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Small smart bombs the BTT controller design and trajectory simulation

Author: ZhangZhiMin
Tutor: LiuXiaoLi
School: Nanjing University of Technology and Engineering
Course: Navigation,Guidance and Control
Keywords: Small smart bomb The LMI mixed sensitivity H_ ∞ control BTT controller 6DOF simulation
CLC: TJ412.8
Type: Master's thesis
Year: 2010
Downloads: 160
Quote: 2
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Abstract


Small smart bomb (Small Smart Bomb-SSB) is the face of said air -guided munitions in recent years, the development of a faster , because the structure is simple , easy to use , long range , high accuracy, and low cost advantages concern . SSB BTT (Bank-To-Turn-BTT) control in the flight process usually maximum lifting surface of the elastomer can quickly go to the motor direction , resulting in the need motorized acceleration of the projectile The aerodynamic efficiency is greatly improved . In this paper, targeting practical application of engineering , for a SSB flight control systems , airframe model as a multi-input multi- output (Multi-Input Multi-Output-MIMO) system , the use of robust control theory for analysis using linear matrix inequality (Linear Matrix Inequality-LMI) mixed weighted sensitivity H ∞ control method designed BTT controller suitable for large airspace , and the full trajectory simulation to verify the performance of the control system . Mainly carry out the following tasks : (a) appropriate simplifications and assumptions based on the kinematics and dynamics of small smart bomb model to choose engineering easily measured variables as state variables , sub- pitch - yaw channel and roll turn channel to deduce full the state measurable BTT mathematical model . ( B) the use of LMI mixed weighted sensitivity H ∞ state feedback control design methods , take a feature point on the trajectory for the nominal point , the nominal model , the other feature points as the perturbation model , designed dual - loop robustness BTT controller , and simulation experiments . (C ) the use of MATLAB / Simulink simulation software , in accordance with the model of the missile body , automatic autopilot model , the target model , the five parts of the the relative kinematic model guidance law model established SSB six degrees of freedom simulation model , and a full trajectory Simulation . In this paper, robust control theory to design BTT controller has better control effect , be able to provide some reference for the practical application of engineering through theoretical analysis and digital simulation .

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CLC: > Industrial Technology > Arms industry > Ammunition, fuses, pyrotechnics > Ammunition > Shells : equipped with artillery sub- > Aviation shells
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