Wind power spindle forging is one of the core components that play an important role in transferring torque and supporting blades in wind power generating units. By studying its dynamic characteristics and model verification, we can better understand its stress, vibration characteristics and ability to cope with external excitation. This paper will focus on the dynamic characteristics of wind power spindle forgings and related model validation methods, with a view to providing expertise in this field.
First, dynamic characteristics analysis of wind power spindle forging:
- Force analysis: First of all, the force analysis of the wind power spindle forging needs to be carried out, including the static load, dynamic load and torque imposed on the spindle. By considering the size of the wind, blade load and other external factors, the stress of the spindle forging under different working conditions is determined.
- Vibration characteristics analysis: The spindle forging will produce vibration during operation, so the vibration characteristics need to be analyzed. Numerical simulation methods, such as finite element analysis, can be used to calculate the natural frequency and modal morphology of the spindle, and then understand the vibration mode and frequency response of the spindle forging.
- Dynamic response analysis: The dynamic response of spindle forgings under external excitation is another key issue. The dynamic response of spindle forgings subjected to external excitation of different frequencies, amplitudes and directions is studied by numerical simulation or experimental test to evaluate its anti-vibration performance.
Second, the model verification method of wind power spindle forging:
- Experimental test: By building the corresponding experimental platform, the mechanical properties of the wind power spindle forging are tested. Vibration measurement system or accelerometer can be used to monitor and record the vibration response of spindle forging under different working conditions in real time to verify the accuracy of the model.
- Comparison of numerical simulation and measured data: The data obtained from the actual test is compared with the numerical simulation results. Error evaluation methods, such as root-mean-square error or maximum deviation, can be used to measure the consistency and accuracy between the measured data and the numerical simulation results.
- Fault case analysis: Combined with the fault case of the wind power spindle forging, the fault mode verification of the model is carried out. The accuracy and reliability of the model in revealing the failure mechanism and failure mode of spindle forging were evaluated by comparing the actual fault situation with the predicted results of the model.
Through the above dynamic characteristics analysis and model verification methods, the information of force, vibration characteristics and dynamic response of wind power spindle forging can be more comprehensively understood. It has important guiding significance for design optimization, structural reliability evaluation, fault diagnosis and prevention. However, in practical applications, it is still necessary to further strengthen the correlation between the theoretical model and the actual working conditions, and constantly improve the accuracy and reliability of the model to meet the needs of the wind power generation field.
