Mathematics

Transfer Matrix Method for Multibody Systems

Author: Xiaoting Rui

Publisher: John Wiley & Sons

ISBN:

Category: Mathematics

Page: 768

View: 175

TRANSFER MATRIX METHOD FOR MULTIBODY SYSTEMS: THEORY AND APPLICATIONS Xiaoting Rui, Guoping Wang and Jianshu Zhang - Nanjing University of Science and Technology, China Featuring a new method of multibody system dynamics, this book introduces the transfer matrix method systematically for the first time. First developed by the lead author and his research team, this method has found numerous engineering and technological applications. Readers are first introduced to fundamental concepts like the body dynamics equation, augmented operator and augmented eigenvector before going in depth into precision analysis and computations of eigenvalue problems as well as dynamic responses. The book also covers a combination of mixed methods and practical applications in multiple rocket launch systems, self-propelled artillery as well as launch dynamics of on-ship weaponry. • Comprehensively introduces a new method of analyzing multibody dynamics for engineers • Provides a logical development of the transfer matrix method as applied to the dynamics of multibody systems that consist of interconnected bodies • Features varied applications in weaponry, aeronautics, astronautics, vehicles and robotics Written by an internationally renowned author and research team with many years' experience in multibody systems Transfer Matrix Method of Multibody System and Its Applications is an advanced level text for researchers and engineers in mechanical system dynamics. It is a comprehensive reference for advanced students and researchers in the related fields of aerospace, vehicle, robotics and weaponry engineering.

Visualized Simulation and Design Method of Mechanical System Dynamics Based on Transfer Matrix Method for Multibody Systems

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The transfer matrix method for multibody systems is a new method with very high computational speed developed in recent 20 years for studying multibody system dynamics. By combining transfer matrix method for multibody systems, computer graphics, and open-source software, this article puts forward an approach and software MSTMMSim for visualized simulation and design of mechanical system dynamics. The approach includes the following procedures in sequence: design of functional model, design of three-dimensional solid model, design of dynamics model, automated formation of dynamics equations, and software MSTMMSim for visualized simulation and design of mechanical system dynamics. The proposed method and software provide a platform to realize the simulation and design of complex mechanical systems with the following characteristics: (1) automatic deduction of the overall transfer equation, (2) high computational speed, and (3) high visualization and programming of dynamics simulation and design process. The proposed method and software are verified by the practical example of simulation and design of a tank system dynamics using this platform.

Study on Automatic Deduction Method of Overall Transfer Equation for Branch Multibody System

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The transfer matrix method for multibody system is a new method developed in recent 20 years for studying multibody system dynamics. The new version of transfer matrix method for multibody system and automatic deduction theorem of system overall transfer equation have been formed in 2012. The overall transfer equation plays one of the key roles for transfer matrix method for multibody system. In order to study branch system dynamics with new version of transfer matrix method for multibody system, the automatic deduction theorem of overall transfer equation has been expanded in this article, which made it practicable to deduce automatically the overall transfer equation for branch system with new version of transfer matrix method for multibody system. The transfer equations and transfer matrices of typical elements are developed for the automatic deduction theorem of overall transfer equation. Thereby new version of transfer matrix method for multibody system owns the following features: there is no need to establish the global dynamics equation of system, by which the study on multibody system dynamics will be simplified greatly; the automatic deduction of overall transfer equation for multibody system is realized, consequently the algorithm is simple and highly programmable; moreover, the order of system matrix is always low, which result in high computational speed. The branch multibody system dynamics has been computed with the automatic deduction theorem of overall transfer equation as well as ordinary multibody system dynamics method. The computational results obtained by the two methods have good agreements, which validate the automatic deduction theorem of overall transfer equation for branch multibody system.

Analysis of the Response of a Reinforced Concrete Shear Wall Structure During Earthquakes Using the Transfer Matrix Method of Multibody Systems

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Although reinforced concrete shear wall structures are widely used in high-rise buildings, the methods used to analyze the seismic response of such a structure during an earthquake generally have low calculation efficiencies. In this article, the transfer matrix method of multibody systems is first established as a mechanical model of a regular reinforced concrete shear wall structure with both bifurcated and closed transfer paths to analyze the seismic responses of structures. By separating the shear wall legs, establishing a state vector relationship between the two endpoints of the coupling beams, and combining all state vectors of the inputs or outputs of each shear wall leg, the total transfer between shear wall legs is realized, and the overall transfer equation and overall transfer matrix of a shear wall structure are obtained. Applying the transfer matrix method of multibody systems, a 15-story shear wall structure is used as an engineering example to analyze seismic responses for frequent and rare earthquakes using MATLAB software. The findings show that the transfer matrix method of multibody systems provides similar results to ANSYS but that the transfer matrix method of multibody systems greatly increases calculation efficiency while maintaining accuracy.
Technology & Engineering

Manufacturing Engineering and Automation I

Author: Liangchi Zhang

Publisher: Trans Tech Publications Ltd

ISBN:

Category: Technology & Engineering

Page: 2880

View: 1000

This special volume brings together the latest advances in, and applications of, Manufacturing Engineering and Automation. It comprises 598 peer-reviewed papers selected from over 1000 papers submitted by universities and industrial concerns all over the world. Volume is indexed by Thomson Reuters CPCI-S (WoS).
Technology

Collection des publications

Author: Université de Liège. Faculté des sciences appliquées

Publisher:

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Category: Technology

Page:

View: 399

Control theory

Dynamics of Flexible Multibody Systems

Author: American Society of Mechanical Engineers. Winter Meeting

Publisher: American Society of Mechanical Engineers

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Category: Control theory

Page: 231

View: 873

Dynamics

Multi-body Dynamics

Author: Homer Rahnejat

Publisher: Wiley-Blackwell

ISBN:

Category: Dynamics

Page: 355

View: 824

Emphasizing the need for all engineers to understand the fundamental concepts of engineering dynamics, the author explains topics related to the overall system behavior of an assembly of parts or cluster of objects. The bulk of the book is a discussion of relevant work by Newton, Lagrange, Euler, and others, including discussions of complex numerical solvers, matrix manipulation techniques, and other numerical techniques. The final chapters presents recent research on complex engineering problems, with treatments of engine and power train dynamics, as well as optimal control theory. Distributed by ASME. Annotation copyrighted by Book News, Inc., Portland, OR
Science

Automatic Control in Aerospace, 1992

Author: Daniel B. DeBra

Publisher: Pergamon

ISBN:

Category: Science

Page: 553

View: 575

Space vehicles have become increasingly complex in recent years, and the number of missions has multiplied as a result of extending frontiers in the exploration of our planetary system and the universe beyond. The advancement of automatic control in aerospace reflects these developments. Key areas covered in these proceedings include: the size and complexity of spacecrafts and the increasingly stringent performance requirements to be fulfilled in a harsh and unpredictable environment; the merger of space vehicles and airplanes into space planes to launch and retrieve payloads by reusable winged vehicles; and the demand to increase space automation and autonomy to reduce human involvement as much as possible in manned, man-tended and unmanned missions. This volume covers not only the newly evolving key technologies but also the classical issues of guidance, navigation and control.