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運載火箭飛行力學(xué)環(huán)境虛擬試驗及可視化系統設計與實(shí)現
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北京宇航系統工程研究所,北京宇航系統工程研究所,北京宇航系統工程研究所,北京宇航系統工程研究所,北京宇航系統工程研究所

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TP311.1

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Design and Implementation of Virtual Test and Visualization System for Launch Vehicles’ Flight Mechanical Environments
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Beijing Institute of Astronautical System Engineering,Beijing Institute of Astronautical System Engineering,Beijing Institute of Astronautical System Engineering,Beijing Institute of Astronautical System Engineering,Beijing Institute of Astronautical System Engineering

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    摘要:

    運載火箭的飛行力學(xué)環(huán)境隨著(zhù)飛行過(guò)程不斷發(fā)生變化,而當前無(wú)論是基于實(shí)物試驗還是基于數值分析,火箭的飛行力學(xué)環(huán)境分析大多針對特定飛行狀態(tài)和工況而無(wú)法給出動(dòng)態(tài)變化信息,因此開(kāi)展了飛行力學(xué)環(huán)境虛擬試驗及可視化技術(shù)研究。基于特征代理模型采用Fortran語(yǔ)言設計了場(chǎng)數據快速預測算法,在采樣數值仿真的基礎上實(shí)現了火箭在大氣飛行過(guò)程中的動(dòng)態(tài)氣動(dòng)力與氣動(dòng)熱環(huán)境虛擬試驗;采用C++開(kāi)發(fā)了實(shí)時(shí)分站載荷算法,實(shí)現了火箭飛行期間的載荷環(huán)境虛擬試驗。開(kāi)發(fā)了與運載火箭飛行仿真配合的總線(xiàn)通信接口,并基于EnSight開(kāi)發(fā)了分布式動(dòng)態(tài)可視化系統,通過(guò)共享內存的進(jìn)程間通信方式實(shí)現了飛行力學(xué)環(huán)境的動(dòng)態(tài)顯示。結果表明,該系統可以給出火箭飛行力學(xué)環(huán)境的全局和關(guān)注點(diǎn)信息的動(dòng)態(tài)變化,為飛行力學(xué)環(huán)境精細化分析和直觀(guān)可視化研究提供了手段。

    Abstract:

    The flight mechanical environments always change, accompanied by the flight process of the launch vehicles. The environmental analyses are usually carried out for specific situations and cannot depict dynamic information, whether by experiments or by numerical simulations. Therefore, technical research on virtual test and visualization is given for the flight environments. Based on characteristic surrogate model method, field data depiction algorithm is developed using Fortran. Virtual tests of dynamically aerodynamic and aerothermal environment then are implemented using this algorithm on the basis of sampling numerical simulations. Real-time load computations are developed by C++, and virtual tests of dynamic load are realized. Bus interface is developed for the communication to flight simulation platform, and distributed visualization system is developed based on EnSight. Inter-process Communication is selected to qualify the dynamic display of flight environment. The results show that, the system can give overall and detailed information, which can provide means for refined analyses of flight environments and intuitively visual research.

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完顏振海,梁磊,孟超,楊亮,徐嘉.運載火箭飛行力學(xué)環(huán)境虛擬試驗及可視化系統設計與實(shí)現計算機測量與控制[J].,2017,25(11).

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歷史
  • 收稿日期:2017-03-25
  • 最后修改日期:2017-05-09
  • 錄用日期:2017-05-09
  • 在線(xiàn)發(fā)布日期: 2018-01-02
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