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Lehigh University提供了购买高级仪器的资金，并为乔治·E·布朗（George E.地震模拟设施以几种方式：（1）可以进行更复杂的3-D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 mm/sec增加到2420 mm/sec）； （3）可以使用具有动态测量功能的传感器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）在打开液压功率之前，可以更准确地验证新的测试算法和伺服液压控制定律； （6）通过使用液压OFF模式软件可以增强共享用户的培训，从而可以通过仿真来说明控制系统体系结构的功能； （7）元数据将更方便，准确地获得和记录。请求的设备包括：动态执行器；伺服阀；液压服务歧管；控制系统对现有控制器进行修改，以使6度的自由度；液压执行器软管；仪表和仪器电缆和机架系统；执行器液压模式软件； DAS可编程校准参考和维护软件；和数字化设备收集和编目元数据，以在RTMD设施中进行实验。