OPERATION RELIABILITY AND DIAGNOSTICS OF MECHANICAL SYSTEMS

被引:0
作者
Stodola, Jiri [1 ]
Stodola, Petr [2 ]
机构
[1] Univ Def, Fac Mil Technol, Brno, Czech Republic
[2] Univ Def, Fac Econ & Management, Brno, Czech Republic
关键词
Information system; Reliability; Multinomic distribution; Wear mechanisms; Diagnostics; WEAR;
D O I
暂无
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This paper deals With the use of all information system for the reliability and diagnostics of complex mechanical systems. It includes a theoretical analysis of relations and interconnection of failures of these systems, providing thus simple but sufficient data (type, rate, failure time distribution and operating mode). It deals in more detail with a correlation of simultaneous failures with the use of a multinomic model. The basic theory is reflected in an example, in which failure of plain bearings in a small set of internal combustion engines (2 sets consisting of 7 engines in a laboratory and in routine operation) were Studied and 11 fatigue mechanisms (adhesion, abrasion, erosion, fatigue, vibration, cavitations, mix of the above-mentioned mechanisms, peeling off bearing surface layers, corrosion, change of geometric shape and production, technology and assembly inaccuracies) where 35 basic diagnostic features of failures were discovered. Correlation analysis provided to find important relations between the features of failures (in total, 4 important features in relation to the number of hours worked) and to use them as basic diagnostic parameters in operation.
引用
收藏
页码:47 / 56
页数:10
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