Abstract
A turntable ladder is an indispensable vehicle in fire and rescue work. Vibration on the top of the ladder is considerable when the ladder set is maximally extended. It induces the discomfort and unsafety for beings in the rescue cage. Aiming at the reduction of the vibration, in this study, one additional steel wire rope is assumedly added into each handrail of the ladder set. The steel wire ropes are suggested to be pre-tensioned before the turntable ladder works. This study is based on an available ladder set structure which includes three ladder sections with different area moments of inertia. Additionally, a ladder structure model is established as a multibody system dynamic model. The changes of kinetic parameters in the raising and lowering processes of the ladder set are investigated. The obtained results can be the fundamentals for modeling, experiments and applications of turntable ladders.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
M. J. Burman, S. E. Goodson and J. D. Aiken, Telescopic Aerial Ladders; Components; and Methods, US Patent, No. US 2009/0101436 A1, USA (2009).
E. Maaß, Feuerwehrleiter mit ausschiebbaren Leiterteilen, German Patent, No. DE000003326644C2, Germany (1992).
P. Keller, Leiteranordnung mit ausschiebbaren Leiterteilen, insbesondere Feuerwehrleiter, European Patent, No. EP000000244668A2, Germany (1987).
K. üller, Feuerwehrleiter mit ausschiebbaren Leiterteilen, German Patent, No. DE000004206448C2, Germany (1996).
Z. Shi, Q. Huang and S. Li, The optimized analysis of ladder structure of the aerial ladder truck, Appl. Mech. Mater., 494–495 (2014) 440–443.
H. Aschemann et al., Model based trajectory control of a flexible turntable ladder, Proc. Am. Control Conf., Anchorage, AK, USA (2002) 921–926.
A. Kharitonov, N. Zimmert and O. Sawodny, Active oscillation damping of the fire-rescue turntable ladder, 2007 IEEE Int. Conf. Control Appl., IEEE, Singapore (2007) 391–396.
N. Zimmert, A. Kharitonov and O. Sawodny, A new control strategy for trajectory tracking of fire-rescue turntable ladders, Proc. 17th World Congr. - Int. Fed. Autom. Control, Seoul, Korea (2008) 869–874.
A. Pertsch and O. Sawodny, Verteiltparametrische Modellierung und Regelung einer 60m-Feuerwehrdrehleiter, Automatisierungstechnik, 60 (9) (2012) 522–533.
N. Zimmert, A. Pertsch and O. Sawodny, 2-DOF control of a fire-rescue turntable ladder, IEEE Trans. Control Syst. Technol., 20 (2) (2012) 438–452.
S. Lambeck, O. Sawodny and E. Arnold, Trajectory tracking control for a new generation of fire rescue turntable ladders, 2006 IEEE Conf. Robot. Autom. Mechatronics, IEEE, Bangkok, Thailand (2006) 1–6.
A. Pertsch and O. Sawodny, Modelling and control of coupled bending and torsional vibrations of an articulated aerial ladder, Mechatronics, 33 (2016) 34–48.
J. A. Salmi, Aerial Ladder Tower with Pretensioned Truss Members, US Patent, No. 4852690, USA (1989).
K. Fujita et al., Multibody dynamics of the 2 sections flexible ladder model extending and retracting each other, ASME 2003 Int. Des. Eng. Tech. Conf. Comput. Inf. Eng. Conf., USA (2003) 583–591.
J. M. Gere, Mechanics of Materials, 6th Ed., Brooks/Cole-Thomson Learning, USA (2004).
P. Flores et al., Kinematics and Dynamics of Multibody Systems with Imperfect Joints: Models and Case Studies, Springer-Verlag Berlin Heidelberg, Heidelberg, Germany (2008).
J. Baumgarte, Stabilization of constraints and integrals of motion in dynamical systems, Comput. Methods Appl. Mech. Eng., 1 (1) (1972) 1–16.
P. E. Nikravesh, Computer-aided Analysis of Mechanical Systems, Prenticle-Hall, New Jersey (1988).
Belgo Bekaert Arames, Cimaf - Wire Rope Technical Manual, Brazil (2013).
J. Zhang, R. Perez and E. Lavernia, Documentation of damping capacity of metallic, ceramic and metal-matrix composite materials, J. Mater. Sci., 28 (9) (1993) 2395–2404.
K.-H. Wehking, W. Vogel and R. Schulz, Daempfungsverhalten von Drahtseilen, Foerdern und Heb., 49 (1/2) (1999) 60–61.
Author information
Authors and Affiliations
Corresponding author
Additional information
Recommended by Associate Editor Kyoung-Su Park
Van Tinh Nguyen is a lecturer of Construction Mechanical Engineering Faculty, National University of Civil Engineering, Vietnam. He has been a doctoral student at Technische Universität Dresden, Germany since 2014. His research interests are structural optimization, multi-body dynamics, vibration reduction for construction machinery, and development of new products serving in the field of construction mechanical engineering.
Thorsten Schmidt is a Full Professor at Technische Universität Dresden and heads the Chair of Logistics Engineering in the Mechanical Engineering Faculty since 2008. His research areas are the design and optimization of facility logistics and production systems including a focus on the machinery and involved components.
Thomas Leonhardt is a Research Assistant at the Chair of Logistics Engineering, Institute of Material Handling and Industrial Engineering, Technische Universität Dresden since 1991. He received his doctor’s degree in 1989. His current research areas are the design and dimensioning of machinery components for material handling systems, multi-body simulations, system analyses especially for cranes and conveying machines, and new solutions for industrial trucks.
Rights and permissions
About this article
Cite this article
Nguyen, V.T., Schmidt, T. & Leonhardt, T. Effect of pre-tensioned loads to vibration at the ladder tip in raising and lowering processes on a turntable ladder. J Mech Sci Technol 33, 2003–2010 (2019). https://doi.org/10.1007/s12206-019-0402-2
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12206-019-0402-2