Results 41 to 50 of about 18,648 (210)

Design of ultraprecision machine tools with application to manufacturing of miniature and micro components [PDF]

open access: yes, 2005
Currently the underlying necessities for predictability, producibility and productivity remain big issues in ultraprecision machining of miniature/microproducts.
Chen   +20 more
core   +1 more source

Evaluation of pressure-stiffness coupling in brush seals [PDF]

open access: yes, 2010
Brush seals are comprised of fine diameter fibers densely packed between retaining and backing plates. To achieve seal compliance bristles are arranged to contact rotor with some lay angle.
Aksit, Mahmut Faruk   +2 more
core   +1 more source

STUDY OF THE DYNAMICS OF SPINDLE SHAFT ON GAS-STATIC BEARINGS

open access: yesProblems of Friction and Wear
This study delves into the complex dynamics of spindle shafts mounted on gas-static bearings, employing computational experiments and analysis to reveal crucial insights for optimizing high-precision machining processes. We identify natural frequencies and resonant tendencies of spindle vibrations through advanced Finite Element Method (FEM ...
Oleksii Breshev   +4 more
openaire   +2 more sources

Mechanized fluid connector and assembly tool system with ball detents [PDF]

open access: yes, 1991
A fluid connector system is disclosed which includes a modified plumbing union having a rotatable member for drawing said union into a fluid tight condition.
Smith, Steven A., Zentner, Ronald C.
core   +1 more source

A Study on the Static and Dynamic Characteristics of the Spindle System of a Spiral Bevel Gear Grinding Machine

open access: yesMachines
To enhance the static and dynamic performance of the grinding wheel spindle system, with the gear grinding machine (YKF2060) as the research object, a static mechanics model of the spindle system was established based on Castigliano’s theorem, taking ...
Shuai Huang   +3 more
doaj   +1 more source

ANALYSIS AND OPTIMIZATION OF DYNAMIC OUTPUT SHAFT STRUCTURE BASED ON FINITE ELEMENT METHOD

open access: yesJixie qiangdu, 2020
The output shaft is one of the core components of the gearbox of an oil rig,The reliability of the output shaft directly affects the service life and economic benefit of the oil rig.
LI YunPeng   +3 more
doaj  

Large-bore tapered-roller bearing performance and endurance to 2.4 million DN [PDF]

open access: yes, 1983
The operating characteristics and experimental life estimates for 120.65 mm bore tapered roller bearings of two designs under combined radial and thrust loads were determined. A modified standard bearing design was tested at speeds up to 15,000 rpm.
Parker, R. J.
core   +1 more source

Non-metallic brush seals for gas turbine bearings [PDF]

open access: yes, 2004
A non-metallic brush seal has been developed as an oil seal for use in turbomachinary. Traditionally labyrinth-type seals with larger clearances have been used in such applications. Labyrinth seals have higher leakage rates and can undergo excessive wear
Akşit, Mahmut Faruk   +4 more
core   +1 more source

THERMAL CHARACTERISTIC ANALYSIS METHOD OF MOTORIZED SPINDLE BASED ON THERMAL LOAD OPTIMIZATION CORRECTION

open access: yesJixie qiangdu, 2020
For the inaccuracy of empirical heat loads for spindle thermal simulations,a thermal simulation analysis method onto motorized spindle unit is proposed.Firstly,the fluid-solid-heat coupling simulation model of the motorized spindle unit is established by
MENG LingCong   +4 more
doaj  

Maximizing Minimum Pressure in Fluid Dynamic Bearings of Hard Disk Drives [PDF]

open access: yes, 2007
We focus on the central spindle which supports the rotating magnetic platters which hold all of the data. The spindle must operate with great precision and stability at high rotational speeds.
Atena, Agegnehu   +11 more
core  

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