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

NEES实时多向地震模拟系统升级，增强三维测试能力

• 批准号: 0429184
• 负责人: James Ricles
• 金额: $ 6.85万
• 依托单位: Lehigh University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-10-01 至 2005-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0429184&HistoricalAwards=false
• 关键词: Upgrade; NEES; Real; time; Multidirectional

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.

该奖项为利哈伊大学提供资金，用于购买先进的仪器，并为小乔治·E·布朗进行相关工作。地震工程模拟网络(NEES)-实时多方向(RTMD)地震模拟系统设施，将由NEES Consortium，Inc.在2005财年至2014财年作为国家共享设施运营。这笔资金用于以几种方式升级RTMD地震模拟设施的所需设备：(1)可以进行更复杂的3D测试，需要6个动态自由度；(2)执行器的最大速度将是当前执行器的两倍(即从1000毫米/秒增加到2420毫米/秒)；(3)使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，数据采集将更容易使用；(5)在液压电源接通之前，可以更准确地验证新测试算法和伺服液压控制规律的开发；(6)通过使用液压关闭模式软件，将加强对共享用户的培训，使控制系统架构的特征能够通过仿真来展示；以及(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；对现有控制器进行的控制系统改造，以实现6自由度；液压执行器软管；仪器和仪器布线和机架系统；执行器液压关闭模式软件；DAS可编程校准参考和维护软件；以及数字化设备，用于收集和编目将在RTMD设施中进行的实验的元数据。