Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Gyu Ha Kim"'
Publikováno v:
Precision Engineering. 66:201-208
This paper represents a novel method to suppress the thermal effects of flexure mechanism-based nanopositioning system by fluid (air or water) flow under certain pressure conditions through the internal fluidic channels of the compliant structure. Th
Publikováno v:
Measurement. 131:61-68
The dimensional measurement technique utilizing curved-edge diffraction is applied for the dynamic system identification of precision spindle system. Both static and dynamic behavior including stiffness, damping ratio, and parasitic motion of a preci
Publikováno v:
Volume 1: Additive Manufacturing; Manufacturing Equipment and Systems; Bio and Sustainable Manufacturing.
This paper presents dynamic characteristics of pressure-fed flexure mechanisms with the additively manufactured internal fluidic channels. Additive manufacturing (AM) technology makes use of the mechanical design flexibility that can effectively cont
Publikováno v:
International Journal of Machine Tools and Manufacture. 100:105-115
Fluid coolant has been widely used for cooling, lubrication, and the removal of cutting chips in the grinding process; however, it can generate grinding marks due to the hydrodynamic force especially in case of a lack of the spindle stiffness. This l
Publikováno v:
International Journal of Heat and Mass Transfer. 144:118622
This paper presents a novel surface heat flux estimation method for the 3D finite domain experiencing dynamic convection and surface heat flux. The thermal mode parameter is adopted to produce a mathematical relation between the surface heat flux his
Publikováno v:
International Journal of Precision Engineering and Manufacturing. 15:1935-1946
This paper presents a motion error estimation method for a slide table using a transfer function method, which calculates motion errors due to the rail straightness of a slide guide stage. The proposed transfer function method uses a new reaction for
Publikováno v:
International Journal of Precision Engineering and Manufacturing. 14:2171-2178
The wettability, friction, adhesion, and optical characteristics of a surface are affected by its micro-topography. In turn, the characteristics of a surface micro-topography can be determined by controlling the trajectory of a cutting tool mounted o
Publikováno v:
Journal of the Korean Society for Precision Engineering. 30:754-761
Thermal displacement is an important issue in machine tool systems. During the last several decades, thermal error compensation technology has significantly reduced thermal distortion error; this success has been attributed to the development of a pr
Publikováno v:
International Journal of Precision Engineering and Manufacturing. 13:1509-1515
An uncertainty analysis of grating interferometry in six degree-of-freedom (DOF) motion error measurements in a linear stage is presented. Six-DOF refers to the translational and rotational motion of a rigid body in a three-dimensional space. The opt
Publikováno v:
Journal of the Korean Society of Precision Engineering. 29:906-912
This paper presents the new method for a six-degree-of-freedom (DOF) motion measurement and those dynamic characterizations in an ultraprecision linear stage using angle sensor-implemented grating interferometry. It consists of a diffractive optical