Stiffness of spur gear elastohydrodynamic friction pairs
In the elastohydrodynamic state, the elastic approaching amount of the contact body is a comprehensive result of the change in […]
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Calculation of Profile Modification Element Values for Spur Gears Based on ISO Standards
Three elements of spur gear modification: maximum modification amount of tooth profile Δ Max, straight tooth profile modification length L, […]
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Power loss of oil stirring in gearbox of wheel drive system of electric vehicle
The oil mixing loss of the gearbox mainly comes from the friction loss between the lubricating oil and the internal […]
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Calculation of contact fatigue life of high-speed helical gears in electric vehicles
Miner’s linear cumulative damage rule believes that under the repeated action of a given stress level, the damage and stress […]
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Fatigue performance curve of high-speed helical gear of electric vehicle
The S-N curve of the target helical gear is obtained from the S-N curve of the helical gear material, which […]
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Contact stress spectrum of high-speed helical gears in electric vehicles
According to practical experience, contact fatigue often occurs in transmission gears. The table shows the basic parameters of the high-speed […]
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Calculation of highly modified cylindrical spur gear transmission
Taking a pair of small gears and large gears meshed by cylindrical spur gears as an example, it is known […]
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Case study on meshing stiffness of involute spur gears
To verify the effectiveness of the method, the method that considers the true transition curve but does not modify the […]
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Simulation analysis of dynamic temperature field of planetary gear system
The calculation of heat flow density and convection heat transfer coefficient will be used as the input heat source and […]
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Calculation of adhesion wear on helical gear tooth surface
During the meshing transmission of helical gear pairs, sliding wear occurs due to the relative sliding of the tooth surfaces. […]
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Simulation Test and Research Bench for Vibration Reduction Structure of Spur Gear Slotted Holes
Gear Number of teeth z Modulus m/mm Modification coefficient x pressure angle α (/ °) Tooth top height coefficient hα* […]
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Analysis of Gear Meshing Range and Signal to Noise Ratio for Cylindrical Spur Gears
The angular acceleration amplitude at the meshing frequency is taken as the evaluation index of the system, and the angular […]
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Bending Strength Calculation of Heavy Duty Gear Rack Root
For the calculation of heavy load large module gear and rack drive, there are many literature research calculation methods, some […]
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Analysis of the influence of center distance deviation on meshing stiffness and transmission error of spur gears
Since the rigid body shell of the inner ring of the spur gear driving wheel is fully constrained, the theoretical […]
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Orthogonal experimental design of cylindrical gear vibration reduction structure
Number Factor/mm Level 1 Level 2 Level 3 A（a1） Groove width 0.2 0.3 0.4 B（a2） Lateral clearance 0.2 0.07 -0.03 […]
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Simulation analysis and calculation process of cylindrical gear meshing dynamics
Convert the cylindrical gear pair established by UG to X_ T intermediate format, and then import it into the dynamics […]
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Tooth profile design of heavy-duty gear rack
The gear rack with large module and heavy load is not suitable for the conventional hobbing and slotting processing method. […]
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Verification of spur gear meshing simulation results with center distance deviation
The total meshing force F of a spur gear pair in the direction of the meshing line can be expressed […]
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Analysis of Dynamic Resonance Rotational Speed of Spur Gear Pair
The main excitation in a spur gear pair system comes from gear tooth meshing. When the meshing frequency of the […]
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Maximum tooth root bending stress and tooth surface contact stress of spiral bevel gears with different installation errors
The maximum values of tooth root bending stress and tooth surface contact stress under different axial installation errors of spiral […]
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Establishment of spur gear meshing model with center distance deviation
In order to study the impact of different center distance deviations on the stiffness of a gear tooth during a […]
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Calculation Principle of Spur Gear Meshing Stiffness and Natural Frequency
The time-varying meshing stiffness of spur gears is one of the main factors that cause impact and noise in spur […]
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Influence of installation error of shaft intersection angle on meshing characteristics of spiral bevel gears
The influence of the installation error of the shaft intersection angle on the engagement mark of the spiral bevel gear […]
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Influence of load on meshing characteristics of spiral bevel gears
When the rated load of small module spiral bevel gear pair is 3 N · m, the instantaneous contact ellipse […]
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Contact analysis model of spiral bevel gear under loading
Table 1 shows the basic geometric parameters of the double double sided method small module spiral bevel gear pair. According […]
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Mathematical model of double double face spiral bevel gear tooth surface
The double faced normal spiral bevel gear pinion uses a double faced cutter head. The schematic diagram of the normal […]
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Parametric modeling for reverse measurement of double circular arc gear
Measure the gear module. Take the effective meshing section of the gear and establish a section parallel to the end […]
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Parametric modeling scanning for reverse measurement of double circular arc gear
Taking the worn double circular arc gear shaft of the pumping unit reducer as the object, the gear design is […]
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Modeling of double circular arc gear
In actual machining, the normal tooth profile of double circular arc gear is circular arc. Therefore, the end face profile […]
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Reverse measurement principle of double circular arc gear
There is less wear on the tooth root and tooth top during gear operation. On this basis, the reverse engineering […]
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Strength simulation evaluation of hypoid gears with super reduction ratio
The stress analysis of hypoid gear with super reduction ratio is carried out through the finite element software Ansys Workbench. […]
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Meshing simulation evaluation of hypoid gears with super reduction ratio
According to the established finite element simulation model of hypoid gear with super reduction ratio, the Transient structural module is […]
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Parameter design of hypoid gear with super reduction ratio
As shown in the figure, the geometric relationship of hypoid gear pitch cone is shown. The pitch circle radius r1 […]
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Influence of Geometric Parameters of Friction on Helical Gear Meshing Surface
Tooth width and helix angle are the main parameters that affect the time-varying contact line of helical gears. Figure 1 […]
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Influence of Friction Parameters on Helical Gear Meshing Surface
Tooth surface roughness and lubricating oil viscosity are the main factors that affect the friction coefficient of tooth surface. Through […]
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Simulation Analysis of Friction Factor of Helical Gear Meshing Tooth Surface
With the same parameters, the average meshing efficiency obtained is compared with the results as shown in Figure 1. It […]
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Calculation of Helical Gear Meshing Efficiency
The instantaneous meshing efficiency of helical gears is defined as: Where, Tp and Tg are the torque of main and […]
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Calculation of Friction Factor of Helical Gear Meshing Tooth Surface
In the process of helical gear meshing, the friction coefficient of tooth surface will change significantly with the change of […]
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Calculation of Time varying Contact Line Length of Helical Gear Meshing Surface
As shown in Figure 1, the length of the contact lines on the left and right sides of the pitch […]
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Contact Modal Analysis of Gleason Spiral Bevel Gear
Generally, the vibration of low-order natural frequency has a great impact on the dynamic performance of the structure, while the […]
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Calculation of Time varying Friction Excitation on Helical Gear Meshing Surface
It can be seen from Figure 1 that the relative sliding directions on both sides of the pitch line on […]
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Sliding friction analysis of helical gear meshing tooth surface
According to the meshing principle of helical gears, when a pair of helical gears enter into meshing and exit from […]
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Experimental results and analysis of vibration characteristics of planetary gears
The sampled signals are analyzed and processed in DH5922 dynamic signal test and analysis system software of Donghua Test. Figure […]
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Simulation analysis of vibration characteristics of planetary gears
As shown in Figure 1, the vibration acceleration in X, Y and Z directions at the selected nodes with input […]
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Mathematical model of planetary internal gear tooth profile
According to the principle of gear engagement, the mathematical model of the planetary gear internal gear profile can be described […]
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Mathematical model of planetary gear tooth profile
The external gear coordinate system S1: O1-x1y1 is established according to the parameters of the linear profile gear, as shown […]
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Rigid flexible coupling dynamic model of planetary gear mechanism
In the process of the above planetary gear mechanism simulation and analysis, the gear ring needs to be generated into […]
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Model of crack failure of planetary gear
Taking the crack fault of planetary gear as an example, the simulation analysis is carried out. Before simulation analysis, it […]
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Three dimensional gear model of planetary gear mechanism
The planetary gear mechanism of an automobile is composed of a sun gear, three planetary gears, a gear ring and […]
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Case Analysis of the Mathematical Model of Spur Gear Actual Coincidence
Take the traction spur gear of a certain type of locomotive as an example to calculate the actual coincidence before […]
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Design of planetary gear transmission structure of manipulator
In general, the underactuated manipulator driven by motor usually uses the dynamic coupling effect to realize the underactuated form of […]
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Parameter design of hypoid gear with super reduction ratio
As shown in the figure, the geometric relationship of hypoid gear pitch cone is shown. The pitch circle radius r1 […]
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Self service method results of spiral bevel gears
The same batch of spiral bevel gears with the same spiral bevel gear material, CNC milling method and heat treatment […]
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Precise detection of spiral bevel gear
Under the condition of the same batch of spiral bevel and spiral bevel gears with the same spiral bevel gear […]
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Load characteristic analysis of tractor gear power output transmission system
In order to study the influence of rotary tillage working load on the power output transmission system, the tractor gear […]
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Simulation test verification of tractor gear dynamics model
To verify the accuracy of the model, the simulation results are compared with the test data in the time domain […]
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Influence of meshing impact time on vibration characteristics of high speed helical gear transmission
In order to qualitatively study the influence of meshing impact time on the vibration characteristics of helical gear transmission, the […]
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Vibration response of high speed helical gear drive under meshing impact excitation
In order to study the vibration characteristics of the system under separate excitation of meshing impact, the meshing impact curve […]
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Vibration Response of High Speed Helical Gear Transmission Excited by Time varying Meshing Stiffness
Input the obtained time-varying meshing stiffness curve into the dynamic equations, obtain the vibration response of single-stage helical gear transmission […]
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Vibration Characteristics of High Speed Helical Gear Transmission Excited by Time Varying Meshing Stiffness
The calculated vibration accelerations in all directions of the helical gear are combined into “relative vibration accelerations a in the […]