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Featured researches published by Fufeng Yang.


Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering | 2018

Measurement of projectile’s in-bore yaw based on the optical lever principle

Qinbo Zhou; Xiaoting Rui; Fufeng Yang; Guoping Wang; Tianxiong Tu; Nan Wang

The initial disturbance of a projectile emerging from the gun muzzle is a major reason for the projectile dispersion. Therefore, measurements of initial disturbances have a great value in improving the understanding. This paper establishes a mathematical model of the measurement system for the projectile’s in-bore orientation, by utilizing the theory of ray tracing and kinematics. The layout of the optical apparatuses is attributed to an optimization problem, and the genetic algorithm is implemented to acquire an optimal layout scheme, which is further verified by test. Also, the linear time-invariant characteristics of the measurement system are numerically verified in the context of spatial ray. These investigations will provide a technical support for the experiment, the optical apparatuses’ layout and calibration of the measurement system.


Journal of Materials Science | 2018

Size effect of carbon black on the structure and mechanical properties of magnetorheological elastomers

Lili Fan; Guoping Wang; Wenju Wang; Huanglei Lu; Fufeng Yang; Xiaoting Rui

Four types of carbon black (CBN330, CBN550, CBN660 and CBN990) with increased particle size were chosen as the reinforcing filler for magnetorheological elastomers (MREs) preparation. The size effect of CB on the structural and mechanical property of MREs was investigated experimentally. Fourier transform infrared spectroscopy was adopted to characterize the structure of CB and MREs. Mooney viscosity, vulcanization curve, thermogravimetric analysis and mechanical property test were conducted to obtain the processing and vulcanization characteristics, thermal stability and mechanical parameters of MREs. It showed that MRE-CBN660 possessed a relatively better overall performance. Furthermore, the mechanical model of MREs and adsorption property of CB on carbonyl iron were studied theoretically. The theoretical results were coincidence with the experimental results, which interpreted the size effect of CB essentially.


AIAA Journal | 2017

Flapwise Vibration Computations of Coupled Helicopter Rotor/Fuselage: Application of Multibody System Dynamics

Xiaoting Rui; Laith K. Abbas; Fufeng Yang; Guoping Wang; Hailong Yu; Yan Wang

Natural vibration characteristics of rotating blades are of fundamental importance from the viewpoint of maneuvering, blade life, vibration levels, aeroelastic, and stability. Helicopters may have ...


ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference | 2009

Advances in Transfer Matrix Method of Multibody System

Xiaoting Rui; Guoping Wang; Laifeng Yun; Bin He; Fufeng Yang; Bao Rong

Multibody system dynamics has become important theoretical tool for wide engineering problems analysis in the world. Transfer matrix method of multibody system (MS-TMM) is a new approach for multibody system dynamics, which is developed in 20 years. In this paper, the transfer matrix method for linear and nonlinear multibody systems are introduced respectively. For linear multibody systems, the new concept of body dynamics equation and augmented eigenvector, the construction method of orthogonality, and the computing method of vibration characteristics and dynamic response are introduced; For nonlinear multibody systems, the discrete time transfer matrix method of multibody system (MS-DT-TMM) are presented. The apply of the transfer matrix method for multibody systems with tree, closed loop and network structures are also introduced. The transfer matrix method has good characteristics: 1 It does not require overall dynamics equations of system and simplify the solution procedure. 2 It has high computing speed, because the system matrices are always small irrespective of the size of a system. 3 It avoids the difficulties caused by developing overall dynamic equations of a system and by computing too high order matrices. 4 It provides maximum flexibility in modeling various configurations of multibody systems, by creating library of transfer matrices and assembling them easily, and by introducing any suitable numerical integration scheme. The new method is efficient for linear and nonlinear multi-rigid-flexible-body system, and it has been paid great attention, because many engineering problem of important mechanical system were solved effectively by using this method.Copyright


Archive | 2007

Advances in Discrete Time Transfer Matrix Method of Multibody System

Xiaoting Rui; Bin He; Laifeng Yun; Guoping Wang; Fufeng Yang; Yuqi Lu

A new method of multibody system dynamics, named discrete time transfer matrix method of multibody system (MS-DT-TMM) is developed and widely used in engineering field in recent years. When using this method for the problems of multibody system dynamics, the global dynamics equations of the system are not needed and the orders of involved system matrices are always small. The advance in MS-DT-TMM in recent years has been studied in this paper as following: 1 Discrete time transfer matrix method of rigid-flexible multibody system is developed to study rigid-flexible multibody system dynamics. 2 Mixed method of MS-DT-TMM and finite element method is developed to study rigid-flexible multibody system dynamics. 3 Mixed method of MS-DT-TMM and multibody system dynamics method is developed to study rigid-flexible multibody system dynamics. 4 Riccati discrete time transfer matrix method of multibody system is developed to increase the computation speed and the computation stability. 5 Discrete time transfer matrix method of controlled multibody system is developed to study dynamics of controlled multibody system. Several corresponding numerical examples are done to validate these proposed methods. All this implies that the proposed methods provide a powerful tool for the study of multibody system dynamics.


Journal of Sound and Vibration | 2010

Discrete time transfer matrix method for dynamics of multibody system with real-time control

Bao Rong; Xiaoting Rui; Guoping Wang; Fufeng Yang


Multibody System Dynamics | 2010

Erratum to: New efficient method for dynamic modeling and simulation of flexible multibody systems moving in plane

Bao Rong; Xiaoting Rui; Guoping Wang; Fufeng Yang


Science China-physics Mechanics & Astronomy | 2011

Dynamic modeling and H∞ independent modal space vibration control of laminate plates

Bao Rong; Xiaoting Rui; Guoping Wang; Fufeng Yang


Mechanism and Machine Theory | 2018

A novel method for the dynamic modeling of Stewart parallel mechanism

Gangli Chen; Xiaoting Rui; Laith K. Abbas; Guoping Wang; Fufeng Yang; Wei Zhu


Materials Research Express | 2018

Effect of carbon black with large particle size on dynamic mechanical analysis of magnetorheological elastomers (MREs)

Huanglei Lu; Wenju Wang; Fufeng Yang; Guoping Wang; Xiaoting Rui

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Guoping Wang

Nanjing University of Science and Technology

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Xiaoting Rui

Nanjing University of Science and Technology

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Bao Rong

Nanjing University of Science and Technology

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Wenju Wang

Nanjing University of Science and Technology

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Bin He

Nanjing University of Science and Technology

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Huanglei Lu

Nanjing University of Science and Technology

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Laifeng Yun

Nanjing University of Science and Technology

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Laith K. Abbas

Nanjing University of Science and Technology

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Lili Fan

Nanjing University of Science and Technology

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Gangli Chen

Nanjing University of Science and Technology

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