基于的SMA复合减震器的刚性和化特征与超弹性SMA构成模型,考虑到负载率
Yizhe Huang1, Huizhen Zhang1, Qiyuan Fan1
1Hubei Key Laboratory of Modern Manufacturing Quality Engineering, School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China.
Materials (Basel, Switzerland)
|August 29, 2024
概括
形状记忆合金 (SMAs) 通过调整刚性和阻尼来提高车辆的舒适性. 这项研究引入了一种新的SMA模型和复合结构,改善了各种负载率的振动降低,以提高行驶质量.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 汽车工程 汽车工程
背景情况:
- 传统的式减震器具有固定的特性,限制了适应不断变化的负载和道路条件的适应性,从而影响车辆的驾驶舒适性.
- 形状记忆合金 (SMAs) 提供可调节的刚性和阻尼性能,使它们成为先进的振动控制的有希望的产品.
- 现有的SMA构成模型并不能完全捕捉不同负载速率对其机械行为的影响.
研究的目的:
- 为SMAs提出一个增强的超弹性构成模型,该模型包含不同负载率的影响.
- 开发和分析一种创新的循环性基于的SMA复合材料减振结构.
- 为了研究复合式阻尼器在各种负载率和波激发下的刚性和阻尼特性.
主要方法:
- 在Auricchio构成模型的基础上,开发了一种增强的SMA超弹性模型,以考虑负载率依赖.
- 创建了一个基于的圆形SMA复合材料减振结构的参数化模型.
- 用有限元模拟来分析复合式阻尼器在动态条件下的刚性和阻尼性能.
主要成果:
- 改进的SMA构成模型成功地阐明了负载速率对SMA刚性和阻尼的影响.
- 基于的圆形SMA复合结构表现出可调节的刚性和阻尼性能.
- 模拟结果显示,复合式减震器在一系列负载率和波激发下显著改善了减振能力.
结论:
- 提议的增强的SMA构成模型提供了更准确的SMA在动态负载下的表现.
- 开发的SMA复合结构为提高车辆驾驶舒适度提供了新且有效的解决方案.
- 这项研究为汽车振动控制中的实际工程应用提供了巨大的潜力.
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