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熔丝加工成型薄板的动力学特性及响应

Journal of Northeastern University(Natural Science)(2020)

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Abstract
通过熔丝加工成型(fused filament fabrication,FFF)理论与实验相结合,研究了悬臂边界条件下FFF薄板的固有特性和振动响应.首先,针对FFF薄板的分层和正交各向异性等特点,基于正交多项式法对其进行理论建模.然后,通过Ritz法获取FFF薄板的固有特性,再利用频域振动方程解析研究薄板内任意一点的振动响应.最后,以聚乳酸(PLA)FFF薄板为例,实验研究了其固有特性和动态响应,以分析验证理论模型的正确性.结果表明:本文建立的FFF薄板理论模型,能够准确预测出薄板的固有特性和动态响应结果,理论模型可靠.
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fabrication,plates
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