This work explains the development of a new structure for a rollover car washing machine based on anexisting model, named AquaStar. The design of the structure is an engineering systems problem that incorporatestechnical, production, and logistic constraints. The design objectives were to: (a) minimize manufacturing labour; (b)improve transportation and installation strategies; and (c) reduce weight/size. The new design concept is composed offeet, columns and upper-part modules and is made of standard galvanized beams/plates that allow quick and easyassembly and installation with less number of joints, which satisfies the constraints, and accomplish the objectives. Theresults show that the new structure is considerably lighter, smaller in size and requires much less manufacturinglabour/time without losing any functionality. This new design has an enhanced modularity meaning that almost allassemblies can be used interchangeably for different machine types. This works is expected to contribute to the overallknowledge of machine design in general and car washing machines in specific.
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