Results 21 to 30 of about 397,942 (159)

A CFRP/steel hybrid rotating shaft for a high-speed motorized spindle

Journal of Manufacturing Processes
Sung-Hoon Ahn
exaly   +2 more sources

Synovial sarcoma: A case report of first presentation at penoscrotal junction [PDF]

Urology Case Reports
Synovial sarcoma is a rare malignant tumour that arises from mesenchymal origin. This case is about synovial sarcoma in unusual place, the scrotum and penile shaft. A 36-year-old man presented with a tender penoscrotal mass for 5 years.
Abumelha S, Alkhayal A, Alrabeeah K, Alrashed M, Almasari R, Aloudah N   +5 more
doaj   +2 more sources

Effects of Bearing Locations on the Characteristics of a Spindle System Supported by Tapered Roller Bearings [PDF]

한국정밀공학회지, 2020
This paper presents the effects of bearing locations on the mechanical characteristics of a multi-stepped spindle system related to bearing fatigue life, natural frequency, and static stiffness. The multi-stepped spindle is supported by a pair of tapered
Van-Canh Tong, Jooho Hwang, Seong-Wook Hong   +2 more
doaj   +1 more source

Multi-Field Coupling Dynamics Modeling of Aerostatic Spindle

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, Yijie Chen
doaj   +1 more source

Method of Selecting the Operation Parameters of Electric Spindle with Aerostatic Supports for Separation of Semiconductor Plates to Crystals. Parts 2–3

Механика машин, механизмов и материалов, 2021
The article presents the results of studies of the shaft oscillation processes of a precision horizontal highspeed electric spindle with aerostatic radial and axial supports, used at Planar OJSC in equipment for separation of semiconductor plates into ...
Alexander E. Kovensky, Vladimir L. Basiniuk, Ryta E. Volkotrub   +2 more
doaj   +1 more source

Optimization of two support spindle shaft on nonlinear elastic supports by rigidity characteristics

Bulletin of the National Technical University «KhPI» Series Dynamics and Strength of Machines, 2021
One of the main structural elements of metalworking machines is the spindle assembly (spindle), which is used to hold cutting tools or workpieces. The rigidity of the spindle assembly plays a decisive role in ensuring the accuracy and efficiency of the ...
Sergij Pogorilov, Valerij Khavin, Inna Petrovna Khavina   +2 more
semanticscholar   +1 more source

Dynamic analysis of grinding electric spindle bearing-rotor system under eccentric action

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2023
To study the influence of eccentricity on the dynamic characteristics of grinding electric spindle, firstly, the nonlinear oil film force (NOFF) expression of sliding bearing is established based on the boundary condition of adhesion pressure.
Lianchao SHENG, Qi SUN, Guo YE, Wei LI
doaj   +1 more source

Crowning Method on Bearing Supporting Large Wind Turbine Spindle Considering the Flexibility of Structure of Shaft System

Machines, 2022
To meet the precision design of bearings on large wind turbine spindles, a crowning method of bearing on wind turbine spindles considering the flexibility of the support structure is proposed. Firstly, a finite element (FE) model of the shaft system with
Xiangyang Liu, R. Niu, Bin Wang, Shuai Zhang, Yongcun Cui, Z. Zhang   +5 more
semanticscholar   +1 more source

Development of a Low-cost Spindle Unit with a Highly Efficient Spindle Shaft Cooling System Ensuring High Accuracy and High Rigidity

Journal of the Japan Society for Precision Engineering, 2013
Shoichi Morimura, R. Shimomura, Hideto Kato, Tatsuhiro Yoshimura   +3 more
exaly   +2 more sources

Research on Life Prediction of Fan Spindle Bearing Based on Gated Recurrent Unit Neural Network [PDF]

E3S Web of Conferences, 2021
In order to solve the problems of redundancy calculation and inefficiency of traditional machine learning algorithm in dealing with large amount of historical data of fan, a new predictive algorithm based on gated recurrent unit (GRU) is proposed to ...
Ma Jianeng
doaj   +1 more source