Investigation of array-derived rotation in TAIPEI 101
Investigation of array-derived rotation in TAIPEI 101
复制标题
台北 101 中阵列衍生旋转的研究
DOI：
10.1007/s10950-012-9306-7
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发表时间：
2012
影响因子：
1.6
通讯作者：
Chun
中科院分区：
文献类型：
--
作者：
Chin;Wen;Han;Bor‐Shouh Huang;C. Ku;Chun
我们研究了由平移地震仪阵列测量得到的旋转运动（以下称为阵列衍生旋转（ADR）），并将其与市售点旋转传感器（eentec™ R-1™）的测量结果进行比较。我们着重讨论了阵列问题的两个方面：（1）计算ADR井的必要条件和（2）阵列配置对结果的影响。我们的数据集由位于台湾台北的台北101大楼中的Kinemetrics™ EpiSensor™加速度计阵列和两个R-1™旋转传感器记录的平移加速度和旋转速率组成。我们的结果表明：（1）阵列配置影响ADR关于水平面中正交分量的准确性，（2）两个点旋转测量（两个R-1™）之间的相干性可以确定可用于计算ADR的平移的最大频率，以及（3）R-1™的性能是足够的，至少在0.12 Hz以上（周期短于8 s）。我们还讨论了从相同的数组导出应变。
We investigate rotational motions derived from measurements by arrays of translational seismometers—hereafter called array-derived rotations (ADRs)—and compare these to measurements made by a commercially available point rotation sensor (eentec™ R-1™). We focus on two aspects of the array problem: (1) the requisite conditions for calculating an ADR well and (2) the effect of array configuration on the result. Our data set consists of translational accelerations and rotation rates recorded by an array of Kinemetrics™ EpiSensor™ accelerometers and two R-1™ rotational sensors in the TAIPEI 101 building in Taipei, Taiwan. Our results indicate that (1) array configuration affects the accuracy of ADRs about orthogonal components in horizontal plane, (2) coherence between two point rotation measurements (two R-1™) can determine the maximum frequency of translations viably used for the calculating ADRs, and (3) the performance of the R-1™ is adequate, at least above a frequency of 0.12 Hz (periods shorter than 8 s). We also discuss deriving strain from the same array.