1) lateral buffeting response
侧向抖振响应
1.
The formulae including both background and resonant response are given, and detailed lateral buffeting response analysis of Qingzhou cable stayed bridge over Min river are presented,in which all the effects including self excited aerodynamic forces, aerodynamic admittance and background response are taken into account.
对福州市青州路闽江结合梁斜拉桥主梁侧向抖振响应进行了较为详细的分析 ,较全面地考虑了气动导纳、自激气动力和背景响应的影响 ,为对未考虑背景响应的抖振分析结果进行修正 ,定义了背景响应修正系数并给出了计算公式 ,计算了闽江斜拉桥的侧向抖振响应 ,与未考虑背景响应影响的有限元分析结果进行了对比 ,对侧向抖振位移响应以及背景响应比例进行了参数分析。
2) buffeting response
抖振响应
1.
Field measurement on buffeting response of Runyang Suspension Bridge under typhoon Matsa;
台风“麦莎”作用下润扬悬索桥抖振响应实测研究
2.
Time-domain analysis on buffeting response of long span bridges under oblique winds(I): analysis methods
斜风作用下大跨度桥梁抖振响应时域分析(I):分析方法
3.
Time-domain analysis on buffeting response of long span bridge under oblique winds(II): field measurement validation
斜风作用下大跨度桥梁抖振响应时域分析(II):现场实测验证
4) shaking response
抖动响应
1.
With the finite element technology, the shaking response of a cellphone can be simulated before manufacturing, and the flaws in design can be known.
采用有限元技术对手机进行抖动响应仿真试验分析,能够在实物样机制出之前有效地发现设计缺陷。
5) gear walking
纵向抖振
1.
Chinese aircraft engineers are now much interested in understanding better the longitudinal nonlinear buffet of main landing gear (also called gear walking) during aircraft taxiing And braking on the runway.
讨论了缓冲器支柱结构设计参数对纵向抖振的影响,提出了若干可供实际设计参考使用的建议。
补充资料:抖振
抖振 buffeting 边界层分离或湍流激起结构或部分结构的不规则振动 。激振力几乎不受振动本身的影响。主要实例为飞机尾翼的抖振。当飞机作跨声速飞行时,机翼表面有局部超声速区,该区以激波结束。激波与翼面上的边界层有强烈的相互作用 ,当激波强度足够大时,导致边界层分离。分离气流很不稳定,当其流向下游冲击尾翼时,就使尾翼发生抖振。发生抖振的飞行马赫数同翼剖面的形状和迎角有关。当自由流速达到超声速时,激波移至后缘,抖振消失。此外,飞机作低速大迎角飞行时,机翼表面及翼身结合处的边界层严重分离,挟带大量混乱涡的分离气流冲击尾翼同样引起抖振。抖振严重时,飞机有可能在空中解体。 |
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参考词条