機電工程學系
Permanent URI for this communityhttp://rportal.lib.ntnu.edu.tw/handle/20.500.12235/84
系所沿革
為迎合產業機電整合人才之需求,本校於民國 91年成立機電科技研究所,招收碩士班學生;隨後並於民國93年設立大學部,系所整合為「機電科技學系」,更於101學年度起招收博士班學生。103學年度本系更名為「機電工程學系」,本系所之發展方向與目標,係配合國家政策、產業需求與技術發展趨勢而制定。本系規劃專業領域包含「精密機械」及「光機電整合」 為兩大核心領域, 使學生不但學有專精,並具跨領域的知識,期能強化學生之應變能力,以適應多元變化的明日社會。
教學目標主要希望教導學生機電工程相關之基本原理與實務應用的專業知能,並訓練學生如何運用工具進行設計、執行、實作與驗證各項實驗,以培養解決機電工程上各種問題所需要的獨立思考與創新能力。
基於建立系統性的機電工程整合教學與研究目標,本系學士班及研究所之教育目標如下:
一、學士班
1.培育具備理論與實作能力之機電工程人才。
2.培育符合產業需求或教育專業之機電工程人才。
3.培育具備人文素養、專業倫理及終身學習能力之機電工程人才。
二、研究所
1.培育具備機電工程整合實務能力之專業工程師或研發人才。
2.培育機電工程相關研究創新與產業應用之專業工程師或研發人才。
3.培育具備人文素養、專業倫理及終身學習能力之專業工程師或研發人才。
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Item Dye-sensitized solar cells application of Al-doped ZnO nanowires grown by low-temperature solution process(2009-12-04) Cheng, C. P.; Chen, G. W.; Ou, S. L.; Pan, J. L.Item Electrochromic properties and Raman spectroscopy analysis of RF sputtered tungsten oxide thin films(2009-12-04) Cheng, C. P.; Lin, S. H.; Hung, F. Y.Item Field Emission Properties of Bilayer ZnO Nanowires/Nanocrystalline Diamond Film Structures(2009-12-04) Huang, B. R.; Cheng, C. P.; Hsu, J. F.; Jou, S.; He, S. A.Item Ultraviolet Emission of Nano-structured Zinc Oxide(2006-09-12) Lai, F. I.; Chen, W. C.; Kuo, S. Y.; Cheng, C. P.Item Optical properties of lead magnesium niobate-lead titanate thin films grown by pulsed laser deposition(2005-02-01) Liu, D. R.; Ou, S. L.; Cheng, P. T.; Cheng, C. P.Item EM-TuP30 Large Nonlinear Optical Properties of Lead Magnesium Niobate-Lead Titanate Thin Films Grown by Pulsed Laser Deposition(2005-10-30) Liu, D. R.; Cheng, P. T.; Ou, S. L.; Chen, J. S.; Cheng, C. P.Item Efficiency Improvement of Organic Light Emitting Diodes with Co-Deposited Hole Blocking Layer(Trans Tech Publications, 2010-04-01) Liu, C. H.; Tesng, C. H.; Cheng, C. P.There are several kinds of methods in improving the efficiency of organic light emitting diodes (OLEDs). In this work, we used a co-deposited hole blocking layer to improve the efficiency of OLEDs. The structure of the component is: ITO/ MTDATA(15 nm) /NPB(40 nm) /BCP(10 nm) /BCP: Alq(15 nm) /LiF(0.7 nm)/ Al(180 nm). We changed the mixing rate of the BCP:Alq layer to be capable of hole blocking and electron transporting, and then improved the efficiency of OLEDs. Finally, we prepared white light OLED with doping Rubrene in NPB. When the concentration of the NPB: Rubrene layer was 2.0 wt.%, the device could emit the white light at 100 mA/cm2, and the luminance was above 2300 cd/m2, and the color coordinate was x = 0.36, y = 0.37.Item Influences of Dye Doping and Hole Blocking Layer Insertion on OLED Performance(Trans Tech Publications, 2010-04-01) Tesng, C. H.; Liu, C. H.; Cheng, C. P.This study presents the influences of dye doping and hole blocking layer insertion on the electroluminescent properties of the blue organic light emitting diode. The luminance of the device was significantly improved by BCzVB doping because of the utilization of effective F顤ster energy transfer and the improvement of carrier injection and trapping; a BCzVB dominant emission was observed. Furthermore, when a BCP layer was inserted between the TBADN:BCzVB and Alq3 layers, a thin BCP layer insertion enhanced the injection of electrons and improved the luminance of the device. In contrast, a thick BCP layer insertion caused a delay in electron transport, resulting in a decrease in current density and a deterioration in luminance.Item Friction stir welding of ductile iron and low carbon steel(Maney Publishing, 2010-11-01) Cheng, C. P.; Lin, H. M.; Lin, J. C.Friction stir welding (FSW) is a low distortion, high quality solid welding. There is no melting during the welding process, which results in improved welding quality. Ductile iron has the advantages of being low cost, of excellent castability, and of being good mechanically. Therefore, it is generally used in many structural engineering parts. In this study, ferritic ductile iron and low carbon steel were used to explore the qualities of dissimilar metal welding under different conditions. The FSW process, changes in the microstructure of the welding area and the mechanical properties of joints were explored. According to the research, we found that when dissimilar metal welding is conducted at 982 rev min-1 with a travelling speed of 72 mm min-1, flawless welding quality can be obtained if the stir rod rotates counterclockwise with carbon steel fixed in the advancing side and with ductile iron in the retreating side. FSW successfully provided defect free welds. However, fine pearlite and martensite structures appear in the stir zone, which result in mechanical property degradation of weldments. The stir zone in the weldments is very hard due to martensitic transformation. After heat treatment, the tensile strength improves, and the fracture site appears in the base metal of the carbon steel. However, the welding nugget is not completely filled when the stir rod directs ferritic ductile iron to the advancing side in the clockwise direction and carbon steel in the retreating side, which results in defects and lower welding quality.Item Effect of heating temperature and magnesium content on the thermal cyclic failure behaviour of ductile irons(Maney Publishing, 2004-02-07) Cheng, C. P.; Lui, T. S.; Chen, L. H.This study elucidates the effect of residual magnesium content and heating temperature on the thermal cyclic failure behaviour of ductile irons by applying repeated heating and cooling cycles. Five irons with different residual magnesium contents ranging from 0.038 to 0.066 wt-% were obtained by controlling the amount of nodulariser additions. The thermal fatigue cracking behaviour was investigated during thermal cycling from 25蚓 to 650, 700, 750, and 800蚓, respectively. Experimental results indicate that the thermal fatigue cracking resistance of ductile iron decreases with increasing residual magnesium content. The maximum heating temperatures of 700蚓 and 750蚓 led to the most severe thermal fatigue cracking in the specimens containing 0.054 wt-% and 0.060 wt-% residual magnesium content. Recrystallisation of ferrite grain occurred when the thermal cycles exceeded a certain number after testing at 800蚓, which deferred the initiation of thermal fatigue cracking.