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launching environment
相关语句
  发射环境
     Aim To study suppression and prediction methods for high spout parameter jet noise of missile for suppressing launching effect and improving launching environment.
     目的 研究火箭发动机高喷口参数燃气尾流噪声的抑制技术及其预测方法,以降低发射效应,改善发射环境
短句来源
     In the paper, the launching environment parameters are analyzed firstly, and the characteristic value is found.
     首先分析了典型弹药的发射环境参数,并找出了其特征值.
短句来源
     The characters of the air-launched rocket in its launching environment and tests are analyzed.
     分析空射火箭发射环境及测试特点。
短句来源
  “launching environment”译为未确定词的双语例句
     STUDY ON THE MODELING OF THE INTERNAL BALLISTIC OF A GAS GUN AND LAUNCHING ENVIRONMENT SIMULATION
     气体炮内弹道建模与发射环境模拟研究
短句来源
  相似匹配句对
     Environment
     拯救地球环境
短句来源
     The Environment
     环境
短句来源
     The characters of the air-launched rocket in its launching environment and tests are analyzed.
     分析空射火箭发射环境及测试特点。
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The similarity of rotor-wing down-wash flow field is studied. Based on the controlling equations of rocket movement, the criteria of initial trajectory similarity are deduced and analyzed in detail with the down-wash flow considered as a wind effect. Conditions required by the above criteria of similarity are proposed. These results provide a theoretical basis in establishing experimental device for the ground simulation of helicopter air-launching environment.

研究了直升机旋翼下洗流场的相似性。从弹箭运动控制方程出发,将下洗流场作为纵风效应,详细推导和分析了弹道相似所必须满足的相似准则,以及满足这些准则所必须满足的条件,从而为建立直升机空中发射环境地面模拟实验装置奠定了理论基础。

Aim To study suppression and prediction methods for high spout parameter jet noise of missile for suppressing launching effect and improving launching environment. Methods The theory of micropore muffler and microperforated panel construction was used in suppressing launching noise and shock wave, and the jet noise theory was used in theoretic prediction of sound field on the basis of fluid calculation. Results The suppression method is successful to depress 49 6% superpressure and the prediction...

Aim To study suppression and prediction methods for high spout parameter jet noise of missile for suppressing launching effect and improving launching environment. Methods The theory of micropore muffler and microperforated panel construction was used in suppressing launching noise and shock wave, and the jet noise theory was used in theoretic prediction of sound field on the basis of fluid calculation. Results The suppression method is successful to depress 49 6% superpressure and the prediction results are in good accordance with the experimentation results. Conclusion The suppression device which is simple and functional can markedly depress noise and shock wave superpressure, and the theoretic prediction methods can accurately meet the requirement.

目的 研究火箭发动机高喷口参数燃气尾流噪声的抑制技术及其预测方法,以降低发射效应,改善发射环境; 方法 应用小孔消声和微穿孔消声原理提出发射噪声和冲击波超压的抑制方案,并在给出流场计算方法的基础上,运用喷气噪声理论给出发射尾流噪声的理论预测方法; 结果 该抑制方案降低了超压值49.6% ,理论与试验结果符合较好; 结论 抑制装置结构简单实用,能显著降低噪声和冲击波超压,理论预测方法能较准确地满足预测要求;

From the viewpoint of the whole system including cannon, projectile, propellant and fuze, this paper establishes the quantificational relation between the launch environment of the fuze and the parameters of the overall arrangement of the whole system, providing a basement for the studyon the response of the fuze mechanism, and the simulation and dynamic design of the fuse system.

从炮、弹、药、引信全系统的角度 ,建立了引信发射环境与系统总体布局结构参数之间的定量关系 ,为研究引信机构的响应 ,实现引信系统的仿真和动态设计 ,提供了研究基础

 
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