Abstract: 1Application of multidisciplinary design optimization to hull seagoing performance design…CHEN Wei,YANG Xianghui,QIU Liaoyuan(1)2Analysis of the characteristics and methods of ship topside design …WAN Li,LV Jiefeng,XU Sheng(6)3Analysis of the hull form and sailing characters in calm water of a semi-planing wave-piercing boat… WEI Chengzhu,MAO Lifu,LI Yinghui,et a(l 16)4Effects of bilge keel on a one-thousand-ton deep-vee monohull with calm water resistance and rolling motion…FU Jiangyan,CHEN Wei,GE Huixiao,et a(l 22)5Motion performance of different types of semisubmersible platforms in deep water… ZHANG Wenxu,LU Chao,LI Yajun,et a(l 27)6Simulation of the towed body under turning and retraction…MA Wenbin,XIANG Zuquan,MAO Yunsheng(34)7Stress analysis of the opening area of the ship integrated superstructure based on surrogate models… ZHANG Feng,HE Shutao,LIU Jun,et a(l 41)8Deformation and strength characteristics of hybrid sandwich composite structures under static pressurein deep water environment …WU Dajiang,MEI Zhiyuan,ZHOU Xiaosong(47)9Topology optimization of ship bracket structures …CHENG Yuansheng,LIU Tiantian,LIU Jun(53)10Wave impedance characteristic analysis of composite wave impedance techniques…LIN Yongshui,WU Weiguo(59)11Free vibration analysis of rectangular stiffened plates with several lumped mass… LI Kai,HE Shutao,QIU Yongkang,et a(l 66)12The calculation model and experimental verification of ship's double-layer vibration isolation systemsbased on TPA …XU Jianlong,XU Rui,PENG Liguo(71)13Numerical simulation of the open water performance of parameter matching of B series tandem propellers… HU Junming,LI Tieli,LIN Yan,et a(l 76)14Numerical simulation of the tip leakage flow in a ducted propulsor based on the RANS method… RUAN Hua,ZHANG Zhirong,XIN Gongzheng(83)15Contrast experiments on the propeller noise of the Kappel propeller and the conventional propeller…SONG Han,WANG Rui,XIONG Ying(92)16Design and optimization of the throttle orifice of marine boiler feed recycling pipes …YANG Yuanlong(99)17Design study of the draining system of steam power ships… SONG Zhenguo,XIE Xiao,CHEN Rugang,et a(l 104)18Experimental study of shock waves on the ship air inlet device …WANG Minghe,LIU Jianjun(110)19Simulation and experimental investigation of an extra-high pressure pneumatic blowing valve basedon AMESim …XIA Ji,LIAO Yide,YANG Ka(i 117)20Simulation analysis of warship deploy ability with maintenance structures involved… LI Xuanchi,HU Junbo,ZHANG Zhihua(123)