The optimization of gearbox geometric design parameters to reduce rattle noise in an automotive transmission based on an empirical model approach is studied.
The optimization of gearbox geometric design parameters to reduce rattle noise in an automotive transmission based on a torsional vibration model approach is studied.
The optimisation of gearbox geometric design parameters to reduce gear-rattle noise in an automotive transmission based on a transmission error model is presented.
To separate the steady modulation caused by distributed fault and the impact modulation caused by impact fault, two sub-dictionaries are specially designed according to the gearbox operating and structural parameters and the characteristics of vibration signal.
To investigate pitting effects on vibration properties, vibration signals are simulated for a gearbox of which physical parameters are given in Table 1.
From the graphs, all the necessary parameters of the gearbox such as number of stages, modules, face width of gears, and shaft diameter can be derived.
Therefore, by optimizing the geometric parameters of the gearbox such as, the module, number of teeth, axial clearance, and backlash, it is possible to obtain a light-weight-gearbox structure and minimize the rattling noise.
Third, for each IMF, three multi-fractal feature parameters sensitive to gearbox faults were selected from the multi-fractal features, further constructing the multi-fractal fault feature vector.
The wind turbine is modelled using HAWC2 (Horizontal Axis Wind turbine simulation Code 2nd generation) and the gearbox is described using lumped parameters in MATLAB/Simulink.
By optimising the geometric parameters of the gearbox, such as the module, number of teeth, axial clearance, and backlash, it is possible to obtain a gear structure with high bending and contact strength and to minimise the torsional vibration, transmission error and gear-rattling noise.
