The frequent impulse collisions and wear between the ball cage pocket not only affect bearing stability but also significantly impact deterioration of service life. A comprehensive dynamic model for analyzing stability, skidding degree, ball–cage collision, distribution, rate four types is proposed. series tests whirling conducted on self-lubricating test bench using high-speed photographic tec...

The normal functioning of induction motors depend largely on ball bearing. Proper functioning and operation of ball bearing is the result of its maintenance by condition monitoring. Out of the various measures of condition monitoring vibration monitoring is the most extensively used and economical technique to detect, identify and distinguish fault in induction motors. In this research paper in...

This paper introduces a hybrid scheme for simulating rigid bodies in contact. W e use (cm adaptive strategy for handling two different contact situations, 'bouncing' and 'steady'. To handle contact f o r rigid bodies, we use two impulse-based methods to explicitiy or implicitly compute impulses due to collision impact. These two methods are used so that different impulse methods are applied ada...

Human observers may perceive not only spatial and temporal dimensions of the environment, but also dynamic physical properties that are useful for the control of behavior. A study is presented in which visual and auditory perception of elasticity in bouncing objects, which was specified by kinematic (spatiotemporal) patterns of object motion, were examined. In experiment 1, observers could perc...

This paper models a multibody collision in the impulse space as a state transition diagram, where each state represents a phase during which impacts are “active” at only a subset of the contact points. A state transition happens whenever an active impact finishes restitution, or an inactive impact gets reactivated, depending on whether the two involved bodies are instantaneously penetrating int...

For a wide variety of problems, creating detailed continuous models of (continuous) physical systems is, at the very least, impractical. Hybrid models can abstract away short transient behaviour (thus introducing discontinuities) in order to simplify the study of such systems. For example, when modelling a bouncing ball, the bounce can be abstracted as a discontinuous change of the velocity, in...

in this paper, a novel decision based median (dbm) filter for enhancing mr images has been proposed. the method is based on eliminating impulse noise from mr images. a median-based method to remove impulse noise from digital mr images has been developed. each pixel is leveled from black to white like gray-level. the method is adjusted in order to decide whether the median operation can be appli...

Juggling is a typical example to represent dexterous tasks of humans. There are many kinds of juggling, e.g., the ball juggling and club juggling in Fig. 1. Other kinds are the toss juggling, bouncing juggling, wall juggling, wall juggling, box juggling, devil sticks, contact juggling and so on. These days, readers can watch movies of these juggling in the website youtube and must be surprised ...