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System equation of spur gear pair

The dynamic model of 8-DOF spur gear pair is established by Lagrange equation. The system equation is: Where: FM is the dynamic meshing force of spur gear; RB1 and Rb2 are the radii of the driving wheel and the driven wheel respectively; IF1 and IF2 are the moment of...

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Flash temperature model of spur gear pair

For tooth surface contact temperature: Δ T. Mainly determined by the temperature of spur gear body Δ M and tooth surface flash temperature Δ F is composed of two parts, namely: Spur gear body temperature Δ M is generally assumed to be constant, and the tooth surface temperatures of...

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Calculation of elastic deformation of spur gear teeth

From the previous analysis, as long as the elastic deformation of the gear teeth is obtained, the time-varying meshing stiffness can be determined. Therefore, we first discuss the calculation method of comprehensive elastic deformation of spur gear teeth. Spur gear teeth can generally be treated as simple plane mechanical...

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Basic principle of time-varying meshing stiffness of spur gear

The dynamic excitation caused by the time-varying characteristics of meshing stiffness during gear meshing is called stiffness dynamic excitation of gear meshing, also known as stiffness excitation. This kind of excitation is one of the most important and basic dynamic excitation in gear transmission system. This section will explain...

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Spur gear finite element method

Since the early 1970s, people have begun to use the finite element method to calculate the elastic deformation and tooth root stress of spur gear teeth. At first, it is mainly to calculate the deformation value of single tooth under load. Later, after a large number of finite element...

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