TRC Challenge - design documents

This dataset contains all specifications to manufacture and assemble a new benchmark structure for the experimental analysis of nonlinear vibrations. The setup includes a support structure, a thin panel and two blades. The blades are used to clamp the panel at the left and right side to the support. Due to a small inclination of the relevant surfaces of the support, the panel is slightly curved in the assembled state. This curvature and the clamped-clamped boundary situation give raise to a pronounced softening-hardening behavior (considering the dependency of the panels natural frequency on the vibration level). Moreover, a friction nonlinearity is expected due to the bolted joints used to clamp the panel. Here we provide all technical drawings, 3D CAD files in *-stp.format, material specifications and a detailed documentation needed to manufacture and assemble the benchmark in a reproducible manner. It is recommended to read '<a href="https://darus.uni-stuttgart.de/file.xhtml?fileId=148576">DesignDocumentation-revD.pdf </a>' first to get an overview.

本数据集包含用于制造与装配新型基准结构的全部技术规范，该结构用于非线性振动的实验分析。该实验装置包含支撑结构、薄板以及两片夹片。两片夹片用于将薄板的左右两侧夹紧固定于支撑结构上。由于支撑结构相关表面存在微小倾角，装配完成后薄板会呈现轻微弯曲状态。这种弯曲状态以及两端固支的边界条件，会使结构呈现显著的软化-硬化特性（即薄板固有频率随振动幅值变化的依赖关系）。此外，由于用于夹紧薄板的螺栓连接结构，系统还会呈现摩擦非线性特性。本数据集提供了该基准结构可复现制造与装配所需的全部工程图纸、*.stp格式三维CAD文件、材料参数说明以及详细文档。建议优先阅读<a href="https://darus.uni-stuttgart.de/file.xhtml?fileId=148576">DesignDocumentation-revD.pdf</a>以获取整体概况。