高速三体船片体构型数学表达和兴波阻力计算

摘要

High speed trimarans,with their excellent performance in drag reduction,sea-keeping and sta⁃bility,have wide application outlook in both military and civil markets. Despite the fact that high speed tri⁃marans have already been widely applied globally,their wave-making resistance forecast,a key factor in the design process,have not been so rigorously investigated. This paper employs the tent function to design the demihull structure of high speed trimarans,through which a variety of ship form parameters are calcu⁃lated. Moreover,the improved linear wave-making resistance calculation algorithm is adopted,and the ob⁃tained results for high speed trimarans are compared with model test results,which validate the proposed method in the preliminary design stage.%　　高速三体船以其优良的减阻性能、耐波性和稳性而具有广阔的军事和商业应用价值。尽管已有大型实船付诸应用，但高速三体船型的兴波阻力预报和减阻设计问题并未解决，而这又是高速三体船实际应用的重要环节。采用帐篷函数法进行高速三体船的片体构型设计，并据此计算各船型参数。将改进的线性兴波阻力数值算法应用于高速三体船的兴波阻力计算，根据模型试验结果，验证了计算方法的有效性。