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3D打印等级复合材料的振动行为:制造和测试

Fazeel Khan¹, Kumar Singh¹, Justin Carter¹

¹Department of Mechanical and Manufacturing Engineering, Miami University, Oxford, OH 45056, USA.

|December 17, 2024

概括

多头3D打印使定制的复合结构具有受控的振动特性. 这项研究预测了3D打印分级零件的缓和和自然频率,使用材料特性,通过模拟和实验验证.

科学领域:

材料科学材料科学材料科学
机械工程机械工程
增材制造增材制造增材制造

背景情况:

多头3D打印允许复合结构具有各种材料特性.
选择性材料放置可实现层级和分级的几何结构,用于特定的机械和振动控制.

研究的目的:

预测3D打印分级结构的阻尼和自然频率.
通过模拟和实验数据验证预测模型.

主要方法:

利用单个材料的特性来建模复合结构.
考虑固定和可变的存储 (E') 和损失 (E′′) 模块作为温度和频率的函数.
在分级的3D打印样本上进行模态振动测试.

主要成果:

在模拟和实验结果之间观察到一种很好的匹配模式振动测试.
拟议的模型有效地预测了分级结构的动态特性.
变量存储和损失模块是温度和频率的函数.

结论:

开发的模型是设计具有特定动态特征的3D打印零件的宝贵工具.
这种方法支持为需要控制振动的应用程序创建组件,例如在旋转机器中.

关键词:

通过3D打印打印3D打印.分级材料分级材料分级材料.对振动进行分析.

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