Abstract: Computer simulation of dynamic systems lies at the center of engineering practice. Automatic control system design and testing is one of the fields where simulation programs are extensively used at various development phases. Older approach to build simulation programs was procedural one. Recently, the attention shifts toward Object Oriented (OO) approach. The main reason for this shift is to get benefits of reusability and adoptability as the main OO features. This paper examines an OO based modeling and simulation framework that could be used to construct various dynamic system simulations including real-time ones. Both adoptability and reusability are considered with paying attention also to extension of the number of simulation developers to include “old fashion” and “non-OO” programmers. To illustrate the usage of such an approach, a typical flight control system is used as an example. In this research paper the relevant functionalities of the flight control system are scattered among components. These components have the capability to interact to produce simulations.
Keywords: systems simulation; object oriented programming, flight simulation.
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Abstract: Frequent seismic activity in various parts of India has jeopardized the existing building stock and hence necessitated their vulnerability assessment. Such assessments are helpful for the administrators to adopt appropriate measures that can reduce the loss of human lives and properties. Imphal is a growing city in the northeast part of India, which falls under zone V. Most recent construction in the city consists of poorly designed and constructed buildings. The older buildings, even constructed in compliance with relevant standards at that time, may not comply with the more stringent specifications of the latest standards. Further, with high degree of population density in the urban, 998/Km2 in Imphal West and 643/Km2 in Imphal East, while the average density of population of the state of Manipur recorded at 115/Km2 and concentration of houses and buildings in the area consisting of significant numbers of liveable and dilapidated houses (Census of India- 2011), assessment of seismic vulnerability of existing buildings is a matter of great importance. The present study deals with the seismic vulnerability assessment of the existing buildings in Imphal. A field survey of some of the existing buildings in Imphal was carried out and a preliminary assessment of seismic vulnerability was made. The Rapid Visual Screening (RVS) was done by using RVS form by Prof. Arya. One of the buildings which were found to be vulnerable from RVS was evaluated using numerical analysis, using SAP 2000 in order to assess their vulnerability for Simplified Vulnerability Assessment (SVA). The deficient members observed from the output are suggested for strengthening and retrofitting.
Keywords: Vulnerability Assessment, RVS, SVA, Modelling, SAP, Retrofitting
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