scholarly journals Online Continuous Measurement of the Operating Deflection Shape of Power Transmission Belts Through Electrostatic Charge Sensing

2017 ◽  
Vol 66 (3) ◽  
pp. 492-501 ◽  
Author(s):  
Yonghui Hu ◽  
Yong Yan ◽  
Lu Yang ◽  
Lijuan Wang ◽  
Xiangchen Qian
Keyword(s):  
Power Transmission ◽  
Continuous Measurement ◽  
Electrostatic Charge ◽  
Charge Sensing ◽  
Power Transmission Belts

Power Transmission Belts

1981 ◽  
Vol 103 (1) ◽  
pp. 6-6
Author(s):  
Larry R. Oliver
Keyword(s):  
Power Transmission ◽  
Power Transmission Belts

scholarly journals Non-Contact Vibration Monitoring of Power Transmission Belts Through Electrostatic Sensing

2016 ◽  
Vol 16 (10) ◽  
pp. 3541-3550 ◽  
Author(s):  
Yonghui Hu ◽  
Yong Yan ◽  
Lijuan Wang ◽  
Xiangchen Qian
Keyword(s):  
Power Transmission ◽  
Vibration Monitoring ◽  
Power Transmission Belts

Effect of Carbon Black on Dynamic Properties of Rubber Vulcanizates

1978 ◽  
Vol 51 (3) ◽  
pp. 437-523 ◽  
Author(s):  
A. I. Medalia
Keyword(s):  
Carbon Black ◽  
Vibration Isolation ◽  
Power Transmission ◽  
Dynamic Properties ◽  
Engineering Application ◽  
Mullins Effect ◽  
Rubber Compounds ◽  
Background Material ◽  
Power Transmission Belts ◽  
Transient Forces

Abstract The term dynamic properties as applied to elastomers refers to the response to periodic or transient forces which do not cause failure or appreciable fatigue (permanent change of properties) during the investigation. Generally this is limited to vulcanizates subjected to deformations not exceeding about 25%; and generally the dynamic properties are measured after several cycles or (in a transient experiment such as resilience) after several preconditioning transients, so that the Mullins effect or difference between first and second strain cycles is not of consequence. Thus, dynamic properties represent the viscoelastic properties of vulcanizates at deformations below about 25%, after reaching a pseudo-equilibrium state. The dynamic properties of rubber are altered tremendously by the addition of a filler. The scope of this article is restricted to the dynamic properties of rubber vulcanizates with carbon black as a filler. The effect covered in this article are important in designing rubber compounds to be used under dynamic conditions, such as tires, power transmission belts, vibration isolation mountings, etc. However, the engineering application of dynamic properties, which has been treated in detail elsewhere, is outside the scope of this review. A certain amount of background material is needed. We will first define the terms used in describing dynamic properties. The methods and instruments used for measuring these properties will be described briefly, and the nature of carbon black will be reviewed. Finally, some historical material is given, together with the dynamic behavior of typical compounds, as a preface to the review of more recent work in this field.

Electrostatic charge sensing using nanocavity-based Raman silicon laser

2021 ◽  
Author(s):  
Satoshi Yasuda ◽  
Yuki Takahashi ◽  
Takashi Asano ◽  
Susumu Noda ◽  
Yasushi Takahashi
Keyword(s):  
Electrostatic Charge ◽  
Charge Sensing ◽  
Silicon Laser

Power Transmission Belt Performance and Failure

1998 ◽  
Vol 71 (3) ◽  
pp. 619-636 ◽  
Author(s):  
Kenneth W. Dalgarno
Keyword(s):  
Failure Analysis ◽  
Power Transmission ◽  
Failure Mechanisms ◽  
Research Groups ◽  
Research Activity ◽  
The Past ◽  
Power Transmission Belts ◽  
Coherent Picture

Abstract The performance and life of power transmission belts has been investigated by a number of research groups over the past decade or so. Most studies have been directed at a particular problem with or application of belting technology, with synchronous and V-ribbed belts generating the most research activity. This paper reviews contemporary studies on the performance and failure of synchronous and V-ribbed belts to develop an overall picture of how the understanding of belt materials, mechanics, and failure mechanisms has progressed in recent years. The studies which have moved the understanding of belt behavior furthest forward have been those which sought, through an improved understanding of how a belt acts as a composite, to integrate the various strands of materials, mechanics and failure analysis knowledge available to give a clear and coherent picture of how a belt works and fails, although none of the studies seen so far can claim to have accomplished this completely.

Use of Electrostatic Charge Monitoring for Early Detection of Adhesive Wear in Oil Lubricated Contacts

2001 ◽  
Vol 124 (2) ◽  
pp. 288-296 ◽  
Author(s):  
S. Morris ◽  
R. J. K. Wood ◽  
T. J. Harvey ◽  
H. E. G. Powrie
Keyword(s):  
Early Detection ◽  
Surface Charge ◽  
Adhesive Wear ◽  
Electrostatic Charge ◽  
Charge Sensing ◽  
Lubricated Contacts ◽  
Charge Variation ◽  
Sensing Technology ◽  
Pin On Disc

Electrostatic charge sensing technology has been used to monitor adhesive wear in oil lubricated contacts. Previous work in this area demonstrated that “precursor” charge events may be detected prior to the onset of scuffing. Possible charging mechanisms associated with the precursor events were identified as tribocharging, surface charge variation, exo-emissions and debris generation. This paper discusses the proposed charging mechanisms and details a series of investigative tests using an adapted pin-on-disc (PoD) rig. The PoD tests focused on surface charge variation effects and were of two types, non-contact, where different materials were inserted in the disc, and controlled scuffing tests.

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