Upgrade of NEES Real-time Multidirectional Earthquake Simulation System to Enhance 3-D Testing Capabilities

该合同为里海伊大学提供资金，用于购买先进的仪器，并为小乔治·e·布朗地震工程模拟网络(NEES) -实时多向（RTMD）地震模拟系统设施执行相关工作，该设施将由NEES财团公司运营，在2005 - 2014财年期间作为国家共享使用设施。这笔资金用于从几个方面升级RTMD地震模拟设施所需的设备：(1)可以进行需要6个动态自由度的更复杂的3-D测试；(2)执行器的最大速度将是当前执行器的两倍（即从1000mm /sec增加到2420mm /sec）；(3)采用具有动态测量能力的传感器，可以获得准确的动态测量；(4)通过启用可编程校准，数据采集将更易于使用；(5)开发新的检测算法和伺服液压控制规律，可以在液压电源接通前更准确地进行验证；(6)将通过使用液压关闭模式软件加强对共享用户的培训，使控制系统架构的特点能够通过仿真来说明；(7)元数据的获取和记录将更加方便和准确。所要求的设备，包括：动态执行器；伺服阀;液压服务歧管；对现有控制器的控制系统进行修改，使其具有第6个自由度；液压执行器软管；仪表及仪表布线及机架系统；执行器液压关闭模式软件；DAS可编程校准参考和维护软件；以及对设备进行数字化，以便为在RTMD设施中进行的实验收集和编目元数据。

This award provides funding for Lehigh University to purchase advanced instrumentation and to perform associated work for the George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) - Real-time Multidirectional (RTMD) Earthquake Simulation System facility that will be operated by NEES Consortium, Inc., as a national shared use facility during FY 2005 - FY 2014. This funding is provided for requested equipment that will upgrade the RTMD earthquake simulation facility in several ways: (1) more complex 3-D tests can be performed which require 6 dynamic degrees of freedom; (2) the maximum velocity of an actuator will be twice that of the current actuators (i.e., increasing from 1000 mm/sec to 2420 mm/sec); (3) accurate dynamic measurements can be obtained using sensors with dynamic measuring capabilities; (4) the data acquisition will be easier to use, by enabling programmable calibration; (5) development of new testing algorithms and servo-hydraulic control laws can be more accurately verified before hydraulic power is turned on; (6) training of shared users will be enhanced by the use of hydraulic off mode software, enabling the features of the control system architecture to be illustrated through simulation; and (7) Metadata will be more conveniently and accurately obtained and documented. The requested equipment, includes: dynamic actuator; servo valve; hydraulic service manifold; control system modifications to the existing controller to enable a 6th degree of freedom; hydraulic actuator hoses; instrumentation and instrumentation cabling and rack system; actuator hydraulics off mode software; DAS programmable calibration reference and maintenance software; and digitalizing equipment to collect and catalog Metadata for experiments to be performed in the RTMD facility.