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- Wire Suspension System for Wind Tunnel Dynamic Testing 风洞张线支撑系统
- The planes survived the wind tunnel test intact. 这些纸飞机在测试风道中丝毫未损。
- How much is the dynamic head of BFP? 锅炉给水泵的水力压头是多少？
- In this paper, the dynamic behavior of guyed masts is investigated through model tests in a wind tunnel. 基于风洞模型试验的方法,对桅杆的风振响应进行了试验研究。
- It is not correct to think of the wind tunnel having uniform flow. 设想风洞具有均匀的气流是不正确的。
- Two double head anti symmetric airfoils have been proposed and the wind tunnel tests on their lift and drag performances have been carried out. 本文分析了双头车床控制系统的特点,提出了基于单片机构成的嵌入式控制方案,采用步进电动机实现对刀具的拖动定位,简化了控制系统结构。
- For conducting dynamic characteristics testing of a long span flexible bri dg e model inside a wind tunnel, a fast and reliable modal separation technique is proposed. 为在风洞内部进行大跨径柔性桥梁全桥模型动态试验，提出了一种快速可靠的分离试验方法。
- Wind tunnel experiments with the CAARC standard tall building model was executed to verify the proposed method with the dynamic balance technique. 采用本文方法可以克服天平方法要求结构的基阶模态必须线性且不能给出结构沿高度的荷载分布等缺点。
- Setting very low speeds in a wind tunnel is always a vexatious problem. 在风洞中调出低风速来始终是一个麻烦问题。
- Wind tunnel tests of rigid and aeroelastic model were carried out to investigate the influence of windward sudden opening on static and dynamic wind load for flat roof structures. 采用刚性模型和气动弹性模型风洞试验,研究迎风面突然开孔对平屋盖结构静动力风荷载的影响。
- It should be noted that a balance is not always required in a wind tunnel. 应该指出，天平对风洞来说并非是绝对必须的。
- The aerodynamics characteristics of this airfoil is studied in wind tunnel. 进行了翼型的低速气动力性能研究，为附面层特性研究提供了方向。 结果表明，该翼型具有较好的升阻和俯仰特性，但失速特性差。
- The wind tunnel is produced under a technical cooperation agreement with Ford Co of US. 风洞机是根据与美国福特公司的技术合作协议生产的。
- The dynamic characteristics of evaporation process for naphtha and crude oil were researched in three aspects of different wind speed, evaporation area and relative location of evaporation surface to ground in wind tunnel. 摘要从环境风速、蒸发面积和蒸发液池与地面相对位置3方面分别对石脑油和原油的蒸发动力学特性进行了风洞实验研究。
- Any flight test and wind tunnel correlation always suffers from a great number of unknowns. 在对飞行试验与风洞试验进行比较时总有大量的未知数。
- The experiments were conducted in a wind tunnel at a location 50 ft downwind from the fan. 实验是在风洞中距离风机50英尺处进行。
- The damping derivatives can only be determined experimentally in the wind tunnel or ballistic range. 阻尼导数只能用风洞或弹道试验来确定。
- In the experiment under the 20 m/s wind tunnel conditions, the wind abrasion modulus is almost zero. 在每秒20米的风洞实验中，吹蚀模数几乎为零。
- In this paper, the initial stage in application of fuzzy logic to aircraft high-angle-of attack aerodynamics using wind tunnel test data is outlined. 本文概述最初阶段利用风洞试验数据应用模糊逻辑研究飞机大攻角空气动力学的情况。
- Both types of tests have been explored in wind tunnels. 这两种形式的试验都已在风洞中进行过探索。
