engleski

Consideration of Safety Factors for Cyclic Stressed Machine Parts Calculated with FE Method - Case Study

Reliable design of machine parts (power machines, turbines, generators, motors, fans, pumps etc.) is based of good knowledge of loads, material characteristics, environmental conditions and predicted useful life of machinery. To be competitive on world markets, finite-life (safe-life) design should not be applied only to airplanes but also to power machinery. Namely, machines based on infinite life design are more heavy, more costly are noncompetitive. Choise of adequate stress calculation methods, knowledge of material bahaviour and adequate safety factors are essential steps in machine part design. Finite-life design is defined as life of machine part till crack initiation. High temperature machine components with creep bahaviour will not be considered.

cyclic stresses; finite life design; finite element calculation; safety factors

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