Results 1 to 10 of about 101 (93)
Multi-Field Coupling Dynamics Modeling of Aerostatic Spindle [PDF]
Micromachines, 2021 The aerostatic spindle in the ultra-precision machine tool shows the complex multi-field coupling dynamics behavior under working condition. The numerical investigation helps to better understand the dynamic characteristics of the aerostatic spindle and ...
Guoda Chen, Chen Guoda
exaly +4 more sources
Research on Vibration Amplitude of Ultra-Precision Aerostatic Motorized Spindle under the Combined Action of Rotor Unbalance and Hydrodynamic Effect [PDF]
Sensors, 2023 In the working process of the gas bearings, the unbalanced force of the rotor will increase nonlinearly with the increase in the rotating speed, resulting in an increase in the rotor’s vibration amplitude.
Wenbo Wang +3 more
doaj +2 more sources
An Optimization Method for the Main Influence Factors on the Performance of Aerostatic Spindle
Shock and Vibration, 2019 This paper proposes a novel optimization method to improve the performance of aerostatic spindle. The optimization process is based on the main factors affecting the load and stiffness of aerostatic spindle, which are determined by cross-correlation ...
Dongju Chen +3 more
doaj +2 more sources
Development of a High-Speed Precision Ultrasonic-Assisted Spindle for Ultra-Precision Optical Mold Machining [PDF]
SensorsUltrasonic vibration-assisted grinding is a critical method for machining ultra-hard optical molds. However, current ultrasonic-assisted grinding spindles, as essential foundational equipment, face limitations in maintaining ultra-high rotational speed ...
Dingwen Wang, Qiu Hong, Shaohui Yin
doaj +2 more sources
Investigation on the Micro Cutting Mechanism and Surface Topography Generation in Ultraprecision Diamond Turning [PDF]
Micromachines, 2022 Revealing forming mechanism of workpiece surface topography plays an important role in improving ultraprecision turning. In this paper, the forming mechanism of the turning workpiece surface topography is analyzed and verified by the theoretical ...
Quanhui Wu +4 more
doaj +2 more sources
Theoretical Model for a Pneumatic Nozzle–Cylindrical Flapper System [PDF]
MicromachinesTo increase semiconductor production yield and meet the growing global demand, air bearings offering higher processing speeds and reduced friction losses have been proposed as an ideal solution.
Peimin Xu +2 more
doaj +2 more sources
3D Simulation Study for a Pneumatic Nozzle–Cylindrical Flapper System [PDF]
SensorsWith the increasing demand for higher efficiency in semiconductor machining, air spindles with compensation systems have attracted growing attention. The pneumatic nozzle–cylindrical flapper is a promising sensing approach due to its high precision and ...
Peimin Xu +2 more
doaj +2 more sources
Applied Sciences, 2021 The fluid–structure interaction (FSI) effect has a significant impact on the static and dynamic performance of aerostatic spindles, which should be fully considered when developing a new product. To enhance the overall performance of aerostatic spindles,
Qiang Gao +4 more
doaj +1 more source
Experimental and Numerical Dynamic Identification of an Aerostatic Electro-Spindle
Applied Sciences, 2021 This paper proposes a method to experimentally identify the main modal parameters, i.e., natural frequencies and damping ratios, of an aerostatic spindle for printed board circuit drilling. A variety of methods is applied to the impulse-response function
Federico Colombo +4 more
doaj +1 more source
International Journal of Mechanical System Dynamics, Volume 2, Issue 3, Page 290-307, September 2022., 2022 Abstract The dynamics of an ultra‐precision machine tool determines the precision of the machined surface. This study aims to propose an effective method to model and analyze the dynamics of an ultra‐precision fly‐cutting machine tool. First, the dynamic model of the machine tool considering the deformations of the cutter head and the lathe head is ...
Hanjing Lu +6 more
wiley +1 more source