摘要
H型钢辊式矫直机在辊压腹板时使翼缘产生塑性变形以达到矫直目的.为了避免矫直过程中出现矫直缺陷,通过建立适当的矫直力学模型,求出了H型钢九辊矫直的压弯挠度与弯矩、矫直力的解析关系,确定了生产中调节矫直辊压弯挠度来保证各辊处的弯矩、矫直力等力能参数的范围.
Aiming at H-beam straightening, the plastical deformation of H-beam flange should be occurred when the rollers pressed the web plate. In order to avoid flaws in the process of H-beam straightening, an adequate mechanical model was established and the relations between bending moments, forces and bending deflections of the H-beam in nine-roller straightening were deduced. The range of the technological parameters such as forces and bending moments under each straightening roller was determined by adjusting the bending deflections in practice.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2004年第5期542-544,共3页
Journal of University of Science and Technology Beijing
基金
唐山市机电重点实验室基金资助项目(No.04360802B-4)
关键词
H型钢
辊式矫直
力能参数
压弯挠度
Bending (deformation)
Bending moments
Deflection (structures)
Mathematical models
Straightening