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 2 施铆顺序对测试区域CA预紧力影响（铆接顺序Ⅱ）

Tab.2 Effect of riveting sequence on CA preload in test area (Riveting sequence Ⅱ)

铆钉编号 P0/ kN P1/ kN ΔP1/ kN rs/% 铆钉编号 P0/ kN P1/ kN ΔP1/ kN rs/% FA1 340.3 331.4 8.9 2.63 FA77 335.3 322.1 13.2 3.95 FA5 339.2 329.3 9.9 2.91 FA81 331.7 319.7 12.0 3.62 FA9 366.2 347.0 19.2 5.23 FA89 328.0 317.0 11.0 3.35 FA13 332.1 315.9 16.2 4.88 FA93 339.0 323.6 15.5 4.57 FA17 346.3 320.9 14.9 4.30 FA95 341.4 330.8 10.7 3.13 FA21 337.2 331.6 14.7 4.35 FA97 332.3 320.7 11.6 3.48 FA25 337.2 318.8 18.5 5.47 FA101 330.5 318.7 11.8 3.56 FA29 339.9 323.7 16.2 4.76 FA105 345.4 334.8 10.6 3.06 FA33 329.1 311.4 17.7 5.38 FA109 338.2 328.5 9.7 2.86 FA37 338.0 317.9 20.1 5.94 FA113 324.5 315.5 9.1 2.80 FA41 329.9 311.6 18.3 5.54 FA117 336.2 326.7 9.5 2.81 FA45 336.4 321.5 14.8 4.41 FA121 330.2 322.4 7.9 2.38 FA49 325.9 309.7 16.2 4.96 FA125 345.0 338.9 6.2 1.78 FA53 338.2 324.8 13.4 3.96 FA126 346.1 340.1 6.0 1.73 FA57 332.9 316.5 16.4 4.93 FA127 340.8 333.6 7.2 2.10 FA61 337.1 320.6 16.5 4.91 FA128 343.9 — — — FA65 349.4 335.0 14.4 4.13 平均值 337.6 324.4 13.0 3.84 FA69 333.2 322.1 11.2 3.35 标准差 7.73 7.73 3.78 — FA73 340.1 328.2 11.9 3.49 变异系数 0.023 0.023 0.292 —