Search Results - "Gerstmayr, Johannes"
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Exudyn – a C++-based Python package for flexible multibody systems
Published in Multibody system dynamics (01-04-2024)“…The present contribution introduces the design, methods, functionalities, and capabilities of the open-source multibody dynamics code Exudyn, which has been…”
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Time integration of rigid bodies modelled with three rotation parameters
Published in Multibody system dynamics (01-12-2021)“…Three rotation parameters are commonly used in multibody dynamics or in spacecraft attitude determination to represent large spatial rotations. It is well…”
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3
Multibody Models Generated from Natural Language
Published in Multibody system dynamics (2024)“…Computational models are conventionally created with input data, script files, programming interfaces, or graphical user interfaces. This paper explores the…”
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4
A novel motion-reconstruction method for inertial sensors with constraints
Published in Multibody system dynamics (2023)“…Motion reconstruction for rigid bodies and rigid-body frames using data from inertial measurement units (IMUs) is a challenging task. Position and orientation…”
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5
Evaluation and implementation of Lie group integration methods for rigid multibody systems
Published in Multibody system dynamics (2024)“…As commonly known, standard time integration of the kinematic equations of rigid bodies modeled with three rotation parameters is infeasible due to singular…”
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6
Absolute coordinate formulation and generalized component mode synthesis with rigid body coordinates
Published in Multibody system dynamics (01-04-2023)“…The dynamics of linearly-elastic multibody (MB) systems is conventionally modeled via the floating frame of reference formulation (FFRF); however, its…”
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7
On the kinematics of a concave sidecut line deformed on a flat surface
Published in Acta mechanica (01-12-2021)“…The present paper investigates the static equilibrium of a thin elastic structure with concave sidecut pressed against a flat rigid surface, as an idealization…”
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The nodal-based floating frame of reference formulation with modal reduction
Published in Acta mechanica (01-03-2021)“…In a recent paper of the authors, a novel nodal-based floating frame of reference formulation (FFRF) for solid finite elements has been proposed. The…”
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9
Shape optimization of a snowboard sidecut geometry
Published in Sports engineering (01-12-2022)“…The distribution of the contact pressure occurring under the edge of a snowboard during a carved turn is a key factor influencing the riding behaviour. These…”
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Analysis of Thin Beams and Cables Using the Absolute Nodal Co-ordinate Formulation
Published in Nonlinear dynamics (01-07-2006)“…The purpose of this paper is to present formulations for beam elements based on the absolute nodal co-ordinate formulation that can be effectively and…”
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A Lagrange–Eulerian formulation of an axially moving beam based on the absolute nodal coordinate formulation
Published in Multibody system dynamics (01-10-2013)“…In the scope of this paper, a finite-element formulation for an axially moving beam is presented. The beam element is based on the absolute nodal coordinate…”
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12
Task-Dependent Comfort Zone, a Base Placement Strategy for Mobile Manipulators Based on Manipulability Measures
Published in Robotics (Basel) (01-08-2024)“…The present contribution introduces the task-dependent comfort zone as a base placement strategy for mobile manipulators using different manipulability…”
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The equations of motion for a rigid body using non-redundant unified local velocity coordinates
Published in Multibody system dynamics (01-03-2020)“…A novel formulation for the description of spatial rigid body motion using six non-redundant, homogeneous local velocity coordinates is presented. In contrast…”
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14
PARTS—A 2D Self-Reconfigurable Programmable Mechanical Structure
Published in Robotics (Basel) (01-05-2024)“…Modular self-reconfigurable robots hold the promise of being capable of performing a wide variety of tasks. However, many systems fall short of either…”
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Deformation modes in the finite element absolute nodal coordinate formulation
Published in Journal of sound and vibration (01-12-2006)“…The objective of this study is to provide interpretation of the deformation modes in the finite element absolute nodal coordinate formulation using several…”
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Self-reconfiguration of PARTS: A parallel reconfiguration algorithm based on surface flow
Published in Robotics and autonomous systems (01-06-2023)“…In this paper, we present a parallel reconfiguration algorithm for shape-shifting modular robots with a triangular structure. The reconfiguration planning is…”
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Self-reconfiguration of shape-shifting modular robots with triangular structure
Published in Robotics and autonomous systems (01-01-2022)“…In this paper, we present a reconfiguration algorithm for shape-shifting modular robots with a triangular structure. The algorithm is derived from a novel…”
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18
On the correct representation of bending and axial deformation in the absolute nodal coordinate formulation with an elastic line approach
Published in Journal of sound and vibration (09-12-2008)“…In finite element methods that are based on position and slope coordinates, a representation of axial and bending deformation by means of an elastic line…”
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19
A Mecanum wheel model based on orthotropic friction with experimental validation
Published in Mechanism and machine theory (01-03-2024)Get full text
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A model for contact and friction between beams under large deformation and sheaves
Published in Nonlinear dynamics (01-11-2023)“…This work focuses on the modeling of contact between sheaves and flexible axially moving beams. A two-dimensional beam finite element is employed, based on the…”
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