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Dr. Markus Wenin
CPE Computational Physics and Engineering

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0 Solid State Physics
0 Theoretical physics
0 Computational mechanics
0 Mathematical modelling
0 Computational modeling

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Journal article
Published: 09 March 2021 in Sustainability
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In this paper, we present a successful experimental validation of the velocity optimization for a cable car passing over a support. We apply the theoretical strategy developed in a previous work, refined by taking into account in a simple manner the hauling cable dynamics. The experiments at the ropeway Postal–Verano (South Tirol, Italy) have shown a significant reduction of the pendulum angle amplitude for both the descent and the ascending rides, as predicted from simulations. Furthermore, we measured a smoother progress of the torque at the driving engine during the vehicle support crossings.

ACS Style

Markus Wenin; Siegfried Ladurner; Daniel Reiterer; Maria Bertotti; Giovanni Modanese. Validation of the Velocity Optimization for a Ropeway Passing over a Support. Sustainability 2021, 13, 2986 .

AMA Style

Markus Wenin, Siegfried Ladurner, Daniel Reiterer, Maria Bertotti, Giovanni Modanese. Validation of the Velocity Optimization for a Ropeway Passing over a Support. Sustainability. 2021; 13 (5):2986.

Chicago/Turabian Style

Markus Wenin; Siegfried Ladurner; Daniel Reiterer; Maria Bertotti; Giovanni Modanese. 2021. "Validation of the Velocity Optimization for a Ropeway Passing over a Support." Sustainability 13, no. 5: 2986.

Chapter
Published: 06 March 2020 in Advanced Structured Materials
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The dynamics of ropeway vehicles of an aerial ropeway is investigated experimentally by a set of measurements including velocities of the hauling cable at the driving disk and the running gear and time-dependent deviation angles of the hangers. A measurement of the damping characteristics of vehicle oscillations shows that both damper and friction resistance at the bolt play a role regarding the dynamics of a ropeway vehicle passing a support. The results allow the development of accurate computational tools for future simulation tasks.

ACS Style

Siegfried Ladurner; Markus Wenin; Daniel Reiterer; Maria Letizia Bertotti; Giovanni Modanese. Experimental Investigation of the Dynamics of a Ropeway Passing Over a Support. Advanced Structured Materials 2020, 61 -69.

AMA Style

Siegfried Ladurner, Markus Wenin, Daniel Reiterer, Maria Letizia Bertotti, Giovanni Modanese. Experimental Investigation of the Dynamics of a Ropeway Passing Over a Support. Advanced Structured Materials. 2020; ():61-69.

Chicago/Turabian Style

Siegfried Ladurner; Markus Wenin; Daniel Reiterer; Maria Letizia Bertotti; Giovanni Modanese. 2020. "Experimental Investigation of the Dynamics of a Ropeway Passing Over a Support." Advanced Structured Materials , no. : 61-69.

Chapter
Published: 27 June 2019 in Advanced Structured Materials
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In this work we discuss the problem of finding an optimal shape of a cable ropeway support head using optimization techniques. We define a cost function and relevant constraints with the goal to minimize the oscillations of the vehicle when it crosses the support, valid for both driving directions. Our findings reveal potential for practical use by extending Computer Aided Engineering tools by taking this optimization procedure into account.

ACS Style

M. Wenin; Andreas Windisch; S. Ladurner; M. L. Bertotti; G. Modanese. Optimization of the Head Geometry for a Cable Car Passing over a Support. Advanced Structured Materials 2019, 231 -241.

AMA Style

M. Wenin, Andreas Windisch, S. Ladurner, M. L. Bertotti, G. Modanese. Optimization of the Head Geometry for a Cable Car Passing over a Support. Advanced Structured Materials. 2019; ():231-241.

Chicago/Turabian Style

M. Wenin; Andreas Windisch; S. Ladurner; M. L. Bertotti; G. Modanese. 2019. "Optimization of the Head Geometry for a Cable Car Passing over a Support." Advanced Structured Materials , no. : 231-241.

Journal article
Published: 03 October 2018 in European Journal of Mechanics - A/Solids
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In this paper, we present a theoretical model that solves the problem of minimization of aerial ropeway vehicle oscillations that are induced as the vehicle passes over a support. The task is formulated as an inverse problem, where the vehicle oscillations are minimized by an appropriate choice of the velocity profile of the hauling cable. We study two general cases numerically, a single vehicle system (FUNIFOR), as well as a classical aerial ropeway with two vehicles. In both cases we find optimal velocity profiles that show a considerable improvement of the oscillatory behavior of the vehicles as compared to constant velocity profiles and optimal profiles that have been obtained analytically by loosening some of the constraints for the system. In addition to a minimization of the vehicle oscillations, we also optimize the time that elapses as the vehicle is hauled through the system. We believe that this exploratory study lays a sound basis for various possible future studies and practical applications (Computer Aided Engineering).

ACS Style

M. Wenin; A. Windisch; S. Ladurner; M.L. Bertotti; G. Modanese. Optimal velocity profile for a cable car passing over a support. European Journal of Mechanics - A/Solids 2018, 73, 366 -372.

AMA Style

M. Wenin, A. Windisch, S. Ladurner, M.L. Bertotti, G. Modanese. Optimal velocity profile for a cable car passing over a support. European Journal of Mechanics - A/Solids. 2018; 73 ():366-372.

Chicago/Turabian Style

M. Wenin; A. Windisch; S. Ladurner; M.L. Bertotti; G. Modanese. 2018. "Optimal velocity profile for a cable car passing over a support." European Journal of Mechanics - A/Solids 73, no. : 366-372.

Chapter
Published: 20 May 2018 in Advanced Structured Materials
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In the dynamic behaviour of a cable railway oscillations of cables and cars play an important role. We present a simple model to describe and investigate oscillations of a cable, spanned over a support and charged with an arbitrary number of point loads with arbitrary masses. We construct a time-dependent propagator, which contains the full intrinsic information of the mechanical system and represents a linear map between the initial state, t = 0 (initial condition of a set of linear differential equations) and the state at a time t. We consider undamped and damped oscillations, where damping is introduced by a phenomenological way (Onsager’s lineare ansätze). A numerical example is given.

ACS Style

Markus Wenin; Michael Irschara; Stephan Obexer; Maria Letizia Bertotti; Giovanni Modanese. Cable Railway Simulation: A Two-Span Oscillator Model. Advanced Structured Materials 2018, 65 -79.

AMA Style

Markus Wenin, Michael Irschara, Stephan Obexer, Maria Letizia Bertotti, Giovanni Modanese. Cable Railway Simulation: A Two-Span Oscillator Model. Advanced Structured Materials. 2018; ():65-79.

Chicago/Turabian Style

Markus Wenin; Michael Irschara; Stephan Obexer; Maria Letizia Bertotti; Giovanni Modanese. 2018. "Cable Railway Simulation: A Two-Span Oscillator Model." Advanced Structured Materials , no. : 65-79.

Book chapter
Published: 31 July 2016 in Advanced Structured Materials
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Planning a cable railway is a complex task. One has to take into account many aspects and an optimal solution is not well defined. The calculation of the cable configurations for given support positions, cable pretension and cable types however is rather formalizable and presents a direct problem. In this research work we study the first steps to solve the inverse problem: computation of optimal support positions for a given support cable type and cable car mass. We define an appropriate cost functional (objective function) with several constraints and use numerical minimization strategies to obtain optimal solutions.

ACS Style

H. Thaler; M. Wenin; J. Brunner; D. Reiterer; M. L. Bertotti; G. Modanese; E. Oberhuber. Numerical Optimization in Ropeway Planning. Advanced Structured Materials 2016, 113 -124.

AMA Style

H. Thaler, M. Wenin, J. Brunner, D. Reiterer, M. L. Bertotti, G. Modanese, E. Oberhuber. Numerical Optimization in Ropeway Planning. Advanced Structured Materials. 2016; ():113-124.

Chicago/Turabian Style

H. Thaler; M. Wenin; J. Brunner; D. Reiterer; M. L. Bertotti; G. Modanese; E. Oberhuber. 2016. "Numerical Optimization in Ropeway Planning." Advanced Structured Materials , no. : 113-124.