Method for determining transmission path of fault vibration signals of wind power gear box based on power flow finite element method
A wind power gearbox and transmission path technology, which is applied in the field of determining the transmission path of the fault vibration signal of the wind power gearbox, can solve the problems such as the inability to determine the fault vibration signal of the wind power gearbox, and achieves the effect of improving the applicability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
specific Embodiment approach 1
[0026] Specific implementation mode one: as figure 1 As shown, a transmission path determination method of wind power gearbox fault vibration signal based on power flow finite element method includes the following steps:
[0027] Step 1: According to the characteristics of wind power gearbox fault impact, determine the installation position of the sensor;
[0028] Step 2: Determine the transmission path of the fault vibration signal of the wind power gearbox according to the installation position of the sensor and the fault type;
[0029] Step 3: According to the transmission path of the wind power gearbox fault vibration signal determined in step 2, the calculation formula for the contribution of the transmission path of the fault vibration signal based on power flow is obtained;
[0030] Step 4: Establish a finite element model of the wind power gearbox, and use the finite element method to calculate the contribution of each transmission path;
[0031] Step 5: Sort the con...
specific Embodiment approach 2
[0032] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the specific process of determining the transmission path of the fault vibration signal of the wind power gearbox in the step 2 is as follows:
[0033] Step 21: Analyze the local peeling fault of the planetary gear, and determine the time-invariant transmission path of the fault vibration signal;
[0034] Step 22: Analyze the local peeling fault of the planetary gear, and determine the time-varying transmission path of the fault vibration signal;
[0035] Step two and three: analyze the local peeling fault of the outer ring of the planet carrier bearing, and determine the time-invariant transmission path of the fault vibration signal;
[0036] Step two and four: analyze the local peeling fault of the outer ring of the planet carrier bearing, and determine the time-varying transmission path of the fault vibration signal.
[0037] Other steps and parameters are the same as those in Embodiment 1...
specific Embodiment approach 3
[0038] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the specific process of obtaining the calculation formula of the contribution of the transmission path of the fault vibration signal based on the power flow in the step three is:
[0039] Step 31: Select the coupling points of each transmission path to obtain the energy transfer diagram of the wind power gearbox system and the energy transfer diagram of the passive subsystem;
[0040] Step 32: According to the energy transfer diagram of the wind power gearbox system and the energy transfer diagram of the passive subsystem obtained in step 31, find the fault vibration signal transmission path with the same energy transmission path;
[0041] Step 33: Obtain the power flow at the coupling point where the excitation originates from the passive subsystem and the energy retention factors of each transmission path in the working state;
[0042] Step 3 and 4: Obtain the cont...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More