形状记忆的可变刚度的影响 碳复合结构合金对机械振动的影响
Damian Markuszewski1, Mariusz Wądołowski1, Arkadiusz Krajewski2
1Faculty of Automotive and Construction Machinery Engineering, Warsaw University of Technology, 02-524 Warsaw, Poland.
Materials (Basel, Switzerland)
|January 26, 2024
概括
本研究探讨了用形状记忆合金 (SMA) 线增强的复合材料,以控制结构刚性和动力学. 实验确定了这些智能复合结构的关键机械性能和温度效应.
科学领域:
- 材料科学与工程 材料科学与工程
- 机械工程 机械工程
- 智能材料是一种智能材料.
背景情况:
- 复合材料,如碳纤维和环氧树脂,由于它们的高强度与重量比被广泛使用.
- 形状记忆合金 (SMA),如NiTiNol,提供独特的特性,如形状恢复和可调节的刚性.
- 将SMA集成到复合结构中,为高级功能提供了机会,包括主动刚性控制.
研究的目的:
- 研究新型复合结构的动态特性,其中包括形状记忆合金 (SMA) NiTiNol线.
- 评估SMA整合对结构动态的影响,重点关注刚性可控性.
- 通过实验确定关键的机械参数,如在不同温度下自然频率和刚度等.
主要方法:
- 通过将碳纤维/环氧树脂与NiTiNol SMA电线相结合,制造复合结构.
- 实验性模式分析以确定自然频率和减噪特性.
- 机械测试,以评估刚性和温度对材料性能的影响.
主要成果:
- 证明SMA集成对复合结构动态性质的显著影响.
- 通过影响SMA NiTiNol线的温度变化实现可控制的刚性.
- 自然频率和硬度的量化变化与温度和SMA激活相关.
结论:
- 碳纤维复合材料和SMA NiTiNol线的组合使得能够开发具有可调节动态性质的结构.
- 度可控性是一个关键优势,为适应性和响应性结构系统提供了潜力.
- 实验结果验证了使用这些智能复合材料以提高结构性能的可行性.
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