与静态偏差带来的双面可靠斜梁的和诱导形状变形
Md Nahid Hasan1,2, Sharat Paul1, Taylor E Greenwood1,3
1Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112, USA.
概括
一种静态偏移力在波激发下增强了预先曲的可比光束中的形状变形. 这项研究揭示了协同效应,扩大了适应性超材料应用的切换区域.
科学领域:
- * 固体力学 固体力学
- * 非线性动力学
- * 超材料工程 超材料工程
背景情况:
- *双梁表现出两个稳定的平衡位置,使它们适合适应性结构.
- *动态刺激可以诱导这些光束的形状变形,但控制仍然是一个挑战.
- * 了解静态偏差力的影响对于精确控制可比式系统至关重要.
研究的目的:
- * 为了研究恒定的静态偏移力对预先曲的可视梁的动态形状变化的影响.
- * 探索不同类型的振荡运动 (交换,反转,振荡,井内) 由波激发引起.
- * 确定以最小激发幅度实现状态转换的条件.
主要方法:
- * 分析了经过和激发和静态偏移力而受到预先曲的可双向光束模型.
- * 探索参数空间以分类不同的振荡运动模式.
- * 对光束的动态反应和状态切换行为的数值研究.
主要成果:
- *静态偏移力显著影响可二度波束的动态变形和振荡行为.
- * 观察到动态激发和静态偏差力之间的协同效应,扩大了切换的非碎形区域.
- * 确定了四种不同的振荡运动类别:切换,反转,振荡和井内运动.
结论:
- *静态偏移力提供了一种手段来控制和增强可二度波束的动态形状变形.
- *这些发现促进了对多稳定的机械超材料的理解,这对于适应性应用至关重要.
- * 这项研究提供了设计新型适应性结构的见解,可以更好地控制稳定状态过渡.
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