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박보용,Park, Bo-Yong 한국정밀공학회 1992 한국정밀공학회지 Vol. No.
A method for designing high speed spindle is presented in order to enhance the machining accuracy in consideration of vibration characteristics. Experimetal evaluations of the spindle HS 430 as a prototype are made efficiently with the help of bending vibration modes for nonrotational and rotationalstate comparing with the commercial spindle V430. As a result the spindle of HS 430 shows the superior performance than that of V 430.
미분방정식 m? + kx = f(t)의 역사적 유도배경
박보용(Park, Bo-Yong) 한국소음진동공학회 2011 한국소음진동공학회 논문집 Vol.21 No.4
This paper presents a historical study on the derivation of the differential equation of motion for the single-degree-of-freedom m-k system with the harmonic excitation. It was Euler for the first time in the history of vibration theory who tackled the equation of motion for that system analytically, then gave the solution of the free vibration and described the resonance phenomena of the forced vibration in his famous paper E126 of 1739. As a result of the chronological progress in mechanics like pendulum condition from Galileo to Euler, the author asserts two conjectures that Euler could apply to obtain the equation of motion at that time.
박보용(Bo Yong Park) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this paper, the developments of prime movers, steam and internal combustion engine in the period of Age of Machines, especially between 1750~1900 are studied and summarized. From the point of historical view, the formation of mechanical engineering during this period is also parallel analysed. In accordance with the industrial needs, the new concept of Engineer-Scientist was established as an engineering pedagogy for the process of designing complex machines using mathematical, science-based methods at the engineering schools started in France, which broke with Craftsman-Engineer system through the tradition of Apprenticeship in England and influenced generations of engineers for the innovation into the 20th century.