Results 81 to 90 of about 397,942 (159)

Research on the nonlinear dynamic characteristics of opposed high-speed gas bearing systems

Journal of Low Frequency Noise, Vibration and Active Control, 2020
In recent years, the opposed high-speed gas bearing system has been gradually valued and used in the field of precision machinery, especially for precision instruments and mechanisms requiring high speed, high precision, and high rigidity.
Cheng-Chi Wang, Rong-Mao Lee, Chih-Jer Lin, Chih-Yung Huang, Tsui-Er Lee   +4 more
doaj   +1 more source

Analysis and test of pan-knife plantain stalk green fodder shredding device

Siliao yanjiu, 2023
The cutting uniformity of the plantain stalk green fodder shredding device was studied experimentally, which provided the necessary engineering and technical parameters for optimizing plantain stalk green fodder cutting device.
LIU Cong, ZHU Yun, SUI Yi, YANG Hui-li
doaj  

An Energy-Efficient Fault Diagnosis Method for Subsea Main Shaft Bearings

Journal of Marine Science and Engineering
Main shaft bearings are among the critical rotating components of subsea drilling rigs, and their health status directly affects the efficiency and reliability of the drilling system. However, in the high-pressure liquid environment of the deep sea, with
Jiawen Hu, Jin-qiu Hou, Tenglong Yang, Yixi Zhang, Zhenghua Chen   +4 more
semanticscholar   +1 more source

DETERMINATION OF DISPLACEMENTS IN SPINDLE SHAFTS DURING THE STIFFNESS CALCULATION OF SUPPORTS USING THE MODIFIED JONES–HARRIS MODEL

Bulletin of the National technical university "Kharkiv Polytechnic Institute" Series: Techniques in a machine industry
The paper proposes a model for determining movements in multi-support spindle shafts on nonlinear elastic supports. Using the method of initial parameters in matrix form, the solution of the problem was obtained in the form of a system of equations, in ...
V. Khavin, Evgen Khavin, B. Kyrkach, O. Kyrkach   +3 more
semanticscholar   +1 more source

Research on Wind Turbine Main Shaft Bearing Fault Diagnosis Method Based on Unity 3D and Transfer Learning

Applied Sciences
In the field of wind turbine spindle bearing fault diagnosis, real-time monitoring of its operation is challenging. The state monitoring visualization is limited, fault data and sample labels are scarce, and fault data distribution varies under different
Shuai Wang, Wenlei Sun, Han Liu, Shenghui Bao, Yunhao Wang, Xin Zhao   +5 more
semanticscholar   +1 more source

Pengaturan Kecepatan Spindle Mesin Bubut Retrofit Menggunakan VSD (Variable Speed Drive)

Jurnal Engine: Energi, Manufaktur, dan Material
Retrofitted milling machines are usually not equipped with a gear box to control spindle rotation, so they will experience difficulties if varied spindle shaft rotation is desired. The commonly used way to adjust the rotation of the spindle shaft so that
Andhi Akhmad Ismail, I. A. Hendaryanto
semanticscholar   +1 more source

Study on the Influence of Mechanical Spindle Axial Movement based on ADAMS Simulation Analysis

Jixie chuandong, 2017
Based on a gear tooth fracture case,which is caused by diesel engine crankshaft axial movement. Aiming at the situation that it’s difficult to simulate this fault by experiment,the displacement and movement type can’ t be control.
Jia Yang, Wu Yalong, Wang Zhongmin, Mao Zhiwei, Zhang Jinjie   +4 more
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STATIC ANALYSIS OF SPINDLE SHAFTS ON NONLINEAR ELASTIC SUPPORTS OF INTERRELATED STIFFNESSES

Bulletin of the National technical university "Kharkiv Polytechnic Institute" Series: Techniques in a machine industry
The spindle assembly of a metal cutting machine determines the accuracy and productivity of metalworking. The stiffness of the spindle assembly is estimated by the elastic movements of the spindle shaft under the influence of the working load.
Valerij Khavin, Evgen Khavin, B. Kyrkach
semanticscholar   +1 more source

Effect of Acoustic Emission Sensor Location on the Detection of Grinding Wheel Deterioration in Cylindrical Grinding

Lubricants
The acoustic emission (AE) technique is an effective method for monitoring grinding wheels, and numerous studies have been published on applying an AE to monitor grinding wheels.
Tomohiko Kon, Hiroki Mano, Hideki Iwai, Yoshiaki Ando, Atsushi Korenaga, Tsuguyori Ohana, Kiwamu Ashida, Yoshio Wakazono   +7 more
doaj   +1 more source

Analysis of thermal characteristics of machine tool spindle based on lion swarm optimization algorithm

Jixie qiangdu
Heat is very important to the rotation accuracy of the spindle, and the accurate calculation of the convection heat transfer coefficient is the premise of obtaining accurate results from the finite element steady-state thermal analysis.
ZHANG ZhuangZhuang, WANG HongJun, WANG ZengXin   +2 more
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