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顺次及交叉加载方案下螺栓弹性交互作用规律
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Indexed by:期刊论文

Date of Publication:2011-10-30

Journal:压力容器

Included Journals:ISTIC

Volume:28

Issue:10

Page Number:1-8

ISSN No.:1001-4837

Key Words:弹性交互作用;交叉加载;顺次加载;多轮次;均匀预紧载荷

Abstract:由于螺栓之间存在弹性交互作用,采用力矩方法逐个加载螺栓难以获得均匀一致的预紧载荷.试验研究了顺次及交叉多轮加载方案下螺栓的弹性交互作用规律.螺栓采用8根M20×1.5双头螺柱,材料35CrMoA.采用应变片和应变仪实时监控螺栓载荷,采用力矩扳手加载.结果表明,在螺栓加载过程中存在两种弹性交互作用:正作用和负作用.弹性交互作用使交叉加载和顺次加载的最终载荷分布分别呈现W形和N形.分析了正作用和负作用的规律,依据规律提出了优化的加载方案,可将弹性交互作用系数方阵[A]n×n简化为三对角阵,提高了弹性交互作用系数法的实用性.

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Engineer

Gender:Male

Alma Mater:大连理工大学

Degree:Doctoral Degree

School/Department:化工学院

Discipline:Chemical Process Equipment. Safety Science and Engineering

Business Address:大连理工大学西校区H509

Contact Information:13478665105

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