We performed a whole-body mapping study of the effect of unilateral muscle vibration, eliciting spindle Ia firing, on the control of standing and walking in humans. During quiet stance, vibration applied to various muscles of the trunk-neck system and of the lower limb elicited a significant tilt in whole body postural orientation. The direction of vibration-induced postural tilt was consistent...

The root mean square (RMS) value of a vibration signal is an important indicator used to represent the amplitude of vibrations in evaluating the quality of highspeed spindles. However, RMS is unable to detect a number of common fault characteristics that occur prior to bearing failure. Extending the operational life and quality of spindles requires reliable fault diagnosis techniques for the an...

We utilized an in vitro adult mouse extensor digitorum longus (EDL) nerve-attached preparation to characterize the responses of muscle spindle afferents to ramp-and-hold stretch and sinusoidal vibratory stimuli. Responses were measured at both room (24°C) and muscle body temperature (34°C). Muscle spindle afferent static firing frequencies increased linearly in response to increasing stretch le...

The goal of this study is to dynamically simulate a turning-centre main spindle system utilizing the systems receptance coupling technique determine system's first three resonant frequencies in event transverse vibrations. findings are then confirmed using finite element ANSYS software. significance analysing described that it can be utilized optimize terms resonance for improved performance vi...

The processing accuracy and productivity of metal-cutting machines are largely determined by the initial characteristics spindle assembly, since it is last link in kinematic chain main drive. Therefore, high demands placed on assemblies to ensure rotational accuracy, speed, parametric reliability, etc. Since movement shaping carried out bearings, they make a decisive contribution units. install...

The article defines the optimal equipment necessary for repair of body stands a pipe-rolling reduction-stretching mill. stand mill crate, made 40X structural alloy steel, undergoes wear bearing seats during operation. Body restoration is carried out by surfacing worn surfaces part with subsequent machining to dimensions specified in design documentation. In process medium-carbon steels, carbide...

Proprioception is critical for the control of many goal-directed activities of daily living. While contributions from skin and joint receptors exist, the muscle spindle is thought to play an important role in allowing accurate judgments of limb position and movement to occur. The discharges elicited from muscle spindles can be degraded by simultaneous agonist-antagonist tendon vibration, causin...

Reducing the deviation effect from specified machining conditions on quality of process in real time is desired result intelligent spindle control system. To implement such a system, dynamic interaction model technological system with cutting was developed. The transfer matrix method multibody used development model. physical closure condition for using transient implemented developed by introd...