分离双扁平箱梁气动力干扰效应研究
发布时间:2018-01-10 11:20
本文关键词:分离双扁平箱梁气动力干扰效应研究 出处:《工程力学》2017年S1期 论文类型:期刊论文
更多相关文章: 分离双扁平箱梁 风洞试验 气动力系数 干扰效应 间距
【摘要】:通过节段模型风洞试验研究了分离双扁平箱梁气动力的干扰效应,得到了气动力系数干扰因子随间距的变化曲线。研究结果表明:上游箱梁阻力系数的干扰效应不明显,下游箱梁阻力系数的干扰效应在D/B≥2(D/B为双箱梁的净间距与单幅箱梁宽之比)时基本可以忽略,在D/B2时为减小效应,间距越小,减小效应越显著;下游箱梁升力系数的干扰效应不明显,上游箱梁升力系数的干扰效应在D/B≥2时基本可以忽略,在D/B2时为减小效应。
[Abstract]:The aerodynamic interference effect of separated double flat box girder is studied by wind tunnel test with segmental model. The variation curve of aerodynamic coefficient disturbance factor with distance is obtained. The results show that the interference effect of upstream box girder resistance coefficient is not obvious. The interference effect of the downstream box girder resistance coefficient can be neglected when D / B 鈮,
本文编号:1405069
本文链接:https://www.wllwen.com/kejilunwen/daoluqiaoliang/1405069.html