Relevant bibliographies by topics / 6DOF method

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic '6DOF method'

Author: Grafiati
Published: 28 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "6DOF method"

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Talley, Michael A., and Shahram Sarkani. "A New Simulation Method Providing Shock Mount Selection Assurance." Shock and Vibration 10, no. 4 (2003): 231–67. http://dx.doi.org/10.1155/2003/756142.

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This paper presents the development and assessment of a practical and efficient process for assessing and/or designing shock isolation systems. This process combines practical methods for determining relative displacements and accelerations (e.g. shock response spectrum analysis) with a new, efficient, easy to use, 6 degree of freedom (6DOF) simulation method known as Shock Isolation Mount Predictions & Loading Estimates (SIMPLE). SIMPLE is also a tool that can easily account for uncertainties in isolated systems and their environments. The implementation of 6DOF rigid body theory in SIMPL
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Eppenga, Roeland, Koert Kuhlmann, Theo Ruers, and Jasper Nijkamp. "Accuracy assessment of target tracking using two 5-degrees-of-freedom wireless transponders." International Journal of Computer Assisted Radiology and Surgery 15, no. 2 (2019): 369–77. http://dx.doi.org/10.1007/s11548-019-02088-9.

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Abstract Purpose Surgical navigation systems are generally only applied for targets in rigid areas. For non-rigid areas, real-time tumor tracking can be included to compensate for anatomical changes. The only clinically cleared system using a wireless electromagnetic tracking technique is the Calypso® System (Varian Medical Systems Inc., USA), designed for radiotherapy. It is limited to tracking maximally three wireless 5-degrees-of-freedom (DOF) transponders, all used for tumor tracking. For surgical navigation, a surgical tool has to be tracked as well. In this study, we evaluated whether ac
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Chen, Kai, Fuqiang Shen, Jun Zhou, and Xiaofeng Wu. "Simulation Platform for SINS/GPS Integrated Navigation System of Hypersonic Vehicles Based on Flight Mechanics." Sensors 20, no. 18 (2020): 5418. http://dx.doi.org/10.3390/s20185418.

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In this study, a simulation platform for an integrated navigation algorithm for hypersonic vehicles based on flight mechanics is designed. In addition, the generation method of inertial measurement unit data and satellite receiver data is introduced. First, the interface relationship between a high-precision six-degree-of-freedom (6DoF) model and the simulation platform in the launch-centered Earth-fixed frame is introduced. Three-axis theoretical specific force and angular velocity are output by the 6DoF model. Accelerometer and gyroscope error models are added, and integral processing of the
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Wu, Yan, Li Hui Cheng, Guo Feng Fan, and Cai Dong Wang. "Inverse Kinematics Solution and Optimization of 6DOF Handling Robot." Applied Mechanics and Materials 635-637 (September 2014): 1355–59. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.1355.

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The kinematics equation of the handling robot with six free degrees has multiple sets inverse solution, and the robot system only can choose one optimized solutions to drive the robot to work. The kinematics model of the robot is established by D-H method, and the inverse solution is derived by an algebraic method. The best flexibility principle was introduced to determine a set of optimal solutions from 8 sets of feasible solutions. The correctness of robot inverse solution method is verified through a set of calculation examples.
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AGUIAR, LILIANA, CARLOS ANDRADE, MARCO BRANCO, RITA SANTOS-ROCHA, FILOMENA VIEIRA, and ANTÓNIO VELOSO. "GLOBAL OPTIMIZATION METHOD APPLIED TO THE KINEMATICS OF GAIT IN PREGNANT WOMEN." Journal of Mechanics in Medicine and Biology 16, no. 06 (2016): 1650084. http://dx.doi.org/10.1142/s0219519416500846.

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Morphological changes are associated to pregnancy, such as weight gain and increased volume of the trunk. The soft tissue artifact can also increase with these characteristics and affect the real joint kinematics. The main objective of this study was to understand the effect of using three different constraining sets in the lower limb joints, in the amount of soft tissue artifact (STA) of pregnant women, in order to obtain the most appropriated joint set to be used in gait and in this population. The ankle, knee and hip joints were modeled respectively with the following characteristics: (1) U
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Yu, Zhaolong, Yugao Shen, Jørgen Amdahl, and Marilena Greco. "Implementation of Linear Potential-Flow Theory in the 6DOF Coupled Simulation of Ship Collision and Grounding Accidents." Journal of Ship Research 60, no. 03 (2016): 119–14. http://dx.doi.org/10.5957/jsr.2016.60.3.119.

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Ship collisions and groundings are highly nonlinear and transient, coupled dynamic processes involving large structural deformations and fluid structure interactions. It has long been difficult to include all effects in one simulation. By taking advantage of the user-defined load subroutine and the user common variable, this article implements a model of hydrodynamic loads based on linear potential-flow theory into the nonlinear finite element code LS-DYNA, facilitating a fully coupled six degrees of freedom (6DOF) dynamic simulation of ship collision and grounding accidents. Potential-flow th
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Xi, Ke, and Chao Yan. "CFD Transonic Trajectory Predictions of Three-Store Ripple Release Using Chimera Method." Applied Mechanics and Materials 513-517 (February 2014): 4490–93. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.4490.

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The complicated unsteady flows with moving boundary were simulated numerically by coupling solving unsteady compressible Navier-Stokes equations and 6DOF rigid-body dynamics equations. The Chimera grid technology was used to handle the relative motion. The three-store ripple release of the wing-store configuration was simulated using this method. The computational results are in good agreement with data from other literature, showing that the method used has a strong applicability to complex multi-body separation problem.
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Gaeid, Khalaf S., Asaad F. Nashee, Ibrahim A. Ahmed, and Mohammed H. Dekheel. "Robot control and kinematic analysis with 6DoF manipulator using direct kinematic method." Bulletin of Electrical Engineering and Informatics 10, no. 1 (2021): 70–78. http://dx.doi.org/10.11591/eei.v10i1.2482.

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The robots pay important role in all parts of our life. Hence, the modeling of the robot is essential to develop the performance specification. Robot model of six degree of freedom (6DoF) manipulator implemented numerically using model-based technique. The kinematic analysis and simulation were studied with Inverse kinematics of the robot manipulator through Denevit and Hartenberg method. Matrix transformation method is used in this work in order to separate joint variables from kinematic equations. The finding of the desired configuration is obtained precisely in all motion trajectory along t
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Jiang, Yifan, Xiang Huang, and Shuanggao Li. "An on-line compensation method of a metrology-integrated robot system for high-precision assembly." Industrial Robot: An International Journal 43, no. 6 (2016): 647–56. http://dx.doi.org/10.1108/ir-03-2016-0091.

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Purpose The purpose of this paper is to propose an on-line iterative compensation method combining with a feed-forward compensation method to enhance the assembly accuracy of a metrology-integrated robot system (MIRS). Design/methodology/approach By the integration of a six degrees of freedom (6DoF) measurement system (T-Mac), the robot’ movement can be tracked with real-time measurement. With the on-line measured data, the proposed iterative compensation for absolute positioning and the feed-forward compensation for relative linear motion are integrated into the assembly process to improve th
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Elango, P., and R. Mohan. "Trajectory optimisation of six degree of freedom aircraft using differential flatness." Aeronautical Journal 122, no. 1257 (2018): 1788–810. http://dx.doi.org/10.1017/aer.2018.99.

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ABSTRACTThe flatness of a six-degree-of-freedom (6DoF) aircraft model with conventional control surfaces – aileron, flap, rudder and elevator, along with thrust vectoring ability is established in this work. Trajectory optimisation of an aircraft can be cast as an inverse problem where the solution for control inputs that yield desired trajectories for certain states is sought. The solution to the inverse problems for certain systems is made tractable when they exhibit differential flatness. Flatness-based trajectory optimisation has a significant advantage over an equivalent collocation-based
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Dissertations / Theses on the topic "6DOF method"

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Málek, Miroslav. "Nestacionární CFD simulace toku uzavírajícím se tabulovým uzávěrem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444633.

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Emergency gates are important safety feature of hydropower plants. They are used to close the flow in order to protect power plant equipment in case of emergency. In this diploma the-sis are realized CDF simulations of emergency closure of wheel-mounted gate on two-dimensional model of the Slapy hydropower plant. Simulations were performed for the case of constant lowering gate speed and for the case of gravitational closure. Dynamic mesh was used to enable the gate motion. The 6DOF method was used for the case of gravitational clo-sure and user defined function was defined to control movement
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Kieviet, Johan. "A non-intrusive video tracking method to measure movement of a moored vessel." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97074.

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Thesis (MSc)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: There are several ports around the world currently experiencing problems with moored vessel motions. Extreme vessel motions are mainly caused by long waves, which can become trapped inside a harbour basin. The extreme motions can cause downtime in port operations and in some instances cause mooring lines to break. Methods and procedures currently available to measure motions of moored vessels require vessel specific information as input. The implementation of these methods is seen as impractical to implement on every vesse
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Book chapters on the topic "6DOF method"

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Kowalewski, D., F. Heinen, and R. Galas. "New Methods of Measuring the Motion (6DOF) and Deformation of Container Vessels in the Sea." In Marine Navigation and Safety of Sea Transportation. CRC Press, 2013. http://dx.doi.org/10.1201/b14960-53.

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Conference papers on the topic "6DOF method"

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Li, Shutong, Wenfang Xie, and Yanbin Gao. "Enhanced IBVS controller for a 6DOF manipulator using hybrid PD-SMC method." In IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2017. http://dx.doi.org/10.1109/iecon.2017.8216481.

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Nowakiewicz, M. "MST-based method for 6DOF rigid body motion planning in narrow passages." In 2010 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2010). IEEE, 2010. http://dx.doi.org/10.1109/iros.2010.5650577.

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Nishino, Hiroki. "A 6DoF fiducial tracking method based on topological region adjacency and angle information for tangible interaction." In the fourth international conference. ACM Press, 2010. http://dx.doi.org/10.1145/1709886.1709937.

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Ting, Yung, Ho-Chin Jar, and Chun-Chung Li. "Control Algorithm for Nanoscale Positioning of a 6DOF Stewart Platform." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-35115.

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A 6DOF Stewart platform driven by piezoelectric actuators was designed for applications in need of nanoscale positioning. By using flexural joints and an error compensation model based on a minimum-points-3-axes measurement method, the manufacturing and assembly errors can be offset. The design of a feedforward controller that is able to reduce the nonlinear hysteresis effect of the piezoelectric actuator is the focus of this article. A dynamic Preisach model is developed to improve the accuracy of hysteresis model, whose inverse model is used as the feedforward controller. Such a control sche
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Ishioka, Hirotaka, Shoya Ota, Kosuke Nakasato, Keiji Onishi, and Makoto Tsubokura. "Coupled 6DoF Motion and Aerodynamics Simulation During Pass-By and Overtaken Motions." In ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ajkfluids2015-17714.

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Recently, unsteady aerodynamics has been drawing many attention because it is becoming clear that unsteady aerodynamics have a big effect on running stability, safety and ride comfort of vehicles. In order to estimate unsteady aerodynamics, it is necessary to reproduce the actual running condition including an atmospheric disturbance and vehicle motion. However, it is difficult to investigate the effect of unsteady aerodynamics in the road test because it has a lot of errors in measurement. In this study, a coupled simulation method between the 6DoF motion of a vehicle and aerodynamics was dev
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Li, Chun-Chung, Yung Ting, Yi-Hung Liu, Yi-Da Lee, and Chun-Wei Chiu. "Task-Space Control Design and Performance Evaluation for a 6DOF Stewart Nanoscale Platform." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49640.

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A 6DOF Stewart platform using piezoelectric actuators for nanoscale positioning objective is designed. A measurement method that can directly measure the pose (position and orientation) of the end-effector is developed so that task-space on-line control is practicable. The design of a sensor holder for sensor employment, a cuboid with referenced measure points, and the computation method for obtaining the end-effector parameters is introduced. A control scheme combining feedforward and feedback is proposed. The inverse model of a hysteresis model derived by using a dynamic Preisach method is u
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Jafari, Aghil, Reza Monfaredi, Mehdi Rezaei, Ali Talebi, and Saeed Shiry Ghidary. "Sliding Mode Hybrid Impedance Control of Robot Manipulators Interacting With Unknown Environments Using VSMRC Method." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-93505.

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In the present paper, the objective of hybrid impedance control is specified and a robust hybrid impedance control approach is proposed. Based on the concept of hybrid control, the task space is decomposed into position and force controlled subspaces. Impedance control is used in the position controlled subspace. Desired inertia and damping are applied in the force controlled subspace to meliorate the dynamic behavior of robot manipulator. Robust controller using the variable structure model reaching control (VSMRC) is introduced that can realize the objective impedance in the sliding mode in
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Martin, Tobias, Arun Kamath, and Hans Bihs. "Modelling and Simulation of Moored-Floating Structures Using the Tension-Element-Method." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77776.

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The application of a discrete mooring model for floating structures is presented in this paper. The method predicts the steady-state solution for the shape of an elastic cable and the tension forces under consideration of static loads. It is based on a discretization of the cable in mass points connected with straight but elastic bars. The successive approximation is applied to the resulting system of equations which leads to a significant reduction of the matrix size in comparison to the matrix of a Newton-Raphson method. The mooring model is implemented in the open-source CFD model REEF3D. T
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Wang, Jianhua, and Decheng Wan. "Direct Simulations of Turning Circle Maneuver in Waves Using RANS-Overset Method." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78376.

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In the present work, a RANS-overset method is used to numerically investigate turning circle maneuver in waves for a twin-screw ship. CFD solver naoe-FOAM-SJTU is used for the numerical computations of the fully appended ONR Tumblehome ship model. Overset grids are used to fully discretize the ship hull, twin propellers and rudders. The simulation of turning circle maneuver is carried out at constant propeller rotational speed with 35° rudder deflection. Open source toolbox waves2Foam is utilized to generate desired waves for the moving computational domain. Predicted ship trajectory and 6DoF
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Ulrich, Christian, and Thomas Rung. "Multi-Physics SPH Simulations of Launching Problems and Floating Body Interactions." In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-83367.

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The paper reports on the predictive prospects of the Smoothed-Particle-Hydrodynamics (SPH) method for jacket launching and foundation installation simulations. The type of considered applications usually involves the interaction between floating structures (e.g. barges and jackets) as well as structures and seabeds. Such scenarios pose challenges to mesh-based solvers, particle methods like SPH therefore are of advantage. The presented procedure captures floating body motions using a quaternion based 6DOF motion solver. Fluid/Soil interaction is predicted by an adequate suspension model. An ef
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