Question

(求助)英文翻译

帮忙翻译一些英文（英译汉），翻译好的追加分！！！
From 1994 to 1997 internal research grants from Los Alamos National Laboratory’s Laboratory Direct Research and Development (LDRD) office were used to fund an effort aimed at studying global vibration-based damage detection methods. To support this work, several field tests of the Alamosa Canyon Bridge have been performed to study various aspects of applying vibration–based damage detection methods to a real world in situ structure. This report summarizes the data that has been collected from the various vibration tests performed on the Alamosa Canyon Bridge, analyses of these data, and the results that have been obtained.
Initially, it was the investigators’ intent to introduce various types of damage into this bridge and study several vibration-based damage detection methods. The feasibility of continuously monitoring such a structure for the onset of damage was also going to be studied. However, the restrictions that the damage must be relatively benign or repairable made it difficult to take the damage identification portion of the study to completion. Subsequently, this study focused on quantifying the variability in identified modal parameters caused by sources other than damage.These sources include variability in testing procedures, variability in test conditions, and environmental variability. These variabilities must be understood and their influence on identified modal properties quantified before vibration-based damage detection can be applied with unambiguous results. Quantifying the variability in the identified modal parameters led to the development of statistical analysis procedures that can be applied to the experimental modal analysis results. It is the authors’ opinion that these statistical analysis procedures represent one of the major contributions of these studies to the vibration-based damage detection field. Another significant contribution that came from this portion of the study was the extension of a strain-energy-based damage detection method originally developed for structures that exhibit beam-bending response to structures that exhibit plate-like bending or bending in two directions.
In addition, based on lessons learned from the Alamosa Canyon Bridge test, data from the I-40 Bridge tests have been re-analyzed using the statistical analysis procedures developed as part of this study. The application of these statistical procedures to the I-40 Bridge test results gives particular insight into how statistical analysis can be used to enhance the vibration-based damage detection process. Finally, data from the Alamosa Canyon and I-40 Bridge tests along with all reports and papers related to these studies have been made available to other researchers at the following site: http://ext.lanl.gov/projects/damage_id/.

Answer 1

从1994年到1997年的内部研究基金由美国洛斯阿拉莫斯国家实验室的实验室研究和开发LDRD(直接)办公室被用于资助一项旨在研究努力下损害全球的检测方法。支持这项工作,几场考试的Alamosa峡谷大桥已进行学习各方面的应用方法下损伤识别真正的世界原位结构。这份报告总结的数据收集到的各种振动试验Alamosa峡谷桥梁的特点,分析了这些数据,结果,得出了相应的结论。
最初,它被调查者的意图来介绍各种类型的伤害到这座桥,学习几下损伤检测方法。连续监测的可行性等结构的破坏也进行了研究。然而,这些约束,必须相对良性或维修很难把损伤识别的研究的一部分。随后,该研究中应用模态参数识别变异引起以外伤害这些资源包括变异性检测程序,在试验条件下,与环境的变化。这些variabilities必须明白,他们的影响下模态性能定量确定之前,可用于检测和明确的结果。量化模态参数识别的变异性发育的统计分析程序,可以应用于实验模态分析结果。这是作者的观点,这些统计分析程序的一个主要的贡献表示这些研究领域的状态下损伤诊断。另一个重要的贡献,并从该研究strain-energy-based扩张的损伤检测方法,对结构的最初的反应,beam-bending展览展示及结构弯曲或弯曲的两个方向。
此外,基于经验教训的Alamosa峡谷桥梁检测,所得的数据I-40桥测试被re-analyzed开发利用统计分析程序的一部分。这些统计数据的应用程序I-40桥测试结果给特定的了解统计分析可以用来提高下损伤检测过程。最后,数据来自Alamosa峡谷和I-40桥测试所有的报告和文件有关这些研究已经取得其他研究者在下列地点http://ext.lanl.gov/projects/damage_id/.

Answer 2

从1994年到1997年美国洛斯阿拉莫斯国家实验室的研究和开发实验室直接（LDRD）办事处内部研究赠款，用于资助在研究全球基于振动的损伤检测方法为目标的努力。为了支持这项工作，通过阿拉莫萨峡谷大桥几次实地试验已完成的研究应用原位结构振动的损伤检测方法，以一个现实世界的各个方面。这份报告总结了已经从各种振动的阿拉莫萨峡谷大桥，对这些数据进行分析测试，收集数据，以及已经取得的成果。
最初，它是研究者的意图向本桥梁和研究的几个振动的损伤检测方法不同类型的损害。这样的连续监测，为损害发病结构的可行性，也将进行研究。然而，限制损害必须相对良性或修，难以采取的损伤识别研究的部分完成。随后，本研究在量化源比damage.These来源包括测试程序中变异而引致的其他重点模态参数变异，变异性的测试条件和环境变化。这些变异必须被理解，他们对以前确定的振动模态的损伤检测性能的影响可以量化与明确的结果应用。在量化导致了统计分析，可应用于实验模态分析结果所确定的程序开发模式参数的变异性。这是作者的意见，这些统计分析程序，代表了这些研究对振动的损伤检测领域的重大贡献之一。另一个重要的贡献，从这个部分来研究，是一个应变能源为基础的损伤检测方法及扩展展览原定于结构梁弯曲响应结构呈现片状弯曲或弯曲在两个方向发展。
此外，根据从阿拉莫萨峡谷大桥试验的经验教训，从数据的I - 40大桥试验已重新分析使用统计分析，这项研究的一部分开发的程序。这些统计程序申请到I - 40大桥测试结果的统计分析研究如何使可用于提高基于振动的损伤检测过程中独特的洞察力。最后，从阿拉莫萨峡谷数据和I - 40大桥以及所有相关的这些报告和研究论文试验已提供给其他研究人员在下列网站