Simulation analysis method of vibratory response of variable working condition single-stage heavy gear case containing crackle fault

Abstract

The invention relates to a simulation analysis method of the vibratory response of a variable working condition single-stage heavy gear case containing a crackle fault, which comprises the following steps: establishing a gear pair 3D solid model containing a crackle fault on the basis of 3D design software SolidWorks; leading the model into finite element analysis software ansys, programming a program capable of calculating the gear meshing rigidity of any meshing positions by combining menu operations of the ansys and APDL languages and outputting a result data file of the meshing rigidity; establishing a damping gear case system kinetic model of 8 degrees-of-freedom and kinetic simultaneous differential equations considering factors of the rigidity and the damping of a shaft and the case, an input torque and a load torque of a motor, and the like and utilizing MATLAB to solve the equations so as to simulate the system vibratory response of the single-stage heavy gear case containinga crackle fault. The invention integrates the advantages of the SolidWorks, the ansys and the MATLAB and can quickly and accurately simulate the vibratory responses of variable working condition heavy single-stage heavy gear cases containing various different forms of crackle faults.

Description

Simulation analysis method of vibration response of single-stage heavy-duty gearbox with crack fault technical field The invention relates to a vibration response simulation analysis method, in particular to a vibration response simulation analysis method of a single-stage heavy-duty gearbox under variable working conditions with crack faults. Background technique Gearbox transmission system for large-scale heavy-duty equipment (such as wind power generation speed-increasing gearbox, blast furnace bellless top airtight box, steelmaking converter transmission system, cement mill transmission equipment, port ship unloader transmission system, portal crane Transmission equipment, ladle rotating tower power transmission equipment, rod and wire roughing mill gear box, etc.) are the key equipment of complex systems and major facilities in modern industry. If an unexpected accident occurs, a chain reaction will occur, which will seriously affect the production and economic benefit...

AI Technical Summary

Problems solved by technology

Using the finite element method to solve the meshing stiffness of gears has its unique advantages; however, the current mainstream finite element analysis software (such as ansys) is used in solid modeling, especially when modeling complex situations such as gears with different types of crack faults. have great limitations

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