夹芯复合材料板动态特性影响参数分析

doi:10.19936/j.cnki.2096-8000.20210628.012

复合材料科学与工程 ›› 2021, Vol. 0 ›› Issue (6): 77-81.DOI: 10.19936/j.cnki.2096-8000.20210628.012

夹芯复合材料板动态特性影响参数分析

马家兴, 范亚萍

潍坊科技学院智能制造学院,潍坊 262700

收稿日期:2020-09-28 出版日期:2021-06-28 发布日期:2021-08-03
作者简介:马家兴(1977-),男,硕士,副教授,主要从事复合材料方面的研究,wkymjx@126.com。
基金资助:
国家自然科学基金(51705270);山东省高校设施园艺实验室资助项目(2018YY046)

PARAMETER ANALYSIS OF DYNAMIC CHARACTERISTICS OF SANDWICH COMPOSITE PLATES

MA Jia-xing, FAN Ya-ping

School of Intelligent Manufacturing, Weifang University of Science and Technology, Weifang 262700, China

Received:2020-09-28 Online:2021-06-28 Published:2021-08-03

摘要/Abstract

摘要： 首先基于基尔霍夫假设和Hamilton原理,建立了夹芯复合材料板的动力学方程,采用实例验证的方法,对比证明所推导公式的正确性。其次研究了芯层厚度与总厚度的比值和芯层剪切模量的比值等材料参数对结构动态特性的影响。固有频率和损耗因子随夹芯层厚度与总厚度的比值的变化趋势相同,都是随着比值的增大而增大。芯层剪切模量的比值对振动频率的影响很小,但损耗因子随着该比值的增大呈现明显的减小趋势。前三阶频率和损耗因子随复合材料弹性模量比值的增大而逐渐增大。

关键词: 夹芯复合材料板, 动态特性, Hamilton原理, 参数分析

Abstract: The dynamical equations of sandwich composite plates were established based on the Kirchhoff assumption and Hamilton′s principle. The example verification was used to prove the correctness of the formula. Next, the effect of material parameters on the dynamic properties, for instance the thickness ratio of sandwich structure and the ratio of shear modulus of sandwich layer, was studied. The inherent frequency and loss factor were ascent with the increase of the ratio of thickness of sandwich layer to total thickness; inherent frequency was almost constant with the increase of the ratio of shear modulus of sandwich layer, and loss factors are descent with the increase of the ratio of shear modulus of sandwich layer. The first three frequencies and loss factors gradually increase with the increasing of elastic modulus ratio.

Key words: sandwich composite plates; dynamic characteristics; Hamilton′s principle; parameter analysis

中图分类号:

TB332

马家兴, 范亚萍. 夹芯复合材料板动态特性影响参数分析[J]. 复合材料科学与工程, 2021, 0(6): 77-81.

MA Jia-xing, FAN Ya-ping. PARAMETER ANALYSIS OF DYNAMIC CHARACTERISTICS OF SANDWICH COMPOSITE PLATES[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(6): 77-81.

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夹芯复合材料板动态特性影响参数分析

PARAMETER ANALYSIS OF DYNAMIC CHARACTERISTICS OF SANDWICH COMPOSITE PLATES

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