Dynamic Stress Analysis for the Optimisation of Push Scooters

项目概述：该项目旨在开发一种技术，以准确测量滑板车在实际使用中面临的负载，从而提出设计改进建议。这将通过在实际使用中测量滑板车在不同位置的应变作为时间的函数来完成。将使用各种分析模型（可能使用特征应变方法）从测量的应变中导出载荷。导出的结果将与计算（有限元）模型和控制加载条件下的测量结果进行比较，以验证模型。数据将从一系列滑板车的骑手收集和统计分析，在决定合适的设计标准，以优化滑板车设计之前，将对载荷的变化进行统计分析。拓扑优化等计算技术可能会在这一阶段使用，以帮助找到理想的几何形状。在这个项目中开发的新方法可能适用于其他运动设备，如自行车、滑板、滑雪板和滑雪板。滑板车在城市生活中无处不在，用于锻炼孩子，青少年和年轻人的特技表演，以及作为市中心通勤的一种方式。价值数百万美元的自由式（特技）滑板车行业共有40多家公司（例如Lucky scooter Parts LLC， 2019年的营业额为400万美元）。电动滑板车行业在规模上超过了这一数字，2019年的总价值为186亿美元，预计到2030年将达到419.8亿美元，复合年增长率为7.7%。电动滑板车也被视为解决气候变化问题的部分办法。关于滑板车装载的科学调查尚未发表。这样的研究为滑板车部件几何形状和设计的优化铺平了道路。该研究项目属于EPSRC连续介质力学研究领域；运用工程原理进一步了解固体力学。该研究也为其他运动器材动应力分析的研究奠定了基础。由于自由式滑板车的部件具有巨大的吸引力，研究可以作为工程科学的一个例子，吸引和激励年轻一代学习工程。由于电动滑板车被视为解决气候变化问题的潜在解决方案，因此改进它们的设计完全符合EPSRC在这一领域的目标。改进滑板车的设计也应该减少浪费，因为高质量滑板车部件的寿命应该增加。大观研究。电动滑板车市场规模，市场份额和趋势分析报告，按产品（立式，复古，折叠式），按电池（密封铅酸，镍氢，锂离子），按电压（24V, 36V, 48V, >48V），按地区和细分市场预测，2019 - 2030年（最后访问23/10/2020 https://www.grandviewresearch.com/industry-analysis/electric-scooters-market）2)。大观研究。到2030年，电动滑板车市场规模将达到419.8亿美元，复合年增长率为8.5%。（最后访问日期23/10/2020 https://www.grandviewresearch.com/press-release/global-electric-scooters-market）

Summary of the project:The project aims to develop a technique to accurately measure the loading that scooters face in real-world use and consequently suggest design improvements. This will be done by measuring the strain in the scooter at various locations as a function of time in real-world use. Various analytical models (likely using an eigenstrain approach) will be used to derive the loading from the measured strain. The derived results will be compared to both computational (finite element) models and measurements in controlled loading conditions to validate the model. Data will be collected from a range of scooter riders and statistical analysis will be performed on the variation of loading before deciding on suitable design criterion to optimise scooter design. Computational techniques such as topology optimisation will likely be used in this stage to help find the ideal geometry. The novel approaches developed in this project will likely be applicable to other sporting equipment such as bicycles, skateboards, skis and snowboards. ContextScooters are ubiquitous to urban life, used to exercise children, for stunt use by teenagers and young adults, and as a mode of inner-city commuting. The multi-million-dollar freestyle (stunt) scooter industry totals over 40 companies (e.g. Lucky Scooter Parts LLC who had a turnover of $4 million in 2019). This is surpassed in size by the electric scooter industry which totalled $18.6 billion in value in 2019 [1] and is expected to reach $41.98 billion by 2030 with a 7.7% CAGR [2]. Electric scooters are also seen to be a partial answer to concerns regarding climate change. Scientific investigation into the loading of scooters has not been published. Such research paves the way for the optimisation of scooter component geometry and design. Alignment to EPSRC's strategies and research areasThis research project falls within the EPSRC continuum mechanics research area; using principles of engineering to further knowledge in solid mechanics. The research should also pave the way for research into dynamic stress analysis of other sports equipment. As freestyle scooter components have significant appeal, research can be used as an example of engineering science to engage and excite a younger generation to study engineering. As electric scooters are seen to be a potential solution to concerns over climate change, improving their design aligns well within the scope of EPSRC's aims in this area. Improving scooter design should also reduce waste as the longevity of high-quality scooter components should increase.1. Grand View Research. Electric Scooters Market Size, Share & Trends Analysis Report By Product (Standing, Retro, Folding), By Battery (Sealed Lead Acid, NiMH, Li-Ion), By Voltage (24V, 36V, 48V, >48V), By Region, And Segment Forecasts, 2019 - 2030 (last accessed 23/10/2020 https://www.grandviewresearch.com/industry-analysis/electric-scooters-market)2. Grand View Research. Electric Scooters Market Size Worth $41.98 Billion By 2030 | CAGR 8.5%. (last accessed 23/10/2020 https://www.grandviewresearch.com/press-release/global-electric-scooters-market)