Plan Repair in Single-Agent and Multi-Agent Systems

Standards for the repair of buildings following flooding

Flooding is a major problem for many people in the United Kingdom, posing a risk to health, safety and wellbeing, and resulting in widespread damage to property. The scale of the problem can be gauged from the following quotation (OST, 2004): Nearly 2 million properties in floodplains along rivers, estuaries and coasts in the UK are potentially...

Effect of Spatial Variability on Maintenance and Repair Decisions for Concrete Structures

Due to the increasingly number of elder and deteriorating structures, maintenance is becoming a serious and more complex problem in most of the countries. A lot of studies have been carried out in this area for years. However, the fact that a lot of parameters show spatial random variability, which is linked with dependencies on temperature, w/c...

Renewal Processes and Repairable Systems

In this thesis we discuss the following topics: 1. Renewal reward processes The marginal distributions of renewal reward processes and its version, which we call in this thesis instantaneous reward processes, are derived. Our approach is based on the theory of point processes, especially Poisson point processes. The idea is to represent the...

Anti-reflective cracking design of (reinforced) asphaltic overlays

Residual thermal stresses around bonded fibre metal laminate repair patches on an aircraft fuselage

Economical optimization of the maintenance of a river bed protection construction

This example of optimizing the maintenance by minimizing the sum of the present values of the tisk and the costs of repair in a certain plan peliod is a part of a study done by the author by order of the Delft University of Technology. In this study also a classification of ageing models and a definition of the usefulness of inspection is given....

NLR experience with high velocity burner rig testing 1979-1989

The NLR has two high velocity burner rigs for oxidation and hot corrosion testing. A large, custom-built rig was commissioned in 1977 to enable actual components to be tested. A smaller rig for specimen testing was purchased in 1986. Experience with these rigs over the last decade is reviewed.

Patch repair of corroded aircraft skin areas

Environmental conditions in Europe are conducive to corrosion attack of aircraft structures. In military aircraft corrosion problems occur especially at countersunk fastener holes. The corrosion is generally removed by grinding. A limited amount of material removal is specified by the aircraft manufacturers, but it is sometimes necessary to...