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The purpose of this paper is to present the design process and subsequent numerical analysis calculations of a new roof-mounted bicycle carrier for vehicles. The bicycle carrier is mounted on the vehicles longitudinal bars. The designed construction is subjected to both static and dynamic load sets to check if it meets the requirements of ISO 11154 norm – which specifies the minimum safety requests for roof load carrier intended for mounting on the roof of passengers cars and light commercial vehicles with a maximum authorized total mass up to 3,5t. To fulfil the specifications associated to safety, standards and traffic laws test four different software packages were used: CATIA V5 and NACA airfoil generator for designing, Cambridge Engineering Selector for choosing the most suitable materials and Abaqus CAE for Finite Element Analysis.

This paper presents the methodology for assessing the process of designing and constructing vehicles and machines, which implements Design for Six Sigma tools. An important purpose of this paper is to determine how defects affect the quality of the structure, based on the criteria of its conformance. The paper also presents the requirements needed to implement the method and the benefits arising from the use of quality assessment tools. The presented method enables the quality assessment of the design and construction process, which also serves as quality assurance method due to the possibility to avoid potential defects.

The rotation joint of the single-bucket excavator body consists of a torque slewing bearing subjected to a compound set of loads. Component elements of this joint form a coherent system, therefore independent selection of individual elements is not possible. The article describes the application of the finite element method for obtaining a solution, along with a description of how an appropriate model is to be built. It also presents and discusses sample results.

Designing a telescopic jib mounted on a mobile platform requires a range of calculations, including jib profile selection, definition of the stable area of operation etc. These calculations can be supplemented by FEM strength analysis, which allows for quicker construction design optimization.