轴向载荷、转动惯量和剪切变形对简支梁固有频率的影响  

The influence of axial load、moment of inertia and shear deformationof the natural frequency of simply supported beam

作　　者：龚善初[1] 

机构地区：[1]广东揭阳学院机电工程系,广东揭阳522000

出　　处：《河南科学》2004年第5期592-596,共5页Henan Science

基　　金：第二批新世纪广东省高等教育教学改革工程项目基金资助课题(粤教高[2002]157号)。

摘　　要：利用能量法研究了简支梁在轴向载荷作用下固有频率与轴向载荷的关系,讨论了轴向载荷、转动惯量和剪切变形对简支梁固有频率的影响,对梁的结构设计,特别是对强迫振动下的实时控制,在工程中具有一定的实用价值。The relationship between natural frequency and axial load of simply supported beam is studied using energy method, and the influence of axial load, moment of inertia and shear deformation of the natural frequency of simply supported beam is discussed, the structures design, especially the real-time controls under forced vibration of the beam have certain practical value in engineering.

关 键 词：轴向载荷 转动惯量 剪切变形 影响 简支梁 横向振动 固有频率 

分 类 号：O327[理学—一般力学与力学基础]