NATURAL FREQUENCY OF COMPONENT UNDER INFLUENCE OF WELDING RESIDUAL STRESS

来源期刊：中国有色金属学报(英文版)1996年第1期

论文作者：Gao Yongyi Lin Lichuan

文章页码：135 - 140

Key words：mathematical model ; residual stress ; natural frequency ;welding ; quadrate thin plate

Abstract: According to the distribution feature of welding residual stress on plate with weldingseam along axis，a mathematical model of the welding residual stress is established. A fotmula of natu-de-- alltheral frequency of four boundary simply-supported quadrate thin plate with welding residual stress isveloped. Some conclusions have been obtained. 'THey are:(1)if there is welding residual stress all natural frequencies of component are in increase，( 2 ) change of high ranknatural frequency under the influence ofresidual stress is larger ihaa that of low rank natural frequency. and the higher the rank number is，the larger the absolute amount of change of natural frequency is.