GrabCAD - Alstom Challenge Submission

March 25, 2018 0 Comments

Hi everyone!

As promised I will make a post regarding Creating Machines submission on Alstom Engineering challenge promoted by GrabCAD !
This is the last day for ideas submission and a lot of cool stuff is already submitted!
So, lets start explaining the main objective of the contest. The objective is to reduce the weight and the manufacturing cost of the CVS and battery box support that already exists on Metropolis City Train. You need to accomplish the Norms given (challenge´s attached documentation) and use only the available volume (restricted volume also in the attached documentation).

Now lets go to my idea. 

This structural support is a welding construction based on the design of some building and bridge structures and on some aircraft structures as well.
Every component is made of laser cutting sheet metal parts. The material can be normal S235JR Steel but for more resistance other materials can be used, for example S275J2G3 or S355J2G3 (1.0570). 











The thickness of the main body is 6mm. Lower the thickness of the main body can surely be possible and lower the total weight can be achieved, but I really think that a total weight of 28,8kg is way better when compared to the actual support weight (56,5kg). 

A complete set has a total of 144 kg (Alstom´s actual set has 282,5kg), there is no need to change the bolt joint support on the train solebar and it fits perfectly on the available volume. 





The welded construction can take more time but on the other hand, combined with folded sheet metal steel makes it more stable and reliable. With some changes on the design it can also be used riveted connections like it is used on bridges and skyscraper construction or even on aircraft Industry.

The design accomplishes the standard Norms (EN12663; EN61373; Alstom Standard ENG-STD-003; EN 45545-2).



Unfortunately, due to lack of time is impossible to present more variations to this design, but I’m extremely happy with this design in particular and with the overall result and I really believe that this structure is something that can be putted on practice and has a realistic vision on which design, safety and overall feasibility is concerned.

For more detailed information about the contest and to see other submissions go to: https://grabcad.com/challenges/redesign-the-structural-support-of-the-metropolis-metro-underframe


All 3D files are available for download here on Creating Machines, just go to the Downloads field on the very top of the Blog. 










Filipe Araújo

Technical drawer since 2004 and Mechanical Design Engineer since 2009. Worked in the Automotive Stamping Tool Industry followed by Pump and Hydraulik Machinery Industry, as well in Industrial Automation Machinery. Several Freelance works as Product Designer.

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