade body as the updating parameters. In Phase two, based on the updated geometrical parameters obtained in Phase one, shape optimization of annular slots grooved on the circular blade is executed to maximize the frequency separation between the finite element analysis results and the saw’s operational speed, in an attempt to reduce the possibility of structural resonance. In this research, eight different designs of annular slots on the blade are investigated. Finally, stress analysis of the saw blade is studied when the blade is in use. During the cutting process, the saw blade is loaded by radial forces and we have to ensure that the slots will not significantly reduce the strength of the blade and cause the blade to break under these forces. In addition, advantages and disadvantages of each annular slot are discussed and the best design of the annular slots is presented.
Advisor Committee	Kun-Nan Chen - advisor Jenn-Tian Jang - co-chair Wei-Hsin Gau - co-chair
Files	etd-0724112-125030.pdf indicate not accessible
Date of Defense	2012-07-24	Date of Submission	2012-07-24

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