实验报告正文.doc

实 验 报 告 实验名称______________________ 课程名称_______________________ 院 系 部: 专业班级： 学生姓名： 学 号: 同 组 人: 实验台号: 指导教师： 成 绩： 实验日期: 华北电力大学 机组模型建立： 机组的基本参数设置如下： GENERAL CHARACTERISTICS OF ROTOR AND TURBINE Rotor diameter 80 m Number of blades 3 Teeter hinge No Hub height 61.5 m Offset of hub to side of tower centre 0 m Tower height 60 m Tilt angle of rotor to horizontal 4 deg Cone angle of rotor 0 deg Blade set angle 0 deg Rotor overhang 3.7 m Rotational sense of rotor, viewed from upwind Clockwise Position of rotor relative to tower Upwind Transmission Gearbox Aerodynamic control surfaces Pitch Fixed / Variable speed Variable Diameter of spinner 2.5 m Radial position of root station 1.25 m Extension piece diameter 1.9 m Extension piece drag coefficient 0.8 Cut in windspeed 4 m/s Cut out windspeed 25 m/s BLADE GEOMETRY Blade length 38.75 m Pre-bend at tip 0 m Pitch control Full span Blade Mass Integrals (No ice) Blade Mass 6546.72 kg First Mass Moment 84218.6 kgm Second Mass Moment 1.785E+06 kgm2 Blade inertia about shaft 2.006E+06 kgm2 HUB MASS AND INERTIA Mass of hub 14000 kg Mass centre of hub 0 m Hub inertia: about shaft 12000 kgm2 perpendicular to shaft 0 kgm2 Total Rotor Mass 33640.2 kg Total Rotor Inertia 6.029E+06 kgm2 TOWER DETAILS Station Number Height (m) Diameter (m) Mass/unit length (kg/m) Stiffness (Nm2) 1 -15 3.5 2935.71 2.46E+11 2 15 3.19231 2214.09 1.43E+11 3 35 2.88462 1492.47 7.81E+10 4 50 2.73077 1131.66 5.65E+10 5 60 2.6 824.972 4.22E+10 Total Tower Mass 143777 kg Total Turbine Mass 249417 kg Drag coefficient for tower 0.6 Environment Offshore Mean sea depth 10 m Marine growth density 0 kg/m3 Hydrodynamic drag coefficient 1 Hydrodynamic mass coefficient 2 NACELLE GEOMETRY Nacelle width 2.5 m Nacelle length 6 m Nacelle height 2.5 m Nacelle drag coefficient 1.6 NACELLE MASS Nacelle mass 7200