Progress of Stewart Vibration Platform in Aerospace Micro–Vibration Control

He, Zepeng; Feng, Xiangchao; Zhu, Yeqing; Yu, Zhaojie; Li, Zhen; Zhang, Yan; Wang, Yinhang; Wang, Pengfei; Zhao, Liangyu

doi:10.3390/aerospace9060324

Cited by 19 publications

(5 citation statements)

References 101 publications

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“…He et al [15] used ADAMS software to establish the dynamic simulation model of Stewart platform, and simulated and analyzed the platform stiffness, and obtained the change curves of the platform stiffness with the factors of the position, load, speed, etc., and compared and verified the results with the theoretical analysis. Hu and Jing [16] analyzed the sources and effects of the stiffness error of the Stewart platform, including the length error, angle error, cross-section error and material error of the outrigger, etc.…”

Section: Literature Reviewmentioning

confidence: 99%

Computer Simulation Study of Stiffness Variation of Stewart Platform under Different Loads

Zhao,

Liu,

et al. 2024

ijacsa

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The ability of Stewart platform to resist deformation is an important target for designing and optimizing the platform, and studying the variation rule of stiffness of Stewart platform under different loads can help us to understand the dynamic characteristics of the platform, guide the design and control of the platform, and improve the performance and stability of the platform. The purpose of this paper is to change the law of stiffness variation and influence factors of Stewart platform under different loads, aiming to study the change of stiffness of Stewart platform under different loads as well as the influence factors, and the influence of stiffness change on the performance and stability of the platform. Firstly, using MATLAB software, the kinematic and mechanical model of Stewart platform was established, the analytical expression of the stiffness matrix of the platform was deduced, and the stiffness characteristics and stiffness singularity of the platform were analyzed. Then, using ADAMS software, the dynamic simulation model of the Stewart platform was established, and the stiffness of the platform was simulated and analyzed. The results show that the stiffness of the Stewart platform will appear singularity or sudden change under some special positions or loads, which should be avoided as much as possible so as not to affect the performance and stability of the platform. There is a certain correlation between the dynamic and static stiffness, but it is also affected by the nonlinearity of the structure, damping, coupling and other factors.

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Section: Literature Reviewmentioning

confidence: 99%

Computer Simulation Study of Stiffness Variation of Stewart Platform under Different Loads

Zhao,

Liu,

et al. 2024

ijacsa

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“…However, nothing is said about the equilibrium stability of the mechanical system with six degrees of freedom as a whole, and the task is not even posed. As can be seen from the analysis of the above works, as well as from the available review articles by Markou et al (2021), He et al (2022), little attention has been paid to the issues of a stable equilibrium state of the operation of the Stewart platform mechanical system. Thus, in the work of Markou et al (2021) only a simplified model of the equilibrium state is described: a static equilibrium state is considered.…”

Section: Use Of the Stewart Platform Models In Aviationmentioning

confidence: 99%

Mathematical Model of Stable Equilibrium Operation of the Flight Simulator Based on the Stewart Platform

Lukianov,

Kabanyachyi

2023

Aviation

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This paper analyses the available mathematical models of flight simulators based on the Stewart platform. It was found that there is no model that describes the conditions for stable dynamic equilibrium operation of the Stewart platform as a function of a number of important motion parameters. In this context, a new physical model is proposed based on classical models of theoretical mechanics using the d’Alembert formalism, the concept of stable equilibrium of a mechanical system. This model mathematically separates the stable equilibrium of the flight simulator motion system from the general uniformly accelerated motion. The systems of equations obtained in the framework of the model connect the physical and geometrical parameters of the Stewart platform and make it possible to determine the reactions in the upper hinges of the platform support, the limit values of the position angles in the space of the base of the support of the Stewart platform, under which the condition of stable equilibrium operation of the Stewart platform is satisfied. The proposed physical model and the analytical relations obtained on its basis are of great practical importance: the operator controlling the operation of the Stewart platform-based flight simulator can control the range of parameters during training so as not to bring the flight simulator out of stable equilibrium.

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“…Now, respecting the Euler–Lagrange equation, expressed as follows [ 24 , 25 , 26 , 27 , 28 , 29 , 30 ]

where parameters q , F and Q are the vector of generalized coordinates, friction and damper forces vector as well as the generalized forces vector, respectively, combined with the discussed motion formula, the overall dynamic equation can be formed in the following manner

…”

Section: System Representationmentioning

confidence: 99%

A Measurement-Aided Control System for Stabilization of the Real-Life Stewart Platform

Hunek

Majewski

Zygarlicki

et al. 2022

Sensors

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In the paper, an innovative control system devoted to the stabilization of the parallel manipulator-type Hexapod is presented. The device consists of three main parts, allowing us to reach the desired location during various external disturbances. Indeed, the telescopic boom located on the car along with the system providing the correction of the boom column deflection as well as the gyroscopic self-leveling head constitute a complex tool covering a plethora of modern techniques and solutions. Through the application of advanced issues strictly derived from nonlinear identification and multivariable control theory branches, the dynamical behavior of the discussed device has been handled in order to achieve a proper reference operation. Naturally, it has been supported by a set of accompanying approaches related to the processes of the real-time measurement and robust data transmission. It should be emphasized that the proposed computer-aided system is intended for the film industry, where image stabilization plays a crucial role. Such a statement has additionally been confirmed by other innovative products introduced by a company placed in Opole, Poland, called MovieBird International.

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Progress of Stewart Vibration Platform in Aerospace Micro–Vibration Control

Cited by 19 publications

References 101 publications

Computer Simulation Study of Stiffness Variation of Stewart Platform under Different Loads

Computer Simulation Study of Stiffness Variation of Stewart Platform under Different Loads

Mathematical Model of Stable Equilibrium Operation of the Flight Simulator Based on the Stewart Platform

A Measurement-Aided Control System for Stabilization of the Real-Life Stewart Platform

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