... and some mathematical performance relations. Modelling and simulation are performed in Matlab/Simulink program by using the state space model approaches with the parameters mostly taken from Solidworks. Proportional integral derivative (PID) approach is used as control technique. Morphing amount...

...Jakub Šedek; Roman Růžek Purpose The purpose of this paper is to present a methodology for the determination of the stiffness when using simplified substitutive model of the joint. The usage of detailed finite element (FE) model of the joint in complex assemblies is not convenient; therefore...

...Rooh ul Amin; Aijun Li Purpose The purpose of this paper is to present μ-synthesis-based robust attitude trajectory tracking control of three degree-of-freedom four rotor hover vehicle. Design/methodology/approach Comprehensive modelling of hover vehicle is presented, followed by development...

...Laszlo Hetey; James Campbell; Rade Vignjevic Purpose – This paper aims to describe the development of an advisory system that helps building sound finite element (FE) models from computer-aided design data, with actual uncertainty levels expressed by error values in per cent, as today...

... the planform geometry, arc‐anhedral angle, basic airfoil and leading‐edge cut. By using the CFD technique, a large number of numerical parafoil models with different geometric parameters are developed to study the correlations between these parameters and parafoil aerodynamic performance. Findings The CFD...

...Tugrul Oktay; Cornel Sultan Purpose The purpose of this paper is to show the feasibility of constrained model predictive control (MPC) for sophisticated helicopter models which are derived by physical considerations. Design/methodology/approach Physics‐based modeling is used to create control...

...Shi Rongqi; Song Jianmei Purpose The purpose of this paper is to clarify the dynamic principle of internal structure of a complex morphing wing and control the wing to change configurations rapidly and smoothly. It includes modeling the dynamics of the morphing wing and designing a rational...

...Yue Wang; Shijie Xu Purpose The purpose of this paper is to present a full fourth‐order model of the gravity gradient torque of spacecraft around asteroids by taking into consideration of the inertia integrals of the spacecraft up to the fourth order, which is an improvement of the previous fourth...

... roll‐up model. Then, a second‐order time‐marching algorithm is developed for solving the governing equations. The algorithm is formulated in explicit form to improve computing efficiency. To avoid the numerical instability, a high order variable artificial dissipative term is directly introduced...

.../approach A nonlinear flexible multibody dynamics analysis code DYMORE, as well as the comprehensive analytical model of rotorcraft aerodynamics and dynamics (CAMRAD) II, are used to perform the task. The predicted results on rotating free vibration analysis, airloads, blade elastic motions, and structural...

...Hakan Oktal; Kadriye Yaman Purpose The purpose of this paper is to develop an analytical approach for workload measurement based on the task times and the changing task priorities of en route air traffic controllers (EATC). Design/methodology/approach A model called Total Airspace Workload...

... health and usage monitoring, rotor blade design optimization, ACSR, composite rotor blades and smart rotor development. Furthermore, rotorcraft modeling and analysis aspects are highly developed with considerable manpower available and being generated in these areas. Practical implications Two...

... different techniques are developed to extract nonlinear element's dynamic behavior from MELF. The first method, in which no pre‐assumed model is considered for the nonlinearity mechanism behavior, is called “direct identification method.” The second method is “model based identification method.” Findings...

...R. Ozgur Doruk Purpose The purpose of this paper is to design and simulate a linearized attitude stabilizer based on linear quadratic regulator theory (LQR) using the multiplicative definition of the attitude. Design/methodology/approach The attitude is modeled by the modified Rodriguez...

..., and acceleration for the actuators from those of the platform. Solving the inverse kinematics problem is inevitable in motion system's dynamic modeling. There are plenty of methods proposed to solve the inverse kinematics problem (Dasgupta and Mruthyunjaya, 2000). Different literatures have used different...

... solid walls, the no slip condition is applied. Re‐Normalization Group k‐ε model is used for turbulence modeling. The pressure‐velocity coupling is calculated by the SIMPLEC algorithm. Second‐order upwind discretization is considered for the convection terms. Finite volume method...

...Wang Xinlong; Ji Jiaxing; Li Yafeng Purpose Troposphere delay is one of the important error sources in global positioning system (GPS) positioning. The purpose of this paper is to analyze the accuracy and adaptability of GPS troposphere error correction models, and to provide theoretic foundation...

...Wissam Karam; Jean‐Charles Mare Purpose The purpose of this paper is to develop accurate model and simulation of mechanical power transmission within roller‐screw electromechanical actuators with special attention to friction, compliance and inertia effects. Also, to propose non‐intrusive...

... been investigated by CFD. At the airfoil solid walls no slip condition (zero velocity) was applied. Re‐normalization group k‐ε model was used for turbulence modeling. The pressure‐velocity coupling was calculated by the SIMPLEC algorithm. Second‐order upwind discretization was considered...

...María Gloria Del Río‐Cidoncha; Juan Martínez‐Palacios; Francisco Ortuño‐Ortiz Purpose The main goal of this paper is to show how the automation of tasks in solid modelling with Catia V5 is approached, by means of macros, working under the Windows operating system and with the Visual BASIC...