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Machines
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Advance in Multibody System Dynamics
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Advance in Multibody System Dynamics

A special issue of Machines (ISSN 2075-1702).

Deadline for manuscript submissions: closed (30 June 2015) | Viewed by 20584

Special Issue Editor

Prof. Dr. Yoshiaki Terumichi

E-Mail Website
Guest Editor
Department of Engineering and Applied Sciences, Faculty of Science and Technology, Sophia University, Tokyo, Japan
Interests: multibody dynamics; vehicle dynamics; nonlinear dynamics; vibration and control

Special Issue Information

Dear Colleagues,

The recent development of multibody dynamics contributes to the machine industry in the improvement of not only dynamic analysis of machine performance but also in design and health monitoring.

The current topics of this development include flexible multibody dynamics, contact problems, real-time simulation, algorithms, control, and high performance computing. Furthermore, connections with other fields are made, for example: biomechanics, mechatronics, robotics, and optimizations. Some approaches for the dynamic analysis of machines include dynamic performance evaluation and experimental validation.

Safety and stability in machine operations are highly necessary in the machine performance of today. The combined approach of numerical simulation with multibody dynamic analysis, experimental validation on scale models and measurement and monitoring in the practical machine systems can be very beneficial in the development of machine manufacture.

In this special issue of Machine, the current development of the multibody dynamics for machine industry will be introduced from the viewpoint of design, dynamic analysis, health monitoring and others. Novel developments will also be welcome.

Prof. Dr. Yoshiaki Terumichi
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Machines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.


Keywords

  • multibody systems,
  • computational dynamics for machines
  • modeling and formulation
  • flexible body
  • contact and impact
  • numerical methods

Published Papers (3 papers)

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Research

2936 KiB  
Article
Dynamic Contact between a Wire Rope and a Pulley Using Absolute Nodal Coordinate Formulation
by Shoichiro Takehara, Masaya Kawarada and Kazunori Hase
Machines 2016, 4(1), 4; https://doi.org/10.3390/machines4010004 - 21 Jan 2016
Cited by 12 | Viewed by 6570
Abstract
Wire rope and pulley devices are used in various machines. To use these machines more safely, it is necessary to analyze the behavior of the contact between them. In this study, we represent a wire rope by a numerical model of a flexible [...] Read more.
Wire rope and pulley devices are used in various machines. To use these machines more safely, it is necessary to analyze the behavior of the contact between them. In this study, we represent a wire rope by a numerical model of a flexible body. This flexible body is expressed in the absolute nodal coordinate formulation (ANCF), and the model includes the normal contact force and the frictional force between the wire rope and the pulley. The normal contact force is expressed by spring-damper elements, and the frictional force is expressed by the Quinn method. The advantage of the Quinn method is that it reduces the numerical problems associated with the discontinuities in Coulomb friction at zero velocity. By using the numerical model, simulations are performed, and the validity of this model is shown by comparing its results with those of an experiment. Through numerical simulations, we confirm the proposed model for the contact between the wire rope and the pulley. We confirmed that the behavior of the wire rope changes when both the bending elastic modulus of the wire rope and the mass added to each end of the wire rope are changed. Full article
(This article belongs to the Special Issue Advance in Multibody System Dynamics)
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556 KiB  
Article
Examination of Particle Behavior in Container on Multi-Particle Collision Damper
by Yoshihiro Takahashi and Mika Sekine
Machines 2015, 3(3), 242-255; https://doi.org/10.3390/machines3030242 - 28 Aug 2015
Cited by 4 | Viewed by 4685
Abstract
Recently, impact dampers have been used to decrease the vibrations of objects. One specific case of a damper is a container filled with many spherical particles. Compressive forces, frictional forces, and impacts are generated between particles and the wall. Therefore, it is important [...] Read more.
Recently, impact dampers have been used to decrease the vibrations of objects. One specific case of a damper is a container filled with many spherical particles. Compressive forces, frictional forces, and impacts are generated between particles and the wall. Therefore, it is important to clarify the flow conditions of particles in order to investigate the appropriate damping conditions. However, it is difficult to experimentally observe and to calculate the complex behavior of particles in such a container. In this study, the behaviors of particles in a container of a particle damper were examined through experiments using piezoelectric elements and simulations performed by the discrete element method (DEM). Many spherical particles fill a container. The container is made to periodically move in a horizontal direction. The relationships between the collision of particles with the wall and the voltage value from the piezoelectric element were examined. With these calculations, particle behaviors and particle conditions can be analyzed. The behaviors of simulated particles were similar to those of experimental results. From both results it is shown that an appropriate selection of the filling ratio and of particle size will lead to the effect of particles for damping. Full article
(This article belongs to the Special Issue Advance in Multibody System Dynamics)
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2198 KiB  
Article
Design and Programming for Cable-Driven Parallel Robots in the German Pavilion at the EXPO 2015
by Philipp Tempel, Fabian Schnelle, Andreas Pott and Peter Eberhard
Machines 2015, 3(3), 223-241; https://doi.org/10.3390/machines3030223 - 25 Aug 2015
Cited by 24 | Viewed by 8382
Abstract
In the German Pavilion at the EXPO 2015, two large cable-driven parallel robots are flying over the heads of the visitors representing two bees flying over Germany and displaying everyday life in Germany. Each robot consists of a mobile platform and eight cables [...] Read more.
In the German Pavilion at the EXPO 2015, two large cable-driven parallel robots are flying over the heads of the visitors representing two bees flying over Germany and displaying everyday life in Germany. Each robot consists of a mobile platform and eight cables suspended by winches and follows a desired trajectory, which needs to be computed in advance taking technical limitations, safety considerations and visual aspects into account. In this paper, a path planning software is presented, which includes the design process from developing a robot design and workspace estimation via planning complex trajectories considering technical limitations through to exporting a complete show. For a test trajectory, simulation results are given, which display the relevant trajectories and cable force distributions. Full article
(This article belongs to the Special Issue Advance in Multibody System Dynamics)
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