The slamming of the planing crafts is the most important structural phenomenon that a vessel is encountered during their career. Many researchers have investigated this phenomenon in various methods. In this paper we investigated the analytical results of impact of symmetrical wedge to the water surface briefly, then the asymmetric impact of a 2D section of a wedge to the water surface was studied. To analyze above phenomenon, we used a numbers of analytical relationships that summarizes how to achieve these equations. Finally, obtained analytical relationships were used to determine the pressure distribution and maximum value on a wedge with different deadrise angles. The results indicated good agreement between the obtained results and results of other researcher’s studies.
Department of Maritime Engineering, Amirkabir University of Technology, Tehran, Iran.
A performance measurement framework for a company that adopted lean manufacturing is needed to measure their achievement in the implementation of lean manufacturing system.A comprehensive design of the performance measurement framework requires an understanding of all the elements including performance of perspectives and key indicators of measurements, anddecision support methods such asFuzzy Analytic Hierarchy Process (FAHP) and Analytic Hierarchy Process (AHP).The comparison of original AHP and FAHP methods in term of decision making for lean manufacturing performance measurement system was performed in this paper. A benchmarking to compute performance based on weight between FAHP and AHP was done as a case study in automotive company. The result of the weight values of AHP and FAHP methods indicatedalmost similar among performances of lean perspectives and indicators for the company’s case study.
Mechanical Engineering, Universitas Riau, Indonesia
Mechanical & Construction Engineering, Northumbria University,Newcastle Upon Tyne, United Kingdom
In Vessel Traffic System (VTS), AIS can detect a larger number of targets without considering the shadow effect and can provide more voyage information for port center.AIS can give full information such as types of ship, size, name, MMSI number and etc. AIS system is very important in the VTS to control ship in and out at the port area. This paper discussed on development of AIS system. The system was applied for safety purpose by taking ship tracking in Strait of Batam-Singapore.
Mechanical Engineering Faculty, Universiti Teknologi Malaysia (UTM), 81310, UTM Johor Bahru
