The study of static and dynamic stiffness characteristics of wind power spindle forging is to study the stiffness performance of wind power spindle forging under static and dynamic conditions. Wind power spindle forgings are generally made of high-strength alloy steel and withstand the rotation and load of the wind turbine, so their stiffness characteristics are crucial to ensure the normal operation of the wind turbine and improve its performance.
Static stiffness refers to the stiffness performance of wind power spindle forging without external dynamic load. The static stiffness of wind power spindle forging under different working conditions can be measured by static load test, including axial stiffness, radial stiffness and torsional stiffness. These data have important reference value for structural design, wind load and seismic load of wind turbine.
Dynamic stiffness refers to the stiffness performance of wind power spindle forging under the action of dynamic load. Through modal analysis and vibration test, the dynamic stiffness characteristics of wind power spindle forging under different frequencies can be obtained, including natural vibration frequency, vibration mode and damping ratio. These data are of great significance for evaluating the dynamic response of wind turbines and preventing resonance and fatigue failure.
The static and dynamic stiffness characteristics of wind power spindle forging need to be studied by combining test and numerical analysis. The displacement, stress and frequency response were measured by designing and manufacturing samples under different loads. At the same time, by means of finite element analysis and other numerical simulation methods, the force and stiffness of the spindle forging are analyzed and predicted. Through the comprehensive test and numerical analysis results, the static and dynamic stiffness characteristics of wind power spindle forgings can be fully understood, which provides scientific basis for optimizing the design of spindle forgings and the working stability of wind turbines.
