噪声与振动控制
譟聲與振動控製
조성여진동공제
NOISE AND VIBRATION CONTROL
2014年
5期
114-116
,共3页
振动与波%多轴%风电叶片%振动特性%疲劳加载
振動與波%多軸%風電葉片%振動特性%疲勞加載
진동여파%다축%풍전협편%진동특성%피로가재
vibration and wave%multi-axis%wind turbine blade%vibration performance%fatigue loading
多轴疲劳加载可使风电叶片各截面的试验载荷更等效实际所受疲劳载荷，缩短试验周期。针对风电叶片双轴疲劳加载系统，建立系统的动力学模型，列出动力学方程，再对振动体的运动轨迹仿真求解，得出运动轨迹图形。在此基础上，分析系统出现机电耦合的原因。利用试验装置验证，为多轴疲劳系统的应用提供理论依据及试验验证，也为后续的风电叶片疲劳加载试验打下基础。
多軸疲勞加載可使風電葉片各截麵的試驗載荷更等效實際所受疲勞載荷，縮短試驗週期。針對風電葉片雙軸疲勞加載繫統，建立繫統的動力學模型，列齣動力學方程，再對振動體的運動軌跡倣真求解，得齣運動軌跡圖形。在此基礎上，分析繫統齣現機電耦閤的原因。利用試驗裝置驗證，為多軸疲勞繫統的應用提供理論依據及試驗驗證，也為後續的風電葉片疲勞加載試驗打下基礎。
다축피로가재가사풍전협편각절면적시험재하경등효실제소수피로재하，축단시험주기。침대풍전협편쌍축피로가재계통，건립계통적동역학모형，렬출동역학방정，재대진동체적운동궤적방진구해，득출운동궤적도형。재차기출상，분석계통출현궤전우합적원인。이용시험장치험증，위다축피로계통적응용제공이론의거급시험험증，야위후속적풍전협편피로가재시험타하기출。
Multi-axial fatigue loading can make the load in the sections of wind turbine blade to approach the real fatigue load condition and shorten the test period. In this paper, the dynamics model of the biaxial fatigue loading system for the wind turbine’s blades test is built. According to the kinetics equation, the trajectory of the vibrating body is simulated and the diagrams of the trajectory are drawn. On this basis, the cause of the electro-mechanical coupling phenomenon of the system is analyzed and then validated by experimental testing. This work provides a theoretical basis and an experimental reference for the application of multi-axial fatigue system to the fatigue loading test for wind turbine blades.
