发现一类看似能动却实际僵硬的连杆机构，挑战传统运动性判断标准。
Hypo-paradoxical Linkages: Linkages That Should Move-But Don't
- 基于切比雪夫-格鲁布勒-库茨巴赫准则，识别出表面移动实则刚性的连杆结构
- 揭示了本特机制意外正自由度的现象，与新发现的反悖论现象形成对照
- 适合机械设计、机构学研究者阅读，理解运动性判断的边界条件
尽管悖论连杆因违反切比雪夫-格鲁布勒-库茨巴赫准则而表现出意外的运动性，我们发现了一类相反现象：某些连杆结构根据同一准则看似具有运动性，实际上却是刚性的。我们将这类结构称为反悖论连杆，并进一步分析和演示其行为特征。同时，利用相同工具解释了本特机制中出现的意外正自由度现象。
原文摘要 · Abstract (English)
While paradoxical linkages famously violate the Chebyshev-Grubler-Kutzbach criterion by exhibiting unexpected mobility, we identify an opposing phenomenon: a class of linkages that appear mobile according to the same criterion, yet are in fact rigid. We refer to these as hypo-paradoxical linkages, and proceed to analyze and illustrate their behavior. We use the same tools to further explain the unexpected positive mobility of Bennet mechanism.
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