In this paper, we present a strongly fault-tolerant design for the l-level k-ary tree multiprocessor and examine its reconfigurability. Our design assigns one spare node to the regular nodes of each subtree with lc levels. Moreover, spare nodes are interconnected to form a spare tree. Our approach utilizes the circuit-switched capabilities of the communication modules of the spare nodes to tole...

When stopping production, the manufacturer has to decide on the lot size in the final production run to cover spare part demand during the end-of-life phase. This decision can be supported by forecasting how much demand is expected in the future. Forecasts can be obtained from the installed base of the product, that is, the number of products still in use. Consumer decisions on whether or not t...

We consider combined inventory control and throughput time reduction in multi-echelon, multiindenture spare part networks for system upkeep of capital goods. We construct a model in which standard throughput times (TPT) for repair and transportation can be reduced at additional costs. We first estimate the marginal impact of TPT reduction on the system availability. Next, we develop an optimiza...

Providing the required spare parts is an important issue of product support, which is important for system/machine utility improvement. Required spare parts estimation can be performed through different approaches, one of the realistic and wellfounded spare parts estimation method is based on the system’s reliability characteristics and taking into consideration the system operating environment...

Operators of long field-life systems like airplanes are faced with hazards in the supply of spare parts. If the original manufacturers or suppliers of parts end their supply, this may have large impacts on operating costs of firms needing these parts. Existing end-of-supply evaluation methods are focused mostly on the downstream supply chain, which is of interest mainly to spare part manufactur...

Industry with a high level of investment, such as the oil and gas industry, needs a high level of availability. Product support and its related issues such as spare parts play an important role in maintaining a system at a desired level of availability. Reliability performance is a critical factor for product support and spare parts planning which can be influenced by operational environment. T...

Two variants of a simple stochastic model for planning the inventory of spare components supporting maintenance of an industrial system are developed. In both variants, the aim is to determine how many spare components are needed at the beginning of a planning interval to fulfil demand for corrective replacements during this interval. Under the first variant, the acceptable probability of spare...