海军航空大学学报2026，Vol.41Issue(1)：157-166,10.DOI:10.7682/j.issn.2097-1427.2026.01.006
长期海洋腐蚀环境下金属简支板振动行为退化机制
Mechanisms of Corrosion-Induced Degradation in Vibration Behavior of Metallic Simply-Supported Plates Under Prolonged Marine Exposure
摘要
Abstract
The corrosion environment has a significant impact on the dynamic characteristics of metal plate structures,posing a serious threat to structural safety and service life.An equivalent physical model of mass loss due to corrosion and structural mechanical properties is constructed,the influence laws of long-term corrosion environment on the vibra-tion characteristics of metal simply-supported plates is investigated.By equating corrosion to the changes in material elastic modulus and density properties along the thickness direction,the infiltration effect of corrosion inside the mate-rial and the residual mechanical properties of the surface corroded material are considered more finely.Based on the theory of elastic thin plate,the vibration control equation of the corroded plate is derived,and the accuracy of the nu-merical model is verified by the finite element method and the experimental results.The effects of typical regional atmo-spheric corrosion characteristics,initial corrosion rates,and structural size factors on the vibration characteristics of metal simply-supported plates are discussed.The results show that the vibration frequency of the metal plate decreases with corrosion time and is inversely correlated with the mass loss curve of corrosion;after 50 years of corrosion in a coastal industrial atmospheric environment,the fundamental frequency of the steel plate decreases by 19.09%,while the frequency of the aluminum plate decreases by only 1.05%.The method established in this study provides a theoretical basis for evaluating the vibration characteristics of metal structures serving long-term in corrosive environments and has guiding significance for engineering anti-corrosion design.关键词
腐蚀模型/金属板/振动特性/有限元分析Key words
corrosion model/metal plate/vibration characteristics/finite element analysis分类
矿业与冶金引用本文复制引用
任浩源,常汉江,袁亚,王艳艳,王岳武,严旭..长期海洋腐蚀环境下金属简支板振动行为退化机制[J].海军航空大学学报,2026,41(1):157-166,10.基金项目
国家自然科学基金(11902363) （11902363）
国家国防科技工业局技术基础科研项目(JSHS2020209A001) （JSHS2020209A001）
