2nd generation wobble watercraft

• Autorzy: Urbánek M. , Jánská D. , Mašek M. , Folgar Ribadas H. , Nový Z.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The main objective of the present work was to develop a new type of human-powered watercraft for sports activities on still water bodies, such as reservoirs and lakes. Design/methodology/approach: The power for the watercraft is provided by the body of its operator who sets the propulsion mechanism in oscillating or rocking motion. The oscillating or rocking motion of the mechanism is transmitted to underwater propelling elements. A prototype has been built and tested. A computer model of this craft was constructed using Solidworks 2014 CAD tool and strength verification calculations were carried out in MSC.MARC software. Findings: The prototype consists of a float in the form of a surfboard and a moving mechanism which incorporates a welded high-strength aluminium alloy frame. Great effort was put into finding an appropriate shape of the propelling element. Practical implications: Multiple elements of various shapes and sizes have been tested. Their verification with the aid of CFD analysis in Xflow software was followed by physical testing. Originality/value: Once the suitable type, shape and size of the propelling element were identified, the elements were applied to the craft. Successful testing of these 2nd generation prototypes was completed this year.

Słowa kluczowe

EN

wobble; vessel; CFD analysis; testing of prototype; sport; fun

PL

kołysanie; jednostka pływająca; analiza CFD; testowanie prototypu; sport; zabawa

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2015
• Tom: Vol. 73, nr 2
• Strony: 185--189
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Urbánek M.

• COMTES FHT a.s., Prumyslova 995, Dobrany, 334 41, Czech Republic

autor

Jánská D.

• COMTES FHT a.s., Prumyslova 995, Dobrany, 334 41, Czech Republic

autor

Mašek M.

• COMTES FHT a.s., Prumyslova 995, Dobrany, 334 41, Czech Republic

autor

Folgar Ribadas H.

• COMTES FHT a.s., Prumyslova 995, Dobrany, 334 41, Czech Republic

autor

Nový Z.

• COMTES FHT a.s., Prumyslova 995, Dobrany, 334 41, Czech Republic

Bibliografia

• [1] I. Poláková, T. Kubina, Flow stress determination methods for numerical modelling, METAL 2013, TANGER, 273.
• [2] J. Džugan, R. Procházka, P.Konopík, Micro-Tensile Test Technique Development and Application to Mechanical Property Determination, Small Specimen Test Techniques, 6th, STP 1576, Mikhail A. Sokolov and Enrico Lucon, Eds. ASTM International, West Conshohocken, PA 2014, 12-29.
• [3] P. Podaný, J .Dzugan, J. Vacík, Construction of Hammer for Sugarcane Shredder, Advanced Materials Research, 811 (2013) 308-313.
• [4] P. Konopik, J. Dzugan, M. Rund, Dynamic Tensile and Micro-Tensile Testing Using Dic Method, Metal 2014, Brno, Czech Republic, 52-59.
• [5] P. Kubík, F. Šebek, J. Petruška, J .Hůlka, J. Růžička, M. Španiel, J. Džugan, A .Prantl, Calibration of Selected Ductile Fracture Criteria Using Two Types of Specimens, Key Engineering Materials 592-593 (2013) 258-261.
• [6] S. Kroták, B. Mašek, M. Urbánek Use the hydroforming by produced the pad for extreme carving, The 22nd DAAAM International World Symposium, Austria, Vienna, 1278-8.
• [7] https://en.wikipedia.org/wiki/Water_ball
• [8] http://www.water-bird.eu/manuals/manual_en.pdf
• [9] http://www.xflowcfd.com/technology/view/cfd