Results 251 to 260 of about 1,947,627 (287)

Low Speed Bearings’ Instantaneous Angular Speed Behavior

2015
This work describes shaft’s Instantaneous Angular Speed (IAS) behavior in the presence of a spall on bearing’s race at low speeds. It is shown that fault signature becomes more apparent in IAS signal when speed decreases and load increases. EEMD processing of the signal is implemented to overcome the shortcoming of IAS sensitivity at low loading ...
W. Moustafa, O. Cousinard, F. Bolaers, K. Ait Sghir, J. P. Dron   +4 more
openaire   +1 more source

Angular Speed of a Compact Disc

The Physics Teacher, 2006
A spinning motion of a compact disc in a CD player offers an interesting and challenging problem in rotational kinematics with a nonconstant angular acceleration that can be incorporated into a typical introductory physics class for engineers and scientists.
openaire   +1 more source

Cyclostationarity analysis of instantaneous angular speeds for monitoring chatter in high speed milling

IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012
The detection of chatter is crucial in machining process and its monitoring is a key issue, so as to insure a better surface quality, to increase productivity and to protect both the machine and the workpiece. An investigation of chatter monitoring in high speed machining process on the basis of cyclostationary analysis of the instantaneous angular ...
Mourad Lamraoui, Marc Thomas 0002, Mohamed El Badaoui, François Girardin   +3 more
openaire   +1 more source

Research on the method of simultaneous measurement of angular position and angular speed for time grating

Ninth International Symposium on Precision Mechanical Measurements, 2019
A method is presented in order to realize the measurement of angular position and angular speed simultaneously based on the theory of time grating. A model of angular speed measurement is built by using the Doppler Effect which is produced by relative uniform motion of bi-coordinate system inside the time grating. Measure benchmarks of angular position
Zhonghua Gao, Pengxia Li, Jialuo Wan
openaire   +1 more source

Student understanding of the kinematic quantities of angular speed and angular acceleration

2008
This study describes first and second year university physics students' understanding and reasoning of the concepts, angular speed and angular acceleration. The analysis was based on student responses to various tasks presented to them during one hour long interviews.
openaire   +1 more source

Using a hall sensor with GoGo board to determine angular speed and angular frequency

Physics Education
Abstract This research focuses on modifying two physics experiments, a rotating wheel and a simple harmonic oscillator, to train pre-service physics teachers with an emphasis on digital and maker skills. The primary aims are twofold: first, to demonstrate the application of a Hall sensor, combined with the GoGo Board, in determining the ...
Kanokporn Intakaew, Pornrat Wattanakasiwich   +1 more
openaire   +1 more source

Basic Speed Ratio of an Angular Contact Bearing

Journal of Lubrication Technology, 1980
A characteristic number, the basic speed ratio for an angular contact ball bearing, is defined and shown to be 1) accurately measurable; and 2) dependent on ball-race coupling. Some measurements of basic speed ratio are discussed in terms of kinematic equivalence, and compared with predictions obtained from a computer simulation.
openaire   +1 more source

A Neural Network-based Angular Speed Controller

1998
The paper describes an implementation of a neural network (NN)-based control algorithm trained to emulate the behaviour of a digital PI controller. The NN-based controller has been applied to the angular speed control loop of a dc motor drive. The experimental results confirm that the NN-based angular speed controller has provided the dynamic behaviour
Pavletić, Renata, Kovačić, Zdenko
openaire   +2 more sources

A Hydraulic Axial Piston Pump Fault Diagnosis Based on Instantaneous Angular Speed under Non-Stationary Conditions

Lubricants, 2023
Xintao Zhou
exaly  

Race walking angular displacement at increasing speed

2013
Aim: The aim of this study was to describe the angular displacements during race walking (RW) in the three planes of motion and at incremental speeds. In fact, in the literature RW angles have been mostly described, focusing on few speeds and sagittal plane of motion.1 Method: 15 athletes race-walked on a treadmill at incremental speed (2.78 – 4.73 m/s)
G. Pavei, A. La Torre, D. Cazzola
openaire   +1 more source