超燃冲压发动机以其高速、高比冲和工作范围宽广的特点,正逐渐成为当今航空航天动力领域的研究焦点。
The scramjet has some advantages of high flow velocity, high specific impulse and wide operating range which become a viewpoint in the research field of power of Aeronautics and Astronautics.
采用变压边力可以明显提高板材的冲压性能,极限拉深比将达到5.0。
Using variable blank holder force can remarkably improve the forming performance, and the limiting drawing ratio would reach 5.0.
实验结果表明,冲压室燃烧效率比采用音速(或超音速)单喷管时提高30%左右。
The secondary combustion efficiency with this type of nozzles was increased by about 30% than that with single sonic (or supersonic) rocket nozzles.
用热力计算方法可确定水冲压发动机最佳水燃比,进而指导水冲压发动机的设计和试验。
Thermodynamic calculation method can be used to determine the optimum water-fuel ratio of water ramjet so as to provide reference to design and test of water ramjet.
在高超声速推进系统中,涡轮冲压组合发动机由于有着宽广的飞行范围,良好的比冲性能,受到世界各国的普遍重视。
As a hypersonic propulsion system, turbo-ramjet received recognition because of the widely flight envelope and excellent performance such as Isp.
脉冲压缩雷达对目标回波具有很高的压缩比,而对不匹配的干扰信号则压缩比很小。
Pluse compressed radar has a high pluse compression ratio for target signals, but low compression ratio for not matched jamming signals.
气动特性实验表明在风洞气流速度比加油机最小飞行速度低16%的条件下,冲压涡轮输出功率即可满足加油需要。
It was found that the output power of ram air turbine can satisfy the flight refuel needs on conditions that the air speed of wind tunnel is 16% lower than the minimal flight speed of aircraft tanker.
但比单用一个电磁阀配置于冲压机械的安全系数高。
It makes the press machine more safe than those that only have one single solenoid valve.
冲压,焊接钢班卓琴住房,单减少,双曲面齿轮,比6.33:1。
Pressed and welded steel banjo housing, single reduction, hypoid gear, ratio 6.33:1.
在固体燃料冲压发动机性能分析基础上,推导了某发动机的推力和比冲与入口流量和温度之间的关系式。
The relations of thrust and specific impulse to inlet air flow and temperature are derived from theoretical analysis of solid fuel ramjet (SFRJ) performance.
在固体燃料冲压发动机性能分析基础上,推导了某发动机的推力和比冲与入口流量和温度之间的关系式。
The relations of thrust and specific impulse to inlet air flow and temperature are derived from theoretical analysis of solid fuel ramjet (SFRJ) performance.
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