1) critical velocity
临界风速
1.
Numerical simulation and analysis of smoke characteristics and critical velocity in underground railway tunnel while fire;
地铁隧道火灾烟气特性与临界风速的数值模拟分析
2.
Furthermore, a critical velocity of air flow expression for transition from upward smoldering to flaming combustion is constructed.
根据在此条件下的阴燃特点,建立了稳定阴燃时实验材料内部的气流速度模型和阴燃向有焰火转化时的临界风速判定表达式。
3.
The model for calculating the critical velocity in a tunnel cross-passage is established on the basis of the critical Froude theory.
从临界Froude数理论出发建立了计算联络通道临界风速的模型。
2) critical wind speed
临界风速
1.
Based on vibration theory,this paper presents concise methods for critical wind speed,Vcr,at which tube members start the aeolian vibration,and resonance force calculations,and analyzes the influences of resonant bending and fatigue stress on safety of web and auxiliary members that are subject to the aeolian vibration.
文章根据振动理论给出微风振动钢管构件的起振临界风速Vcr和共振力的简明计算方法,分析了共振产生的弯曲和疲劳应力对易发生微风振动的杆塔斜材和辅材结构安全性的影响。
2.
The three-series solution is taken up to the nonlinear differential equation of the galloping movement caused by the cross wind force acting on a high-rise structure, thus giving a reduced 3D expression in terms of steady-state response and critical wind speed.
应用三级数法求解横风向的弛振的非线性运动微分方程,得到了三维结构的简明的稳态响应和临界风速表达式。
3.
At the same time,it analysis relative factors of smoke control in the tunnal, and gives the critical wind speed of smoke control in the typical tunnel.
在分析目前国内外地铁隧道火灾人员疏散方式的基础上 ,建议采用提高疏散效率且基本不增加投资的侧向疏散平台加联络通道的疏散方式 ,同时分析了隧道烟气控制的有关因素 ,给出了典型隧道烟气控制的临界风速 (危急空气流速
3) critical wind velocity
临界风速
1.
Natural characteristics of long span cable stayed bridges and calculation of its critical wind velocity of flutter;
大跨度斜拉桥的动力特性及其颤振临界风速的计算
2.
In order to determine critical wind velocity of mem- brane at first order instability, further vortex sheet on membrane is use.
为了确定薄膜一阶失稳时的风速,进一步用涡旋面代替风与薄膜表面之间的微小厚度边界层来推导薄膜表面所受的气动力表达式;同时用有限形式的正弦波近似模拟薄膜一阶失稳构型,通过能量守恒原理和牛顿法迭代法求解薄膜振动的最大幅值;根据气动力与薄膜自重和惯性力之间的动力平衡关系获得了薄膜一阶失稳时的临界风速。
3.
The determination of the critical wind velocity is one of the main targets.
失稳临界风速的确定是其主要内容之一。
4) flutter critical wind speed
颤振临界风速
1.
The results show that the flutter critical wind speed can be significantly increased by mounting an upper central stabilizing barrier on the top surface of the upper chords of the transverse frames of the truss girder,and the flutter .
结果表明,在桁架加劲梁横梁上弦杆上侧设置适当高度的上中央稳定板可以较大幅度地提高桥梁的颤振临界风速,并且在常规的稳定板高度范围,颤振临界风速基本上随上稳定板高度的增加而提高;在横梁上弦杆下侧的主桁架内设置适当高度的下中央稳定板也能在一定程度上改善桥梁颤振稳定性,但效果明显不如上稳定板,在某些高度情况下甚至会降低桥梁的颤振临界风速。
2.
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。
3.
Thus the flutter critical wind speeds are much lower and the bridge is more unstable during this period.
尤其是在施工初期 ,结构的刚度比成桥要低得多 ,使得颤振临界风速最低 ,更容易发散 。
5) critical ventilation speed
临界通风速度
1.
Based on the analysis of the variation law of smoke flow in subway platform fire,a concept about critical ventilation speed from platform to concourse was presented.
在分析了地铁站台火灾时烟气流场变化规律的基础上,提出了临界通风速度的概念。
6) critical wind speed for vehicle turnover
临界翻车风速
1.
A model of critical wind speed for vehicle turnover is established referring to the theory of vehicle-dynamics; and the critical wind speed for vehicl.
笔者利用车辆动力学原理建立了列车的临界翻车风速模型,研究了高寒铁路不同海拔地区和冻土地区的临界翻车风速。
补充资料：多通道电子风速计(见转杯式风速表)
多通道电子风速计(见转杯式风速表)
爹豁笔戮翁ng’粗转杯式风速表。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条