Analysis of the robustness of the system to control the relative motion of an ion beam shepherd
Journal Title: Технічна механіка, Техническая механика, Technical Mechanics - Year 2018, Vol 1, Issue 1
Abstract
The goal of the paper is to analyze the robustness of the system to control the ion beam shepherd motion with respect to a space debris object. The robustness was analyzed considering the action of the ion beam, a wide spectrum of orbital disturbances, relative position and actuation errors, the nonstationarity and parametric uncer-tainty of the plant, and limitations on the control action amplitude. Amplitude and phase stability margins were determined for each of the control channels. The stability analysis of a plant with variable coefficients was reduced to the analysis of the robust stability of a system with uncertain parameters. The uncertain parameters of the mathematical model were represented using a linear fractional transformation. Using this description, the uncertainty of the model was represented as a structured block-diagonal disturbance block. A robustness measure based on the concept of structured singular values was used. The calculated structured singular values demonstrate the system robustness to all the factors under consideration.
Authors and Affiliations
S. Khoroshylov
Keywords
Related Articles
- EP ID EP461810
- DOI -
- Views 52
- Downloads 0
Stability margin of optimization system of rotary rocket motion
The research purpose is to make a quantitative assessment of the stability margin on the planes of characteristic polynomial roots, the two coefficients of the control law and amplitude-phase-frequency characteristic of...
Study of gas and gas-dispersed flows in support of the development of space hardware objects and technological processes
This paper presents the mathematical models, algorithms, and programs developed in the past five years at the Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space of Ukraine...
Synthesis of observer of extended state vector considering requirements for closed loop of control given in frequency domain
To consider a closed loop of a combined control system, a procedure for the synthesis of an extended state observer is proposed. Requirements for the specified quality and the stability of the closed loop of the control...
Estimation of braking distances of electric train for emergency pneumatic and electric-pneumatic braking
A brief analysis of the results associated with studies of emergency braking a new-generation high-speed passenger train is provided. The braking system of railway rolling stock is one of the main systems providing the s...
Numerical simulation of axially symmetric flow around bodies of simple configurations using hierarchy grids
A variation of the statistic Monte-Carlo method for the stationary statement, namely test particles method (TPM), is considered. The study objective is to develop the TPM using computations on hierarchy grids. The replac...