Data underlying the publication: Extreme-oriented sensitivity analysis using sparse polynomial chaos expansion. Application to train–track–bridge systems

The data and code files presented here are developed as part of Yue Shang's PhD Thesis project and are associated with the following publication. They are being made publicly available as supplementary data for the thesis of Yue Shang for review and reproduction purposes.<br>Shang, Y., Nogal, M., Teixeira, R., &amp; Wolfert, A. R. M. (2024). Extreme-oriented sensitivity analysis using sparse polynomial chaos expansion. Application to train–track–bridge systems. <em>Reliability Engineering &amp; System Safety, 243,</em> 109818.<br>Furthermore, the methodology proposed in this work extends upon previous research (as shown below) by integrating limit state design considerations into the formulation of extreme-based engineering problems. Therefore, the code for this project is built upon the foundation of the following work.<br>Nogal, M., &amp; Nogal, A. (2021). Sensitivity method for extreme-based engineering problems. <em>Reliability Engineering &amp; System Safety, 216</em>, 107997.<br>For case studies used in this project, a finite element model to simulate train-track-bridge dynamic interaction was employed, which is licensed under the [GNU General Public License v3.0](https://www.gnu.org/licenses/gpl-3.0.en.html). The details are referred to the following publication. <br>Cantero, D. (2022). TTB-2D: Train–Track–Bridge interaction simulation tool for Matlab. <em>SoftwareX, 20,</em> 101253.<br>Further details can be found in the attached README file.

本文所提供的数据与代码文件，均为尚悦（Yue Shang）博士学位论文研究项目的成果，并与下述发表论文相关。本数据集作为尚悦博士学位论文的补充研究数据公开发布，以供同行评审与研究复现使用。<br>尚悦, Nogal M, Teixeira R, 等. (2024). 基于稀疏多项式混沌展开（sparse polynomial chaos expansion）的极端值导向灵敏度分析：在列车-轨道-桥梁系统中的应用[J]. 可靠性工程与系统安全, 243, 109818.<br>此外，本研究提出的方法在已有研究（如下文所述）的基础上进行了拓展，将极限状态设计（limit state design）考量融入基于极端值的工程问题建模流程中。因此，本项目的代码基于下述研究成果构建。<br>Nogal M, Nogal A. (2021). 面向极端值工程问题的灵敏度分析方法[J]. 可靠性工程与系统安全, 216, 107997.<br>本项目的案例研究采用了用于模拟列车-轨道-桥梁动态相互作用的有限元模型（finite element model），该模型采用[GNU通用公共许可证v3.0（GNU General Public License v3.0）](https://www.gnu.org/licenses/gpl-3.0.en.html)授权。相关细节可参阅下述发表论文。<br>Cantero D. (2022). TTB-2D：适用于Matlab的列车-轨道-桥梁相互作用仿真工具[J]. 软件X, 20, 101253.<br>更多细节可参阅附件中的README文件。