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Enclosing and Mounting an Electronic Component on Articulated Haulers: A proposition on how to protect, and where to place, an intelligent node on the environmentally harsh exterior of construction equipment with respect to multiple parameters
Linköping University, Department of Management and Engineering, Machine Design.
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

As is the case with many other manufacturers of vehicles, Volvo Construction Equipment has a constantly increasing amount of electric and electronic equipment in their articulated haulers. These are of great use in modern machines, bringing functions, and safety that were not possible before, but they also bring more cables to handle.

In the case of the articulated haulers a quite thick cable harness of about 15 meters in length reaches from the driver’s cabin in the front to the components in the far back end of the vehicle. This is not only a lot of long cables to handle both during assembly and service, but the nature of signals traveling in cables is that the voltage gets weaker with distance. This phenomenon has to be accounted for by measuring devices dependent on the voltage.

It has been suggested that a device referred to as an intelligent node, or ICCS-module, which communicates digitally via CAN could be installed in the back of the articulated haulers. This module would be independent of the mentioned drop in voltage. The ICCS-module will be receiving a small bundle of cables being routed from the driver’s cabin. From it cables would go out to a majority of the components in its vicinity. The components connected to the node would not need to have any other cables.

This thesis is focused on the mechanical aspects of installing this ICCS-module. Having electric and electronic equipment on construction vehicles is a challenge when it comes to protecting the device from the harsh environment that is the hauler’s exterior. It will have to withstand being immersed in water for long periods of time, greatly varying temperatures, vibrations and shocks as well as being hit by projectiles. The placement as well as the design of the enclosure should be chosen with respect to both the devices length of life and how well it fulfils its intended role and achieves the expected results.

To produce an enclosure and find a placement aiming to satisfy these conditions, a traditional product development process were executed. The articulated haulers as well as relevant literature were researched. Concepts were generated and evaluated by both the author and by employees at Volvo Construction Equipment until a final concept for the enclosure and placement were found. The enclosure were then designed in detail specifying the material, manufacturing techniques, controlled for thermodynamic circumstances, modelled in Catia V5 and controlled for vibrations. It was concluded that the enclosure should be able protect the ICCS-module after some more development and that the placement and cable routing results in a much shorter total cable length.

Place, publisher, year, edition, pages
2016. , p. 142
Keyword [en]
ART, Articulated Hauler, Enclosing, Electric, Electronic, Sealing, Damping, Vibrations, Construction Equipment, CAN-bus, Product Development, Design, Thermodynamics, ICCS-module, CAD, E&E
Keyword [sv]
Dumprar, Dumper, Tätning, Inkapsling, Elektronik, Dämpning, Vibrationer, Vibrationsdämpning, Anläggningsutrustning, Konstruktion, Produktutveckling, Termodynamik, ICCS-modul, CAD, CAN-bus
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:liu:diva-134053ISRN: LIU-IEI-TEK-A--16/02701--SEOAI: oai:DiVA.org:liu-134053DiVA, id: diva2:1067247
External cooperation
Volvo Construction Equipment
Subject / course
Machine Design
Presentation
2016-11-18, 3C:817, Hus A, Campus Valla, 581 83 Linköping, 10:15 (Swedish)
Supervisors
Examiners
Available from: 2017-01-20 Created: 2017-01-20 Last updated: 2017-01-20Bibliographically approved

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