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首页> 外文期刊>Earthquake Engineering & Structural Dynamics >Real-time distributed hybrid testing: coupling geographically distributed scientific equipment across the Internet to extend seismic testing capabilities
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Real-time distributed hybrid testing: coupling geographically distributed scientific equipment across the Internet to extend seismic testing capabilities

机译：实时分布式混合测试：通过Internet耦合地理分布的科学设备以扩展地震测试功能

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摘要

Large-scale testing and qualification of structural systems and their components is crucial for the development of earthquake engineering knowledge and practice. However, laboratory capacity is often limited when attempting larger experiments due to the sheer size of the structures involved. To overcome traditional laboratory capacity limitations, we present a new earthquake engineering testing method: real-time distributed hybrid testing. Extending current approaches, the technique enables geographically distributed scientific equipment including controllers, dynamic actuators and sensors to be coupled across the Internet in real-time. As a result, hybrid structural emulations consisting of physical and numerical substructures need no longer be limited to a single laboratory. Larger experiments may distribute substructures across laboratories located in different cities whilst maintaining correct dynamic coupling, required to accurately capture physical rate effects. The various aspects of the distributed testing environment have been considered. In particular, to ensure accurate control across an environment not designed for real-time testing, new higher level control protocols are introduced acting over an optimised communication system. New large time-step prediction algorithms are used, capable of overcoming both local actuation and distributed system delays. An overview of the architecture and algorithms developed is presented together with results demonstrating a number of current capabilities.
机译：结构系统及其组成部分的大规模测试和鉴定对于地震工程知识和实践的发展至关重要。但是，由于所涉及结构的绝对大小，在尝试进行较大实验时，实验室的能力通常会受到限制。为了克服传统实验室的容量限制，我们提出了一种新的地震工程测试方法：实时分布式混合测试。扩展当前的方法，该技术使地理分布广泛的科学设备（包括控制器，动态执行器和传感器）可以跨Internet实时耦合。结果，由物理和数字子结构组成的混合结构仿真不再需要局限于一个实验室。较大的实验可能会在不同城市的实验室中分布子结构，同时保持正确捕获动态速率耦合所需的正确动态耦合。已经考虑了分布式测试环境的各个方面。特别是，为了确保在并非为实时测试而设计的环境中实现精确控制，引入了新的更高级别的控制协议，它们在优化的通信系统上起作用。使用了新的大型时步预测算法，能够克服本地驱动和分布式系统延迟。概述了所开发的体系结构和算法，并给出了证明许多当前功能的结果。

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