The CERL Equipment Fragility and Protection Procedure (CEFAPP): Experimental Definition of Equipment Vulnerability to Transient Support Motions.
The CERL Equipment Fragility and Protection Procedure (CEFAPP): Experimental Definition of Equipment Vulnerability to Transient Support Motions.
复制标题
CERL 设备脆弱性和保护程序 (CEFAPP)：设备对瞬态支持运动脆弱性的实验定义。
DOI：
--
复制
发表时间：
1997
期刊：
影响因子：
--
通讯作者：
Steven J. Smith
中科院分区：
文献类型：
--
作者：
J. Wilcoski;J. B. Gambill;Steven J. Smith
摘要：CERL设备易损性与防护程序(CEFAPP)是一种新的测试规程，它以幅频关系定义设备抵御地震和其他瞬时支撑运动的能力。幅值是发生故障时的支承运动或反应谱幅值。故障可能包括实际机械损坏、暂时功能丧失、关键位置的加速度或应变水平，或任何其他用户定义的标准。支撑动作的频率内容至关重要，因为它决定了设备响应和故障的方式(模式)。CEFAPP使用窄带随机扫描测试来确定故障的幅度、频率和模式，并将这些记录为每个故障的单个数据点。所有故障数据都被绘制出来，如果收集到足够的故障数据，则可以绘制整个频谱的置信度范围。CEFAPP通过设备的时程、场地特定频谱和设计频谱测试进行了验证。设计工程师可以在设备安装位置定义预测的运动，并将这些数据叠加到实验定义的设备容量图上，以评估设备的充分性。设备制造商可以根据CEFAPP作为设计辅助来测试他们的设备，因为测试结果定义了满足潜在需求所需的改进。
Abstract : The CERL Equipment Fragility and Protection Procedure (CEFAPP) is a new testing protocol that defines the capacity of equipment to withstand seismic and other transient support motion in terms of amplitude versus frequency. The amplitude is the support motion or response spectrum amplitude at which failure occurs. Failure may comprise actual mechanical damage, temporary loss of function, acceleration or strain levels at critical locations, or any other user-defined criteria. The frequency content of support motion is critical as it determines the manner (modes) in which equipment responds and fails. CEFAPP uses narrow-band random sweep tests to determine the amplitude, frequency, and mode of failure, and records these as single data points for each failure. All failure data are plotted, and confidence bands may be plotted across the spectrum if enough failure data are gathered. CEFAPP was validated through time history, site-specific spectra, and design spectra testing of equipment. Design engineers can define predicted motions at equipment installation locations and overlay these data onto the experimentally defined equipment capacity plots to evaluate the adequacy of equipment. Equipment manufacturers can test their equipment according to CEFAPP as a design aid, because the test results define improvements needed to withstand potential demands.