环槽铆钉群铆效应及铆后预紧力松弛试验研究

刘震北,王海磊,董伟东,李亮,王琨,刘永健,刘紫豪

Experimental study on group riveting effect and post-rivet preload relaxation of ring groove rivet

Zhenbei LIU,Hailei WANG,Weidong DONG,Liang LI,Kun WANG,Yongjian LIU,Zihao LIU

表 1 环槽铆钉预紧力监测结果

Tab.1 Monitoring results of preload of ring groove rivet

铆钉编号 P'/kN P0/kN r1/% 铆钉编号 P'/kN P0/kN r1/% FA1 439.1 340.3 29.02 FA77 439.2 335.3 30.99 FA5 423.4 339.2 24.84 FA81 431.4 331.7 30.07 FA9 449.4 366.2 22.74 FA89 434.2 328.0 32.38 FA13 437.4 332.1 31.69 FA93 434.4 339.0 28.13 FA17 434.8 346.3 25.55 FA95 442.5 341.4 29.60 FA21 428.4 337.2 27.03 FA97 436.9 332.3 31.49 FA25 346.4 337.2 2.72 FA101 457.8 330.5 38.53 FA29 439.3 339.9 29.27 FA105 429.9 345.4 24.49 FA33 438.7 329.1 33.31 FA109 433.3 338.2 28.11 FA37 434.9 338.0 28.68 FA113 447.5 324.5 37.90 FA41 420.9 329.9 27.60 FA117 431.5 336.2 28.36 FA45 437.0 336.4 29.90 FA121 434.8 330.2 31.68 FA49 431.0 325.9 32.27 FA125 458.7 345.0 32.96 FA53 438.2 338.2 29.57 FA126 434.7 346.1 25.57 FA57 430.8 332.9 29.39 FA127 439.1 340.8 28.85 FA61 433.2 337.1 28.51 FA128 422.9 343.9 22.95 FA65 430.2 349.4 23.12 平均值 433.5 337.6 28.47 FA69 433.7 333.2 30.13 标准差 16.94 7.73 — FA73 438.6 340.1 28.97 变异系数 0.039 0.023 —