Dataset of Drop-Tower Experiments with Various Ice Shapes Impacting a Rigid Structure

Understanding how various ice shapes affect loads experienced by a ship hull or structure is crucial. Therefore, ice-structure interaction with a focus on the shape of the impacting ice was investigated. In the study drop tower experiments were conducted at the Institute of Ship Structural Design and Analysis of the Hamburg University of Technology to investigate ice impacts on a small scale. Ice specimens with diverse shapes (cylinder, cone, dome, wedge, ellipse, and other variations) were subjected to single impacts against a steel plate. Analysis revealed two main failure modes based on ice geometry, showcasing significant differences in load magnitude. Correlations between contact area, cone angle, specimen length to peak force, pressure, and energy were observed. The experimental setup, test matrix including the dimensions of the tested ice shapes and the data analysis are soon to be published. The experimental data are provided here. The data include the summed up force signal of the load cells and the displacement signal of the drop hammer. The data have been cropped to focus on the relevant portion around the impact load peak. Each file contains a single test run encompassing the time signal in seconds, force signal in kilo Newtons, and displacement signal in millimeters.

明晰不同冰体形态对船体或结构所受载荷的影响至关重要。为此，本研究聚焦撞击冰体的形态，开展冰-结构相互作用（ice-structure interaction）相关研究。
本研究于汉堡工业大学（Hamburg University of Technology）船舶结构设计与分析研究所开展小尺度冰体撞击落锤实验（drop tower experiments）。实验中，将圆柱、圆锥、圆穹、楔形体、椭圆体及其他变体等多种形态的冰试样以单次撞击方式作用于钢板。
分析结果显示，基于冰体几何形态可划分两类主要失效模式，二者的载荷量级存在显著差异。研究同时观测到接触面积、锥角、试样长度与峰值力、压强及能量之间的相关性。
本实验装置、包含被测冰样尺寸在内的测试矩阵，以及数据分析内容即将正式发表。本研究的相关实验数据在此公开提供。数据包含测力传感器（load cells）的总力信号与落锤（drop hammer）的位移信号，且已裁剪至撞击载荷峰值附近的有效时段。每份文件对应单次测试，包含以秒为单位的时间信号、以千牛（kilo Newtons，kN）为单位的力信号，以及以毫米（millimeters，mm）为单位的位移信号。