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1)  initial distribution of perturbations
初始扰动分布
2)  initial disturbances
初始扰动
1.
Presumable range of initial disturbances of ship-launched rocket with ship swaying considered;
舰船摇摆下的舰载火箭弹初始扰动可能域
2.
The relation between some rocket launcher support stiffness and the initial disturbances of the rocket was studied by the method of combining the multi-rigidbody dynamics simulation with the experiment implemented by designing launcher with adjustable support stiffness and using optical lever measurement.
针对某实验火箭弹发射装置的支撑刚度与火箭弹初始扰动的关系问题,采用多刚体动力学仿真分析和实验验证相结合的方法进行了研究,实验通过设计刚度可调装置及采用光学杠杆测量等方法来实现。
3.
,Processing mass unbalance and dynamic unbalance as random excitation,it s influence on initial disturbances of rocket has been analyzed.
针对火箭弹/发射装置系统,建立半约束期火箭弹的运动微分方程,把火箭弹的质量偏心和动不平衡作为随机激励处理,分析其对火箭初始扰动的影响。
3)  initial disturbance
初始扰动
1.
Mass eccentricity,thrust eccentricity and windage are main factors affecting impact action and initial disturbance parameter values of rocket projectile in the direction pipe.
质量偏心、推力偏心和弹管间隙是影响火箭弹在管内碰撞作用和初始扰动参数值的主要因素,在考虑上述因素存在情况下,对火箭弹的碰撞运动进行仿真计算,得出一些有益结论。
2.
After all, the initial disturbance is diminished and firing concentration of MLRS is improved.
以某车载箱式多管火箭炮为例,根据其结构和发射特点,运用阻尼减振技术来减少火箭发射时发射装置的振动,从而减小火箭初始扰动提高射击密集度。
3.
A corresponding computer program can be used to perform the analytical computation of the vibration of the infrared light axis during the launching process, the initial disturbance of the missile, and the random distribution of the missile during the uncontrolled flight .
通过理论分析和测试,建立了包括导弹、发射筒和发射支架的弹射反坦克导弹发射动力学分析随机模型,设计了分析计算程序,用于分析计算发射过程红外光轴振动、导弹的初始扰动和无控飞行段的散布,预估导弹射入可控域的概率和发射支架的稳定性。
4)  Initial perturbation
初始扰动
1.
Trajectory numerical simulation of super high-speed underwater vehicle owned initial perturbation;
初始扰动下水下超高速运动体弹道数值模拟
2.
Initial perturbations scheme is one of the important problems in the ensemble prediction.
初始扰动方案是集合预报研究的核心问题之一。
3.
The simulation results with the environmental stability starting convection show that the initial perturbation is one of the key elements that influence the development of the cumulus.
利用完全弹性三维冰雹云模式,模拟研究了初始扰动对积云发生发展的影响。
5)  initial distribution
初始分布
1.
The application showed that the modified ladder liquid distributor could efficiently improve the liquid initial distribution and the mass tr.
结果表明 ,改进后的排管式液体分布器能有效提高液体分布器的初始分布质量并相应提高填料塔的传质效率 ,具有广阔的应用前景。
2.
The core of the algorithm is partitioning the state transition diagram of a Markov chain,and running a topological sort algorithm to the state sub spaces just divided,and then computing every state sub space and accordingly regenerating the initial distribution of the Markov Chain according to the topological seqence.
算法的核心是块划分马尔科夫链的状态转移图,对分解所得的状态子空间进行拓扑排序,然后根据拓扑序列计算每个状态子空间,相应地更新马尔科夫链的初始分布。
3.
A good design of transformer insullation must be based on the voltage initial distribution of the transformer winding.
为作好变压器的绝缘设计,必须掌握变压器绕组电压的初始分布情况。
6)  Interference of Initial Launching
初始段扰动
1.
Effect to the Parameters of Anti-Aircraft Missile Trajectory by the Interference of Initial Launching;
初始段扰动对防空导弹弹道参数的影响
补充资料:持续作用扰动下的稳定性


持续作用扰动下的稳定性
stability in the presence of persistently acting perturbations

  持续作用扰动下的稳定性仁咖幽勺协触脚。曰盆兄of哪滋众团ya曲嗯碑由州画d.侣;yc功后”.即c几np班noc”-,。110朋益e拍即IO四,x BO3M脚日e朋,xj 初值问题 交=f(x,r),x(t。)二x。,x任R”(*)之解x。(t)(t)t。)的如下性质:对每一个。>O都有一个占>O使得对每一个适合不等式!y。一x。}<占的夕.,,以及满足以下条件的每一个映射g(x,:): a)在集合 E:={(x,t):t)t。,{x一x。(t)i<。}上g和g,都连续; b)s印(:,,)。::}夕(x,t)一f(x,t)I<吞,初值问题 乡=g(y,t),夕(t。)=夕。,夕任R”的解y。(t)对一切t)屯,有定义且满足不等式 suP}y。(t)一x。(t)}<£. r)t。 Bohi定理(B心h】t玩”~)(【11).设初值问题(,)有解x(t),t)t。,满足以下条件: 幻f和fx对某个。。在瓦。上连续; 刀)s叩。,:。4}人(x(t),t)}}<+的: 下)映射f在点(x(t),‘),t)t。,处对x可微,这个可微性对t)t。是一致的,即 s叩兴}厂(二(‘)+,,,)一f(、(。),:)+ ,》万。}y} 一人(x(t),亡)yl~0当y一,O时.这时,为使初值问题的解在持续作用的扰动下为稳定,必要与充分条件是:方程组又=厂(x,t)沿解x(t)的变分方程(粗血tiona】叹业tio璐)组的上奇异指数(见奇异指数(s泊g止汀exponents))小于零. 若f(x,t)不含t(即自治系统),而解x(t)为周期的或常值的;或者f(x,t)对t有周期而解x(0也有相同的(或可公度的)周期或者常值,则:l)Bohi定理中所陈述的一致可微性条件是多余的(它可从定理的其他条件导出);2)方程组交=f(x,t)沿解x(t)的变分方程组的上奇异指数可以有效地算出来.【补注】持续作用扰动下的稳定性也称为持续扰动下的稳定性(stab正ty Under pelsis招ni perturhatio幻)或全稳定性(total stabiljty).
  
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