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- The variation pattern between flutter critical wind speed of bridge with flat box deck and wind yaw angle is significantly affected by wind attack angle. 扁平箱形截面桥梁的颤振临界风速与风偏角的关系明显地受到风攻角的影响。
- The distances between the twin decks and wind attack angles were changed during the wind tunnel test to study the effects on aerodynamic interferences of aerostatic coefficients of twin decks. 针对大跨度双幅桥面桥梁三分力系数的气动干扰问题,采用风洞试验方法对某在建大跨度双幅桥面桥梁的气动干扰效应进行研究。
- wind attack angle 颤振临界风速
- However, in the case of non-zero attack angle, the flat box deck becomes bluff, the variation of its flutter critical wind speed is accordingly undulant as the wind yaw angle increases, and the lowest value will occur generally under skew wind. 而对于非0°风攻角的情况，扁平箱形断面的流线性变差，随着风偏角的增加其颤振临界风速呈起伏变化，最低值一般在斜风的情况下出现，此时，传统的平均风分解方法不再适用。
- The report takes account into the influence of foreshore and shallow foreshore, roughness, slope, berm, wave attack angle, vertical wall and so on. 报告给出了复杂断面上波浪爬高和越浪量的计算公式，计算中考虑了前滩、边坡糙率、边坡坡度、平台、波浪入射角以及竖墙等因素的影响。
- On basis of the modeling results, the effects of Mach number, attack angle and ramp angle on the inlet performance are analyzed. 根据此数学模型，分析了攻角和进口气流马赫数对进气道性能的影响，同时给出了斜板对进气道性能的影响。
- The results show that the abrasion of coatings was influenced by many factors, such as attack angle, impact speed, and abradant dosage etc. 结果表明 :涂层的冲蚀磨损受到攻角、冲速、磨料量等多种因素的影响。
- Being the nonlinear function of attack angle, the hydrodynamic forces acting upon the submersible are determined by a towing tank test. 作用于潜水器上的水动力系攻角的非线性函数，可用拖曳水池试验加以测定。
- Wind Vortex(?): Launches a wind attack and simultaneously reduces enemy's resistance against wind, moment speed, and casting speed as well as draining their MP for a period of time. 风漩涡：风属性魔法技能。附带水之陷落以及降低对方移动速度，施法速度并且持续减mp一段时间。
- Skillful move pace can help playerrs get favorable distance and attack angle, break away from opponent's attack range and destroy opponent's attack attempt. 熟练的掌握步法技术就可以争得有利的击打角度和距离,可以有效地摆脱对手的击打范围,破坏对手攻势。
- To reduce profile loss and attack angle, rear-loaded profile and new stator blading method are applied to stators in 200MW steam turbine mid-pressure cylinder. 针对原200MW汽轮机中压缸静叶叶型损失偏大,动静匹配不佳造成攻角过大的问题,采用后部加载叶型并选用新的造型方法对静叶进行了技术改造。
- The wind was whispering in the trees. 一阵风穿过树林沙沙作响。
- The wind whirled the dead leaves about. 风吹得枯叶在四处回旋。
- The boat heeled over in a strong wind. 船在强风吹袭下倾侧了。
- The shutters thumped the wall in the wind. 在风中百叶窗砰砰地碰在墙上。
- The resonance phenomena do not occur when the oscillation frequency is less than 78.The yawing can apparently attenuate the angular displacement of both the tail and the attack angle of tail fin. 鱼体和尾鳍推进机构质量比小于78,没有出现共振现象; 艏摇的存在会明显的衰减尾柄主臂和尾鳍攻角的角位移。
- In this paper, the optimization problem of reentry trajectory and aerodynamic heating history of the space shuttle has been discussed using the modern control theory by selecting the attack angle and the bank angle as control variables. 本文应用现代控制理论研究了航天飞行器三维最优再入轨道和与轨道参数密切相关的气动加热过程。
- The three-dimensional (3D) Euler equations are applied to the study of numerical simulation of chemical non-equilibrium oblique detonation wave standing on an accelerating projectile with attack angle. 摘要采用三维非定常化学反应控制方程组对驻定在带攻角高速飞行弹丸上的斜爆轰波流场进行了数值模拟。
- Based on the impulse theorem law, the relationship between the supercavity axis deformation which caused by attack angle of cavitator and the distance along cavity axis from cavitator is analyzed. 为了满足水下高速超空化航行体运动平衡性和稳定性要求,必须采用非对称超空泡流动模式,采用具有非零攻角的空化器是实现该要求的一种重要策略。
- She was like a narcissus trembling in the wind. 她像一株在风中摇动的水仙。
