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首页> 外文会议>Conference on Industrial and Information Systems >Three-Dimensional Implementation of Modified Rolling Sphere Method for Lightning Protection of Giant Medieval Chola Monument in South India
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Three-Dimensional Implementation of Modified Rolling Sphere Method for Lightning Protection of Giant Medieval Chola Monument in South India

机译：南印度巨型中世纪霍乱纪念碑雷电保护改良轧制球体的三维实现

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With the advent of global warming, research studies have indicated concerns due to its impact on thunderstorm and lightning which could have detrimental impact on structures. Though there has been substantial progress related to protection of structures against lightning, research carried out during the past decades have led the lightning community to develop improved procedures for evaluating lightning exposure to structures. The location of vulnerable points struck by lightning and hence the placement of air terminals is obtained based on Rolling Sphere Method (RSM) whereby the striking distance is obtained as a function of stroke current. However, the model ignores dynamics of propagation of downward and upward leaders, geometry of the structure etc. This aspect becomes vital for smaller rolling sphere radii for tall structures with respect to several striking points. This research proposes carrying out detailed analysis based on utilizing the Modified Rolling Sphere Method (MRSM) which is based on the concept of an upward directed leader and its interaction with the downward leader during lightning strike on a tall structure. This research involves detailed analysis of lightning protection effectiveness based on MRSM for one of the tallest World Heritage Chola temple architectures in south India. Analysis based on varying lightning stroke currents has been carried out to ascertain the vulnerable points due to varying lightning protection levels. Further, a detailed failure analysis is also carried in line with the requirements of international standards to ascertain additional lightning protection requirements that would enable effective LPS for the proposed heritage monument.
机译：随着全球变暖的出现，研究研究表明由于其对雷暴和闪电的影响，这可能对结构有害。虽然与防止闪电的结构有关的实质性进展，但在过去几十年中进行的研究导致了闪电群体开发改进的评估闪电暴露在结构上的程序。通过闪电击中的易受攻击点的位置，因此基于轧制球体方法（RSM）获得了空气端子的放置，由此获得引人注目的距离作为行程电流的函数。然而，该模型忽略了向下和向上的领导者的传播动态，结构的几何形状等。该方面对较小的滚动球半径相对于几个打击点来对较小的结构变得至关重要。该研究提出了基于利用改进的轧制球体法（MRSM）的详细分析，该方法基于较高的轧制领导的概念和其与雷击雷击期间与向下领导的互动的概念。本研究涉及基于MRSM为印度南部最高的世界遗产霍乱寺架构之一的雷击的雷电保护效果进行了详细分析。已经进行了基于变化的闪电冲程电流的分析，以确定由于变化的避雷水平而易受攻击的点。此外，还符合国际标准的要求，以确定额外的避雷保护要求，该要求还符合详细的故障分析，以实现拟议的遗产纪念碑的有效LPS。

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