When the wing area is known, the selection of aspect ratio automatically sets the span loading
The influence of span loading on climb performance and thereby the WAT (weight, altitude, temperature) constraint is clearly shown at low values of wing aspect ratio.
在展弦比数值较低时,可以明显看到翼展载荷对爬升性能以及由此引起的 在WAT (重量、飞行高度、温度)方面的限制的影响。
All of these effects are associated with the distribution of lift along the wing span (sometimes called span loading).
所有这些效应都与沿机翼展向的升力分布(有时称为展向载荷)有关。
Other results
In the case of units subject to bending loads the test pieces shall be supported at full span and a loading equivalent to 1.25 times the sum of the live and dead loads which were assumed in the design shall be maintained for one hour without the appearance of any signs of distress.
如果这些构件将承受弯曲载荷,应间隔一定的距离对测试的构件进行支撑,保持1.25倍的设计中假设的活载和恒载一个小时,应没有显示任何变异的迹象。
The two-stage damage assessment method for long-span bridges is proposed based on the combination of structural dynamic loading test and wavelet analysis.
将结构动载测试与小波分析相结合提出了适用于大跨桥梁结构的两阶段损伤诊断方法。
By test-loading of model of the tower-top hollow section model for Lan-cang River long-span bridge in Jing-hong, adequacy of prestressed loop stirrup design is testified.
The aspect ratio of the bars and span of the bars between supports shall be determined by the Contractor to suit his design for structural support and loading requirements, bracing between bars, and avoidance of vibration, with the following considerations and specifications to be used.
栅条的长宽比及支座之间的栅条跨距,由承包商采用下述注意事项与技术要求确定,以适用其结构支持、负载要求与栅条之间支架的设计,避免振动。
The loading of a tubular busbar is equivalent to that of a large-span beam, and the stress on the cross -section is mainly the tensile stress of the dead weight bending moment with much deflection.
管型母线受力状况相当于大跨度的梁,截面上的应力主要是自重弯矩的拉应力,挠度比较大。
According to different mechanisms, there exist several types of resonance, including the bridge resonance induced the periodical actions of moving load series of the weights, centrifugal forces and lateral winds of vehicles, the bridge resonance induced the loading rates of moving load series of vehicles, the bridge resonance induced the periodical loading of train vehicles excited rail irregularities, wheel flats and hunting movements, and the vehicle resonance induced periodical actions of the regular arrangement of bridge spans and their deflections.
根据发生机理的不同,车桥系统可能发生几种不同形式的共振,包括由车辆重量、离心力、横向平均风荷载等形成移动荷载列的周期性动力作用引起的桥梁共振,由移动荷载列加载速率引起的桥梁共振,由轨道不平顺、车轮扁疤、轮对蛇行等周期性加载引起的桥梁共振;由桥跨的规则性排列及其挠度的影响,对移动车辆形成周期性动力作用使车辆出现的共振。
With light weight, simple structure, easy installation and low price, RB series of pot bearings can offer great vertical loading capacity and horizontal displacement capacity, compared with other products, RB pot bearings are ideal choice for large span bridge. The load bearing capacity is from 0.8 to 60MN.
产品具有承载能力大、水平位移大、移动灵活等特点,与同类其它橡胶支座相比,具有重量轻、结构紧凑、构造简单、建筑高度低、加工制造方便、节省钢材、造价低廉等优点,是大跨径桥梁使用的理想选择。本系列橡胶支座承载能力从0.8-60MN,能满足大型桥梁建造的要求。