Relative displacement analysis of Spur Planetary Gear
As shown in the figure, the relative position relationship of each gear is in the meshing state. (1) Projection of […]
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Kinematic analysis of Spur Planetary Gear
In order to carry out dynamic analysis of the system, this section first analyzes the acceleration of each component in
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Equivalent dynamic model of Spur Planetary Gear
As shown in the figure is the translation torsion coupling dynamic model of the spur gear transmission system established in
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Establishment of equivalent dynamic model of Spur Planetary Gear
The model of gear transmission system is the expression of system mechanics and mathematics, and is the basis of gear
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Damping coefficient of Spur Planetary Gear
Damping is an important introduction in the study of gear system dynamics. Because the damping value of gear system meshing
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Meshing phase calculation of Spur Planetary Gear
The meshing phase relationship of planetary gears can be determined according to the position angle of planetary gears and the
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Comprehensive meshing error of spur gear and planetary gear
In the process of actual processing and installation of gears, it is inevitable to produce a variety of errors. These
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Hertz contact stiffness of inner gear and outer gear of Spur Planetary Gear
According to Hertz law, the elastic compression of two isotropic elastic bodies can be described by two projectile near the
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Backlash of Spur Planetary Gear
As shown in Fig. 1, the sketch of gear meshing pair with backlash is used to reserve the side clearance
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Equation of FH hypoid gear tooth surface cutter head
Face milling (FM) and face hobbing (FH) are widely used in machining bevel gears, hypoid gears and other complex curved
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Calculation of meshing frequency of Spur Planetary Gear
The meshing frequency of gears refers to the meshing times of teeth in unit time. For NGW type planetary gear
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Calculation of related parameters of Spur Planetary Gear System
As shown in the figure is the structural diagram of the straight gear planetary gear transmission system. The planetary carrier
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Dynamic model of planetary gear speed increasing system
In terms of theoretical analysis, the theoretical basis of gear system dynamics has gradually developed from the earliest impact theory
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Equation of hypothetical profile of FH hypoid gear
The imaginary profile wheel is composed of the path of the blade in the virtual machining process, and the number
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Analysis of surface roughness of spiral bevel gear near pits by femtosecond laser ablation
The surface roughness Ra near the ablation pit can objectively reflect the micro geometric characteristics of the ablated material surface.
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Experimental analysis of femtosecond laser ablation topography of spiral bevel gear
After femtosecond laser micromachining the tooth surface, optical microscope dmm-300c was used to observe the characteristics of ablation ring morphology
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Numerical solution and simulation analysis of spiral bevel gear
The finite difference method is used to solve the two temperature equation. The laser pulse width is 800 FS, and
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Energy coupling model for femtosecond laser ablation of spiral bevel gears
In the study of femtosecond laser ablation of 20CrMnTi gear material, the two temperature model is used to study the
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Spiral bevel gear material and femtosecond laser ablation mechanism
20CrMnTi, commonly used material for spiral bevel gears, is a kind of good carburizing steel with high impact toughness, high
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Comparison and analysis of time-varying meshing stiffness of helical gears
According to the international standard of iso6336-1-2006, the average meshing stiffness of a gear is regarded as the total stiffness
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Total time-varying meshing stiffness of helical gears
According to the above-mentioned time-varying meshing stiffness equation of helical gear, the contact line of helical gear pair is used
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Validation of finite element method for helical gear time varying meshing stiffness
In order to study the time-varying meshing stiffness of helical gears, a three-dimensional model is established by three-dimensional software, and
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Boundary conditions between sliced gears
When calculating the meshing stiffness of helical gear by slicing method, because the tooth surface of helical gear is helical,
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Helical gear contact line
When a pair of helical gears are engaged, the contact line of the two gear surfaces is a straight line
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Gear tooth matrix stiffness
In the process of gear meshing, the time-varying meshing stiffness is mainly related to the meshing force and deformation of
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Establishment of stiffness equation of helical gear under spalling fault
The tooth spalling model is shown in Figure 1, where SH is the depth of tooth spalling, SL is the
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Time varying meshing stiffness principle of helical gear
When the potential energy method is used to solve the time-varying meshing stiffness of spur gear, the meshing stiffness mainly
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Meshing stiffness analysis of time-varying Gears Considering Different spalling shapes
With the rapid development of wind power technology in recent years, improving the working performance of wind turbine is gradually
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Influence of process parameters on gear rolling process
In order to analyze the influence of rolling process parameters on rolling process, orthogonal test method was used to analyze
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Analysis of gear rolling process
The rolling process is divided into four stages: initial feeding stage, gear dividing stage, continuous feeding rolling stage and shaping
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Finite element parameter setting of gear rolling process
According to the characteristics of roll forming process, the finite element analysis model is established, and the process simulation parameters
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Analysis on vibration characteristics of gear transmission system with root crack and bearing compound fault
1) Root crack and inner and outer raceway failure of bearing Figure 1 shows the frequency domain diagram of bearing
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Comparison of vibration characteristics of gear transmission system under different conditions
As shown in figure (a) is the time domain diagram of the displacement and vibration analog signal of the driving
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Unit contact line load of helical gear
Calculation of contact line length of helical gear The length of contact line of helical gear has a great influence
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Calculation of engagement length and coincidence degree based on helical gear
1.Actual meshing line length of tooth profile In the transmission process of helical gear, the meshing line of tooth profile
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Vibration characteristics of gear pitch error
Single tooth pitch error (1) Time domain characteristics The existence of single tooth pitch error will lead to the problem
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Research on contact degree and unit contact line load based on helical gear
Helical gear is widely used in high-speed and heavy-duty transmission because of its smooth transmission, strong bearing capacity, low noise,
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Time domain and frequency domain characteristic analysis of gear typical machining errors
Gear is the core component in the field of power transmission. It is widely used in automobile, aerospace, ship and
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Typical machining error of gear
Single tooth pitch error Single tooth pitch error refers to the arc length dimension deviation of two adjacent teeth on
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Dynamic model and solution of gear transmission system
At present, there are more researches on the vibration of gear pair under the action of nonlinear excitation, and there
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Calculation formula of standard involute spur gear
Based on the energy method, the relationship between the z-contact stiffness, bending stiffness, shear stiffness, radial compression deformation stiffness and
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Vibration analysis of gear pair with root crack
The vibration response of gear pair with root crack is shown in Fig. 1: there are three abrupt peaks in
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Vibration analysis of normal gear pair
Figure 1 shows the displacement response of the normal driving wheel in the 𝑦 direction: the time interval between two
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Dynamic model of gear pair
In this paper, a pair of involute spur gear pairs are regarded as composed of mass block, spring and resistance
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Time varying meshing stiffness difference of gear pair with root crack
Assuming that the crack fault occurs on the gear teeth of the driving wheel, different types of root crack models
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Time varying meshing stiffness of gear pair with root crack
The root crack will directly change the effective cross-sectional area and moment of inertia of the simplified cantilever model of
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Calculation of comprehensive engagement rigidity of transmission gear
The potential energy obtained by the comprehensive energy method is: Hertz contact potential energy, bending potential energy, shear deformation potential
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Calculation of Flexible Deformation Stiffness of Gear Drive System Base Matrix
When calculating time-varying meshing stiffness of gear pair by energy method, the gear base is assumed to be rigid, while
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Gear drive system bending stiffness, shear stiffness and radial compression stiffness calculation
According to the energy method, the bending potential energy, shear deformation energy and radial compression deformation energy are also stored
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Vibration analysis of gear pair with root crack
Based on the time-varying meshing stiffness of the involute spur gear pair, the dynamic model of the gear pair is
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Calculation of Hertz contact stiffness of gears
When the energy method is used to calculate the time-varying meshing stiffness of gears, it is assumed that the meshing
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Time varying meshing stiffness of normal gear pair
Gear pair is the core component of gear transmission system, and time-varying meshing stiffness is the main excitation source of
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Unit contact line load of helical gear
Calculation of contact line length of helical gear The length of contact line of helical gear has a great influence
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Calculation of engagement length and coincidence degree of helical gears
Actual length of meshing line of tooth profile In the process of gear transmission, the meshing line of tooth profile
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Vibration reduction effect of tooth surface modification on two stage high speed helical gear transmission
In order to test the vibration reduction effect of two-stage high-speed helical gear transmission after modification, and to compare the
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Vibration reduction effect of tooth surface modification on single stage high speed helical gear transmission
In order to test the vibration reduction effect of single-stage high-speed helical gear transmission after modification, the time-varying meshing stiffness
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Effect of tooth surface modification on load distribution of high speed helical gear
The gear contact analysis is carried out by using romax software, and the normal load per unit length of the
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Influence of tooth surface modification on load transmission error of high speed helical gear
In the gear transmission system, the ideal gear will drive according to the constant transmission ratio. However, in practical engineering,
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Influence of tooth surface modification on vibration characteristics of high speed helical gear transmission
Vibration and noise reduction of electric vehicle reducer is an important part of vehicle design, and reasonable tooth surface modification
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Influence of tooth surface modification on vibration characteristics of high speed helical gear transmission
Vibration and noise reduction of electric vehicle reducer is an important part of vehicle design, and reasonable tooth surface modification