海上风力发电机组运输船全船有限元分析
毕业论文关键词：全船有限元分析；海上风力发电机组运输船；波浪载荷；强度计算评估；AbstractAt present, our country calls on all kinds of industries to develop green energy, andwind energy is one of the most commercial potential and vitality of the green energy, awide range of research and development and utilization of wind energy in many countriesaround the world. Especially in Europe and the United States, wind energy technologydevelopment and utilization of relatively mature, compared with onshore wind power,offshore wind energy resource is very rich, wind direction and stability, not occupation ofland resources, environmental impact of small advantages, and current development ofoffshore wind power is more rapid to fast the development of the offshore wind turbinetransport vessel.Offshore wind turbine transport ship structure forms a complex ship, the simple use ofthe cabin finite element and normative theory of empirical formula can not accuratelyreflect the total strength of the ship. So it is necessary for the whole ship structure of threedimensional finite element analysis of. According to the actual loading conditions,combined with longitudinal strength analysis, in order to ensure the ship economy, securityand integrity of the premise to solve the common calculation methods are difficult to solvepractical engineering problems.This paper carrrys on the simple introduction of the structure and features of theoffshore wind turbine transport vessel . According to the regulations of ChinaClassification Society, a 3D finite element model is established, and the ship building rulesare guided. Using three dimensional surface element method to realize the function of shipmotion and wave load transfer. Based on the Pearson moscowitzwave spectrum and theNorth Atlantic scatter plot, the long-term prediction results of wave loads under given loadconditions are obtained by using the spectral method. The vertical wave bending momentcalculated by the longitudinal strength is determined by the long-term prediction results.The dynamic pressure and inertia force induced by wave are calculated by the design wavemethod. Using PCL, the wave loads are loaded onto the full ship map. Inertial balancetechnology is a method to solve the weight balance of the whole ship. Through the analysisof the results ,the stress and the strain distribution of the ship are obtained.In this paper, the whole ship load wave load map, and directly involved in theapplication of hull longitudinal strength calculations, and then calculated results back toafter MSC / PATRAN in processing and analysis, the stress level of the transport ship andstrain distribution. The methods used herein for offshore wind turbine transport Boats FEMstrength assessment has important guiding significance and practical value, and itsconclusions on offshore wind turbine transport ship to assess the strength calculation hasimportant reference value.Keywords: FEM of whole ship; offshore wind turbine transport vessel; wave loads;strength evaluation;