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	基于Tikhonov正则化方法的移动荷载识别实验研究; Experiment on Moving Load Identification Based on Tikhonov Regularization Method
	陈春苗 ; 高婧
	2015-06-15
关键词	荷载识别 简支板桥 Tikhonov正则化方法 load identification simply supported slab bridge Tikhonov regularization method
英文摘要	根据正交异性板理论和模态叠加法,推导了移动荷载作用下简支板桥的荷载识别方程。为了解决识别方程病态问题,考虑TIkHOnOV正则化方法,选择最优正则参数值,从而得到方程的正则化解。为了验证TIkHOnOV正则化方法的有效性,进行了简支板桥的移动荷载识别模型实验,通过实验确定不同速度车辆经过板桥时的应变响应历程,并将所测得数据代入识别方程求得车辆荷载信息。实验和计算结果对比表明,通过引进TIkHOnOV正则化方法可以获得识别方程的稳定解,提高识别精度,识别结果与实际小车重量吻合较好。; Based on the orthotropic plate theory and the modal superposition method,the load identification equations for simply supported slab bridges subjected to moving loads were deduced.Tikhonov regularization method was applied to solve the ill conditioned moving load identification equations,through which an optimal regularization parameter was selected to obtain the solution of regularization.In order to check the validity of Tikhonov regularization method,the moving loads identification model of a simply supported slab bridge was established in the experiment.The strain history was obtained when the model truck passed through the bridge at different speeds.Then,the measured data was substituted into the identification equations to get the load information.The calculation results indicate that the identification results are in good agreement with the actual weight of the model truck,which means that the Tikhonov regularization method is effective in obtaining a stable solution for load identification equations with improved accuracy.; 中央高校基本科研业务费项目(2013121028)
语种	zh_CN
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/108789]
专题	建筑土木－已发表论文
推荐引用方式 GB/T 7714	陈春苗,高婧. 基于Tikhonov正则化方法的移动荷载识别实验研究, Experiment on Moving Load Identification Based on Tikhonov Regularization Method[J],2015.
APA	陈春苗,&高婧.(2015).基于Tikhonov正则化方法的移动荷载识别实验研究..
MLA	陈春苗,et al."基于Tikhonov正则化方法的移动荷载识别实验研究".(2015).

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