研究飞行振动环境载荷地面试验模拟的等效性问题。
Excitation equivalence in ground vibration test with respect to real flight vibration environment is studied.
这两种昆虫的飞行机理比较复杂,胸部长有较多肌肉,这样它们才能有力量振动翅膀。
The two insects have complex flight mechanisms with major muscles in the thorax, the chest region, which power the flapping of wings.
飞行器的架构要求必须能够承受超重负荷和抵御强烈振动。
The shell of the spacecraft must be able to endure heavy loads and intense vibrations.
正常光线向各个方向振动垂直的飞行;但是偏振光只有在一个平面上振动。
Regular light vibrates in all directions perpendicular to its direction of travel; polarized light, however, vibrates only in one plane.
许多鸟都是通过振动翅膀来飞行的。
许多有机分子作为固有振动频率相同的飞行情报区。
Many organic molecules have the same intrinsic vibration frequency as FIR.
从弹箭空间摆动和弹性振动耦合的动力学模型出发,对弹箭飞行过程中的共振不稳定性问题进行了研究。
Based on the coupled dynamic model for the spatial rotation and elastic vibration of a body, the resonance unstability of projectiles in flight is studied in the paper.
提出对前向飞行的水平旋翼的振动进行补偿,可以大幅度提高合成距离像的质量。
And it is proposed that much improvement of the range profiles can be achieved by using the vibration compensation of the main rotor of the helicopter in forward flight.
试图研究一种利用弹丸在弹道飞行过程中所引起的空气振动来发电的新型引信电源。
This paper tried to study a new kind of fuse power generated by air quaking during the bullet flying.
在正弦风切变假定下,利用计算机计算和飞行模拟器模拟研究了长周期振动频率上下的正弦波风切变对飞机着陆航迹的影响。
On the assumption that the wind shear is sinusoidal, the effects of long periodic oscillation on the landing path of an aircraft were studied by computer calculation and with flight simulator.
许多鸟都是通过振动翅膀来飞行的。
飞机采用固定式空中受油装置后,可能引起飞机飞行过程中的振动,严重时危及飞机的飞行安全。
Vibration of fixed air refueling receptacles that can occur in flight causes serious hazards to the safety of flight.
悬挂式龙门梁飞行光路结构,高速振动小,接近性及机床驱动特性良好。
O-type frame together with the flying ray ensures the low vibration during the high speed running, and easy to access and operate.
当航速为零时,则是通过鳍在水平位置附近的上下振动来产生升力,与鸟类和昆虫的扑翼飞行相似。
When the speed of AUV is zero or low speed, lift is produced by the vibration of fin stabilizer at the horizontal position, which is similar to the flapping wing flight of insects and birds.
弹头在飞行过程中的振动主要是随机振动,计算随机激励下弹头的响应是弹头结构强度和环境分析的重要任务之一。
The vibration of flying missile head is a subject of random vibration mainly. Calculating the random response is a major work of missile head structure and environment analysis.
为了研究飞行器在纵向大迎角状态下的动态失速现象,设计了一套用于低速风洞的升沉振动测量装置。
In order to study dynamic stall phenomena of an aircraft in portrait at a high Angle of attack, designing a measuring device of heave oscillation for a low speed wind tunnel.
本文研究大长径比自旋弹箭在飞行时横向振动的自振特性。
The transverse self oscillation characteristics of a spinning rocket in flight was studied.
研究具有自旋角速度的细长弹箭在飞行时横向振动的自振特性。
The transverse self oscillation characteristics of a spinning rocket in flight is studied.
本文讨论具结构阻尼系数的细长体飞行器的弹性振动方程支配系统的最优控制问题。
In this paper, we discuss the optimal control problem for an elastic oscillating system of fine-long cube flying object with structure damping coefficient.
通过建立动基座对准速度匹配的系统模型,对影响传递对准的一些重要因素如杆臂效应、挠曲振动等进行了分析,按照既定的载机机动方案采集飞行数据进行离线仿真。
By establishing the system model of moving-base alignment velocity match, the factors that influenced the transfer alignment were analyzed, such as lever arm effect, flexible vibrations, etc.
分析了准确测量空空导弹在飞行试验中振动数据的重要性,介绍了一种空空导弹振动传感器信号多量程采集的方法。
The paper analyses the importance of measuring vibrating data of air-to-air missile in flying experiment, it introduces a multi-range acquisition method of air-to-air missile vibrating sensor signal.
管路振动故障已成为新机试飞中的突出问题,一旦管路发生振动故障,将直接危及飞机的飞行安全。
Vibration trouble in pipe has been an evident problem in new aircraft flight test, once vibration trouble in pipe occurs, which would pose threat to flight safety.
研究跨音速飞行航天器的流-固耦合振动非阻尼现象的作用机理。
The aerodynamic undamping phenomena and the relevant mechanism are investigated for the aerospace launch vehicle undergoing fluid-structure coupling oscillation in transonic flow.
实验系统不但能够模拟柔性航天结构的运行环境,还能对由于航天飞行器的机动和折叠结构的展开而引起的振动进行模拟。
This system could emulate not only the work conditions, but also the motion of space structures and deployment of the foldable structures.
第一部分介绍飞行器实测振动数据的平稳性、周期性和正态性检验的几种方法;
The first deals with several i methods used to test stationarity, periodicity and guassianity of the recorded data of aircraft vibration.
本文将垂直发射飞行器简化为圆柱形悬臂梁,利用随机振动理论,建立了飞行器任意风向的响应。
This paper simplifies the vertical launch vehicle as a cylindrical cantilever beam and builds the response to wind with any direction for the vehicle using random vibration theory.
本发明涉及一种用于将铆钉(3)压和固定到飞行器构件(8)的构件孔(7)中的振动铆接工具(1,15)。
The invention relates to a vibrating rivet tool (1, 15) for pressing and fixing rivets (3) in component holes (7) in component (8) of aircraft.
本发明涉及一种用于将铆钉(3)压和固定到飞行器构件(8)的构件孔(7)中的振动铆接工具(1,15)。
The invention relates to a vibrating rivet tool (1, 15) for pressing and fixing rivets (3) in component holes (7) in component (8) of aircraft.
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