Results 251 to 260 of about 857,752 (305)
Some of the next articles are maybe not open access.
International Journal of Mechanical Sciences, 2019
Abstract This paper proposes a volumetric accuracy enhancement method of rotary axes in five-axis machine tools through constructing equivalent rotary axis (ERA). The influences of translational axes, setup errors of table ball and tool ball are simultaneously considered. A new concept named ERA, originated from the definition of axis of rotation, is
Min Wan, Qun-Bao Xiao
exaly +2 more sources
Abstract This paper proposes a volumetric accuracy enhancement method of rotary axes in five-axis machine tools through constructing equivalent rotary axis (ERA). The influences of translational axes, setup errors of table ball and tool ball are simultaneously considered. A new concept named ERA, originated from the definition of axis of rotation, is
Min Wan, Qun-Bao Xiao
exaly +2 more sources
Double‐axis rotary replication for deep‐etching
Journal of Microscopy, 1984SUMMARYWe have developed a simple new method of rotary shadowing, double‐axis rotary replication, for observing three‐dimensional structures in deep‐etched, rapid‐frozen tissues. The technical details of this method are described and compared with the conventional fixed‐angle rotary shadowing procedure.
Y, Shibata, T, Arima, T, Yamamoto
openaire +2 more sources
Self-Calibration of On-Axis Rotary Encoders
CIRP Annals, 2007This paper presents a new self-calibration method for rotary encoders mounted on precision axes of rotation. By measuring encoder pulse widths in the time domain, the angular distance corresponding to each pulse is automatically derived from the spindle free-response dynamics.
X.-D. Lu, D.L. Trumper
openaire +1 more source
Synchronous motion of translational and rotary axes to evaluate the behavior of rotary axis
2016 International Symposium on Flexible Automation (ISFA), 2016Although the motion error around motion direction changing points of each axis affects the accuracy of machined parts, evaluation and compensation methods for the dynamic behavior around motion direction changes of rotary axis has not been established up to now.
Shogo Hasegawa +3 more
openaire +1 more source
A method to decouple the geometric errors for rotary axis in a five-axis CNC machine
Measurement Science and Technology, 2020Abstract When using a ball-bar to measure rotary axis error, to keep the posture of the bar constant, a linkage motion of two linear axes with the rotary axis is required, which will cause the ball-bar length to contain both rotation axis error and linear axis error. In order to get the accurate rotary axis error,
Ruijun Liang +3 more
openaire +1 more source
Kinematic and dynamic sensitivity analysis of a three-axis rotary table
Proceedings of 2003 IEEE Conference on Control Applications, 2003. CCA 2003., 2004Three-axis rotary table is a flight motion simulator (FMS) used in the hardware in the loop (HWIL) simulation. Geometrical modeling of 3-axis rotary tables is described and then three possible geometrical layouts are driven. Kinematic and dynamic modelings of a 3-axis rotary table are developed in this paper.
Aria Alasty, Hasan Abedi
openaire +2 more sources
Measurement of Static Geometric Error of Rotary Axis of Five-axis Machine Tool Based on Probe
2018 IEEE International Conference on Information and Automation (ICIA), 2018Static geometric error refers to the geometric error that is independent of the motion position. This paper describes a static geometry error measurement scheme for rotary axis based on a touch probe. The research and application of the linear axis error of the five-axis CNC machine tool have become mature.
Rigao Chen, Xiaodong Wang, Jiangang Li
openaire +2 more sources
The LBM Research on Transverse-Axis Rotary Viscous Pump
ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 2010In this study, the flow pattern in the novel viscous pump is analyzed using the lattice Boltzmann method (LBM) to simulate the whole flow field in the pump with three shape cross-sections of cylinders, the circular, rectangular, as well as square. The solid curved wall boundary condition based on interpolation and bounce-back on the wall of the LBM ...
Fan Yang +3 more
openaire +1 more source
Research on Rotation Technique of Single-axis Rotary SINS
2018 37th Chinese Control Conference (CCC), 2018Rotary modulation and control algorithms are the key technologies of the rotating strapdown inertial navigation system. The complex rotation scheme earns limited accuracy, while causing larger size, lower reliability and higher additional cost. This paper analyzed the sources of inertial sensors' errors, compared similarities and differences, and ...
Jun Shen, Yike Cai, Junwei Wu
openaire +1 more source