Abstract No. C171128-073

Author name(s): Kui WANG, Jingjin DONG, Yanbing WANG

Company: China Shipbuilding Power Engineering Institute Co., Ltd., China

It is necessary to check the fatigue stress of the weld seam of the engine frame in the design stage of the two-stroke low speed marine engine. According to the design specification of IIW, the fatigue strength of the weld seam in the key area of main bearing block was evaluated by combining finite element calculation with hot spot method. The evaluation results provide a basis for the reliability of the design, and provide a reference value for the subsequent test.

KEY WORDS: low speed diesel engine; IIW; weld seam fatigue; hot spot method

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