A paradigm shift is emerging in system reliability and maintainability. The military and industrial sectors are moving away from the traditional breakdown and scheduled maintenance and adopting concepts referred to as Condition Based Maintenance. In addition to signal processing and subsequent diagnostic and prognostic algorithms these new technologies require storage of large volumes of both q...

Abstract The objectives of asset management are to ensure secure service the objects and/or network, preserve infrastructure capital and maintain function through their life cycle. Maintenance activities should performance future serviceability in such way that an adequate level reliability with respect requirements applicable structure under consideration is preserved. Hence low limit maintena...

This design describes a wide range voltage to frequency converter in a single PSoC chip, which can measure wide range of voltage between 50mV-5000mV and found suitability in sensor applications. This design is implemented in a PSoC3 device IC CY8C3866. The design implements analog and digital user modules: an IDAC, COMPARATOR, PWM, COUNTER, UART and LCD. The comparator gets the analog input fro...

Abstract When dealing with maintenance in ships engine room, the space available around machinery and systems (clearance) plays an important role may significantly affect cost of intervention. In a first part current research study Gualeni et al. (Ship Technol Res, 10.1080/09377255.2021.2020949, 2022), quantitative relation between costs increment due to clearance reduction is determined, using...

Maintenance time is a critical quantitative index in maintainability prediction. An efficient maintenance time measurement methodology plays an important role in early stage of the maintainability design. While traditional way to measure the maintenance time ignores the differences between line production and maintenance action. This paper proposes a corrective MOD method considering several im...

In the current competitive world, industrial companies seek to manufacture products of higher quality which can be achieved by increasing reliability, maintainability and thus the availability of products. On the other hand, improvement in products lifecycle is necessary for achieving high reliability. Typically, maintenance activities are aimed to reduce failures of industrial machinery and mi...

This paper analyses the production availability and associated maintenance costs of an offshore wind turbine with a horizontal axis configuration using Petri Nets modelling Monte Carlo Simulation. For this purpose, different features are implemented: reliability maintainability characteristics components; logistics operations, including types vessels, mobilization time, weather window. The stra...

The quality of the software design has a considerable impact on software maintainability. Improving software quality can reduce costs and efforts of software maintenance. Cohesion, as one of software quality characteristics, can be used as an early indicator for predicting software maintenance efforts. This paper improves Martin’s cohesion metric, which is one of the well-known and wellaccepted...

The study of component and process reliability is the basis of many efficiency evaluations in Operations Management discipline. For example, in the calculation of the Overall Equipment Effectiveness (OEE) introduced by Nakajima [1], it is necessary to estimate a crucial parameter called availability. This is strictly related to reliability. Still as an example, consider how, in the study of ser...

Complex systemmaintainability verification is always a challenging problem due to limited sample sizes. Consequently, conducting maintenance experiments in a laboratory environment is an appropriate way to obtain data for maintainability verification. In maintenance experiments, faults are seeded in the equipment and maintenance activities are implemented to record repair time. In this process,...