AI 中文总结
研究以大豆为样本，通过悬臂系统进行静态和动态实验测量及数值模态分析，测量植物机械刚度。结果显示去除枝叶后静态与动态测试EI值吻合良好，附着叶片附加质量有复杂动态作用，该方法为评估植物机械性能提供实用现场途径。
AI 中文摘要
本文评估了一种悬臂系统作为测量植物机械刚度（弯曲刚度EI或杨氏模量E）的简单方法。以大豆为测试样本（其E值鲜有报道），进行了静态和动态实验测量以及数值模态分析。结果表明，去除枝叶后，静态和动态测试的EI值吻合良好，前提是茎的响应均匀。然而，附着叶片的附加质量会导致复杂的动态相互作用，通过实验和数值方法进行了分析。最终，研究结果表明悬臂力-挠度测量提供了一种实用的现场方法，有助于制定经济可靠的植物机械性能评估标准。
英文摘要
This paper evaluates a cantilever system as a simple method for measuring the mechanical rigidity (bending rigidity EI or Young's modulus E) of plants. Using soybeans as a test sample -- whose E values have rarely been reported -- we conducted static and dynamic experimental measurements alongside numerical modal analysis. Results showed good agreement in EI values between the static and dynamic tests when branches and leaves were removed, provided the stem responded uniformly. However, the added mass of attached foliage causes complex dynamic interactions, which we analyze through both experimental and numerical approaches. Ultimately, our findings suggest that cantilever force-deflection measurements provide a practical, on-site approach, contributing to the development of an affordable and reliable standard for estimating plant mechanical properties.
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