PRE-DESIGN AND MODELLING OF A QUALITY CONTROL DEVICE  TO TEST TILES MECHANICAL CHARACTERISTICS

A new design parameter, friction-instability, is defined in this paper. Friction-instability is a variation in the coefficient of friction which may occur at any time during the life of a brake lining. A friction-index is defined which measures this variation. A lining which has a high friction index may tend to cause an automobile to swerve either to the right or to the left. A unique experimental facility is described by means of which the friction-instability characteristics of brake linings can be measured. Test results using this facility are presented and interpreted. The friction-index is proposed as a new parameter which should be taken into consideration when brakes are designed and, developed. This index should be particularly useful as a quality control device to insure that machines which use mass-produced braking systems will perform in a safe and effective manner.

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Ignition Coils Quality Control Device of Internal Combustion Engine

2018 XIV International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE) ◽

10.1109/apeie.2018.8545908 ◽

2018 ◽

Author(s):

Alexander V. Myatezh ◽

Evelina G. Langeman

Keyword(s):

Quality Control ◽

Internal Combustion Engine ◽

Combustion Engine ◽

Internal Combustion ◽

Control Device

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Agricultural machine parts quality control by dynamic non-destructive methods

MATEC Web of Conferences ◽

10.1051/matecconf/201822604034 ◽

2018 ◽

Vol 226 ◽

pp. 04034 ◽

Cited By ~ 2

Author(s):

Alexey N. Beskopylny ◽

Viktor B. Rykov ◽

Elena M. Zubrilina ◽

Andrey D. Chistyakov

Keyword(s):

Quality Control ◽

Wear Resistance ◽

Manufacturing Process ◽

Mechanical Characteristics ◽

Point Of View ◽

Agricultural Machinery ◽

Machine Parts ◽

Non Destructive ◽

Destructive Methods

The problem of quality control of agricultural machinery parts by means of dynamic non-destructive methods of impact indentation of conical shape indenters is considered. Quality of the crucial parts is considered from the point of view of a set of mechanical characteristics that determine the strength, hardness, wear resistance and deformability. These characteristics must be known and be able to control on all the details promptly and accurately both in the manufacturing process and in operation. The mechanical characteristics of metals are stochastic in nature. For this purpose, an impact indentation device was developed, and the method based on probabilistic laws of dispersion of mechanical characteristics is obtained.

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Surface quality control device for on-line applications

Measurement ◽

10.1016/j.measurement.2007.11.003 ◽

2008 ◽

Vol 41 (7) ◽

pp. 774-782 ◽

Cited By ~ 9

Author(s):

Umberto Minoni ◽

Fabio Cavalli

Keyword(s):

Quality Control ◽

Surface Quality ◽

Control Device ◽

On Line ◽

Surface Quality Control

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Numerical Analysis and Performance Test of Bidirectional Piezoelectric Control Device

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.163-167.2977 ◽

2010 ◽

Vol 163-167 ◽

pp. 2977-2982

Author(s):

Yan Hui Liu ◽

Ping Tan ◽

Fu Lin Zhou ◽

Yong Feng Du ◽

Wei Ming Yan

Keyword(s):

Numerical Analysis ◽

Performance Test ◽

Mechanical Characteristics ◽

Input Voltage ◽

Control Device ◽

Control Force ◽

Friction Control ◽

Variable Friction ◽

Piezoelectric Control ◽

And Performance

Based on the configuration and mechanical characteristics of piezoelectric actuator, the bidirectional piezoelectric variable friction control device which can produce control force in two orthogonal directions was designed and the relation equation of control force with input voltage for this control device was presented. Finally, one piezoelectric variable friction control device was manufactured and performance test of this control device was processed. The result of numerical analysis and experiment shows the bidirectional piezoelectric variable friction control device can produce semi-active control force fast, and the performance of this control device do not change when the frequency of input excitation varies and the control force of this control device has stable mechanical properties.

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