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Maißer, P.; Enge, Olaf; Freudenberg, Heiko; Kielau, G.

doi:10.1023/a:1009729120459

Cited by 44 publications

(13 citation statements)

References 5 publications

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“…2). The multibody models were created in the alaska 2.3 simulation tool [22]. The multibody models of the NEOPLAN DMA trolleybus are formed by 54 rigid bodies mutually coupled by 63 kinematic joints.…”

Section: Multibody Models Of the Trolleybusmentioning

confidence: 99%

Influence of tire inflating pressure at dynamic forces acting on articulated trolleybus

Polach

2017

MATEC Web Conf.

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Abstract. ŠKODA VÝZKUM s.r.o. cooperated on the development of the NEOPLAN DMA low-floor articulated trolleybus intended for the Boston city. Multibody models and finite element models of the trolleybus were utilized in the stage of the vehicle design. At the end of the stage of computer modelling and testing of the trolleybus prototype a decision to reduce tire inflating of vehicles in serial production (together with the change the type of shock absorbers used in trolleybus suspension) was made. The impact of this change on forces acting in the trolleybus suspension elements (i.e. in air springs and shock absorbers) and radius rods on the trolleybus chassis when running on an uneven test track was investigated using multibody simulations. Time histories of the forces calculated utilising multibody models were used as input data of the trolleybus finite element models.

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Section: Multibody Models Of the Trolleybusmentioning

confidence: 99%

Influence of tire inflating pressure at dynamic forces acting on articulated trolleybus

Polach

2017

MATEC Web Conf.

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“…The spatial multibody models of the control assembly were created in the alaska 2.3 simulation tool [12] on the basis of the technical documentation and drawings provided by the control assembly producer ŠKODA JS a.s. (the Czech Republic). As it has been already mentioned, the first one is intended mainly for the simulations of the rod control cluster assembly drop during the seismic event [11] (model 1), where the significant measured and computed quantity is the total time of the drop, and the second one for investigating limit curves of deformations of fuel assembly guide tubes [13] (model 2), at which the absorber rods still reach lower part of the core.…”

Section: Multibody Models Of the Control Assemblymentioning

confidence: 99%

“…The impact (normal) forces are introduced in the control assembly multibody model as the applied forces. Their instantaneous value is (instead of formula (3)) given by the bistop function [12]. After introducing axis u, direction of which is given by connecting point 0 (centre of the circular hole) and instantaneous position of contact point K, and independent variable u in its direction, impact (normal) force is calculated using the bistop function ( ) …”

Section: Modelling Of Contacts and Impactsmentioning

confidence: 99%

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Approaches to the Creation of Multibody Models of the Vver 1000 Nuclear Reactor Control Assembly

Polach¹,

Hajžman²

2016

Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016)

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“…In order to obtain a tool for dynamic analysis (e.g. [4]) multibody models of the bus were created using the alaska simulation tool [7]. The aim of the simulations with the verified TriHyBus multibody models is the calculation of courses of kinematic and dynamic quantities giving information about the investigated properties of the vehicle at selected operational situations.…”

Section: Introductionmentioning

confidence: 99%

Modified Approach to the Simulations of Bus Driving Tests

Polach

Václavík

2016

AMM

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The Triple Hybrid Hydrogen Bus project comprises research and development, implementation and a test operation of a city bus with hybrid electric propulsion using hydrogen fuel cells. The mass distribution and the total bus mass are rather different from common buses. This is, among others, the reason for investigating the bus driving stability. In order to obtain a tool for dynamic analysis, multibody models of the bus were created. Verification of multibody models was performed based on the comparison of simulation results and experimental measurements focused on handling behaviour of the bus. To perform the simulations two approaches were used. The first (original) one, at which the initial position of the bus multibody model at the beginning of the simulation of the manoeuvre depends on the bus motion trajectory, and the second (new) one, at which the initial position of the bus multibody model at the beginning of the simulation of the manoeuvre is set an equilibrium position.

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Untitled

Cited by 44 publications

References 5 publications

Influence of tire inflating pressure at dynamic forces acting on articulated trolleybus

Influence of tire inflating pressure at dynamic forces acting on articulated trolleybus

Approaches to the Creation of Multibody Models of the Vver 1000 Nuclear Reactor Control Assembly

Modified Approach to the Simulations of Bus Driving Tests

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