Real-time hybrid simulation (RTHS) plays an essential role in understanding the time-dependent behavior of structures when subject to extreme hazard loadings in civil engineering research. During RTHS, physical experiment on critical substructure component(s) and numerical simulation of the remaining structure are seamlessly integrated to obtain the whole structural response at the system level. To leverage testing equipment among several laboratories for complex structure systems, distributed real-time hybrid simulation (dRTHS) was proposed and has been successfully applied in seismic experimentation of building structures. In addition to actuator delay experienced in a typical RTHS experiment, network delay due to data transmission between controllers of loading equipment located at geographically distributed laboratories also exists in dRTHS. To compensate the total large and varying time delay, four delay compensation methods were implemented in a recently developed dRTHS testing platform and their performances were evaluated through a series of virtual and physcial dRTHS experiments. The development of the dRTHS testing platform and the four delay compensation methods are introduced first. Then testing results demonstrating the effectivness of these methods are presented together with the reliability of dRTHS experimental method in earthquake engineering and its potential applicability in other engineering fields.

中文翻译：

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分布式实时混合仿真测试平台及延迟补偿方法

实时混合仿真 (RTHS) 在理解土木工程研究中承受极端危险载荷时结构的瞬态行为方面发挥着重要作用。在RTHS期间，关键子结构部件的物理实验和剩余结构的数值模拟无缝集成，以获得系统级的整体结构响应。为了在多个实验室之间利用复杂结构系统的测试设备，提出了分布式实时混合模拟（dRTHS），并已成功应用于建筑结构的抗震试验。除了在典型的 RTHS 实验中经历的执行器延迟外，dRTHS 中也存在由于位于地理位置分散的实验室的加载设备控制器之间的数据传输而导致的网络延迟。为了补偿总的大且变化的时间延迟，在最近开发的 dRTHS 测试平台中实施了四种延迟补偿方法，并通过一系列虚拟和物理 dRTHS 实验评估了它们的性能。首先介绍了dRTHS测试平台的开发和四种延迟补偿方法。然后展示了证明这些方法有效性的测试结果以及 dRTHS 实验方法在地震工程中的可靠性及其在其他工程领域的潜在适用性。首先介绍了dRTHS测试平台的开发和四种延迟补偿方法。然后展示了证明这些方法有效性的测试结果以及 dRTHS 实验方法在地震工程中的可靠性及其在其他工程领域的潜在适用性。首先介绍了dRTHS测试平台的开发和四种延迟补偿方法。然后展示了证明这些方法有效性的测试结果以及 dRTHS 实验方法在地震工程中的可靠性及其在其他工程领域的潜在适用性。