Dependability Characteristics - Indicators for Maintenance Performance Measurement of Manufacturing Technology

Abstract

Authors define general dependability characteristics (reliability, maintainability, supportability and availability) and their measures. Further there is introduced method of data collection which shall be planned taking into account appropriate targets. Dependability data analysis needs clear understanding of an object, its operation, environment and physical attributes to be obtained required dependability measures which are described. These measures can be used as indicators for measuring maintenance impacts on reliability and maintainability. Data collection and its evaluation help to monitor the impact of maintenance on these indicators. Dependency between non-fulfillment of preventive maintenance and failure intensity including maintenance costs are also evaluated.

The Operational Reliability Analysis of Machinery: A Case Study of Forest Forwarders and Their Technological Equipment

“…This distribution is applied to data modeling regardless of whether the failure intensity is rising, falling or constant. Weibull distribution is flexible and adaptable for data from a wide range [16][17][18]. One of the advantages of using Weibull distribution is that the failure rate can have a rising, falling or constant trend [19].…”

FMEA method in operational reliability of forest harvesters

“…It is usable for analysis of systems consisting of thousands parts. It is not usable for systems with backup, their combinations and dependencies and also it is not possible to use for complex strategies of maintenance [9,19].…”

Failure Analysis and the Evaluation of Forced-in Joint Reliability for Selected Operation Conditions

“…Mathematical analyses and those with the use of finite elements are performed at the design stage. One example is [8], in which the authors provide simplified Lame's equations for determining assembly pressures and stresses in thin wall rims. By means of the FEM (Finite Element Method) analysis, the authors of [9] performed a simulation of the maximum forces needed to press one element onto another in relation to match values.…”