文章摘要
王绍清,张俊玲,翟彦春,梁森.四边简支共固化复合材料阻尼结构的动力学性能研究[J].机床与液压,2018,46(24):36-41.
.Study on the dynamics performance of embedded co cured composites damping structure with four edges simply supported[J].Machine Tool & Hydraulics,2018,46(24):36-41
四边简支共固化复合材料阻尼结构的动力学性能研究
Study on the dynamics performance of embedded co cured composites damping structure with four edges simply supported
  
DOI:10.3969/j.issn.1001-3881.2018.24.006
中文关键词: 复合材料  粘弹性材料  共固化  损耗因子
英文关键词: Composite material,Viscoelastic materials, Co curing, Loss factor
基金项目:山东省高校设施园艺实验室项目(2018Y049);国家自然科学基金资助项目(51375248)
作者单位E-mail
王绍清 潍坊科技学院 山东省高校设施园艺实验室 liangsen98@mailst.xjtu.edu.cn 
张俊玲   
翟彦春   
梁森   
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中文摘要:
      嵌入式共固化复合材料阻尼结构具有阻尼性能优良、抗老化、不脱落、耐疲劳等优点,在设施农业、机床制造业、航空航天、建筑等技术领域具有广阔的应用前景。应用模态应变能法研究了共固化复合材料阻尼结构各层的应变能,并计算了结构的一阶模态国有频率和损耗因子,得到了一阶固有频率和损耗因子随阻尼层厚度变化的规律。结果表明:当薄板总厚度不变时,增加阻尼层的厚度可以使一阶固有频率减小,模态损耗因子随着阻尼层厚度的增大而增大,阻尼层较厚时,一阶固有频率和模态损耗因子对阻尼层厚度的变化不再敏感;当复合材料层厚度不变时,一阶固有频率随着阻尼层厚度的增大而减小,增加阻尼层的厚度可以使损耗因子增大,阻尼层厚度较厚时,阻尼层厚度的变化对一阶固有频率和损耗因子的影响较小;当薄板总厚度不变,较复合材料层厚度不变,阻尼层较厚时对损耗因子的影响更小。
英文摘要:
      The embedded co cured composite material damping structure has the advantages of excellent damping properties, anti aging, non shedding, fatigue resistance, etc. It has a broad application prospect in the field of agricultural facilities, machine tool manufacturing, aerospace, construction and other technical fields. The strain energy of the co cured composite damping structure is studied by modal strain energy method. The first order modal frequency and loss factor of the structure are calculated. The law of the loss factor and the first order modal frequency with the change of the viscoelastic damping layer thickness is obtained. The results show that when the total thickness of the thin plate is constant, the first order natural frequency reduces and the loss factor increases with the increase of the thickness of the damping layer. When the damping layer is thick, the first order natural frequency and loss factor is no longer sensitive to the change of the thickness of the damping layer. When the thickness of the composite layer is constant, the first order natural frequency reduces and the loss factor increases with the increase of the thickness of the damping layer. When the thickness of the damping layer is thick, the thickness of the damping layer has little effect on the first order natural frequency and modal loss factor. Compared with the constant thickness of the composite layer, when the total thickness of the thin plate is constant, the thicker damping layer has a smaller influence on the loss factor, which provides theoretical support for the design of lightweight damping composite materials.
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