粘弹性阻尼层叶片耗损特性分析研究  

Study on the Wastage Characteristics of wind Turbine Blade With Visclelatic Damping Layers

作　　者：张仁峰[1,2] 徐玉秀[1,2] 段守则 杨文平[3] 

机构地区：[1]天津工业大学机械工程学院,天津300387 [2]天津工业大学天津市现代机电装备技术重点实验室,天津300387 [3]天津职业技术师范大学,天津300222

出　　处：《机械设计与制造》2015年第1期52-55,共4页Machinery Design & Manufacture

基　　金：国家重大科技成果转化项目(2060403);国家自然青年基金项目(11102134);天津市自然科学基金重点项目(10JCZDJC23400)

摘　　要：通过有限元软件建立2MW风力机复合材料叶片模型,通过固有频率和静强度分析验证模型合理性,并确定动态薄弱区域。对粘弹性阻尼层叶片进行谐响应分析,基于应变能变化率方法建立耗损特性模型,分析了粘弹性阻尼层的厚度、模量以及叶片损伤对结构耗损特性的影响。研究结果表明:粘弹性阻尼层厚度对叶片耗损特性有重要影响;粘弹性阻尼层对叶片损伤有一定的修复能力,能够抵抗叶片损伤、延长使用寿命。这将为粘弹性阻尼层叶片在工程应用中提供理论依据和支持。Building 2MW wind turbine blade model of composite materials by finite element software,the reasonability of model is checked by natural frequency and analysis of static strength,and the dynamic weak area is confirmed A new way describing wastage characteristics based on the rate strain energy change is advanced by harmonic response analysis of wind turbine blade with visclelatic damping layers.Then the responses of blade wastage characteristics with different thickness of layers,different modulus of layers and local damage are obtained.The results indicate that the thickness of visclelatic damping layers has great impact on the wastage characteristics of blade.Visclelatic damping layers not only has certain ability to repair blade damage,but also has some ability to resist blade damage and extend service life of it.It provides some theoretical basis and support for blade with damping layers in the engineering application.

关 键 词：粘弹性阻尼层 叶片 应变能响应特性 耗损特性 

分 类 号：TH16[机械工程—机械制造及自动化] TB33[一般工业技术—材料科学与工程]