A reliability-based maintenance technicians’ workloads optimisation model with stochastic consideration

A multi-stage stochastic programming for condition-based maintenance with proportional hazards model

Condition-Based Maintenance (CBM) optimization using Proportional Hazards Model (PHM) is a kind of maintenance optimization problem in which inspections of a system relevant to its failure rate depending on the age and value of covariates are performed in time intervals. The general approach for constructing a CBM based on PHM for a system is to minimize a long run average cost per unit of time...

Bi-level Model for Reliability based Maintenance and Job Scheduling

Many defects in manufacturing system are caused by human resources that show the significance of the human resources in manufacturing systems. Most manufacturers attempt to investigate the human resources in order to improve the work conditions and reduce the human error by providing a proper work-rest schedule. On the other hand, manufacturer deal with machine scheduling based on demand and wo...

Rolling Prediction Based Software Reliability Model Consideration with Learning Curve

Software reliability is an important factor for evaluating software quality in the domain of safety-critical software. The neural network prediction method has been widely used in reliability prediction area. However, Data noise and other issues make this approach easy to falling into local optimum, and reduce the accuracy of the prediction, it also affect the applicability of the model. In thi...

Optimising Maintenance Cost Performance with Skilled Technicians

Purpose: High maintenance cost is the common issue in building industry due to low service quality of maintenance management in Malaysia. Lack of preventive measure is the problem that implicates poor maintenance performance. Scheduled maintenance is suggested to improve the maintenance performance. However, the effectiveness of scheduled maintenance can be greatly influenced by the availabilit...

Ranking stochastic efficient DMUs based on reliability

A stochastic droplet collision model with consideration of impact efficiency

A stochastic droplet collision model (Sommerfeld [9]), based on the creation of a fictitious collision partner is described, taking into account impact efficiencies. The model of O’Rourke [5] is considered to predict the outcome of water-droplet collisions, being grazing or coalescing, and to predict post-collision velocities. The relevance of impact efficiencies is discussed for water droplet ...