Dynamic performance optimization model of involute spur gear profile modification
Based on the dynamic and static characteristics, the optimization model of tooth profile modification is established, and the optimization design […]
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Comparison of Dynamic Characteristics of Different Friction Models of Gears Excited by Different Factors
First, the differences of gear dynamic characteristics with different friction models are discussed.Figures 1 and 2 show the time and […]
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Time-varying meshing stiffness and friction arm of gear driven by different factors
The fluctuation of gear meshing stiffness is an important excitation source for gear vibration. Accurate calculation of gear meshing stiffness […]
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6-DOF Gear Dynamics Model
In order to study the comprehensive influence of meshing force and friction force on tooth surface, a simplified dynamic model […]
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Gear engagement process analysis
Firstly, the engagement process of the gear is analyzed. The engagement state and force diagram of the gear is shown […]
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The influence of the modification quantity on the dynamic load of the involute spur gear under different modification types
Analyze the time-domain curve of meshing stiffness and meshing force of the gear under the optimal modification amount, and compare […]
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The influence of the modification quantity on the dynamic load of the involute spur gear under different modification types
The modification length is 2.8mm, the change range of modification amount is [0, 0.05mm], and the value interval is 0.02mm. […]
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Types of profile modification for involute spur gear drive system
There are many types of profile modification curves. According to the different functional forms of the modification quantity with respect […]
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Effect of Center Support Stiffness of Gear Drive System on Dynamic Load under Steady State Conditions
The center support stiffness is selected according to the allowable deflection of the drive shaft. The center support stiffness meets […]
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Impact test of coal mill gear
Cut and process the inspection gear along the axial direction and about 1/4 diameter into U-type impact test specimen, and […]
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Experimental results and data processing of shot peening on bending fatigue properties of gear materials
1. Group test results Data of fatigue test results obtained by group method of shot peened gear and non shot […]
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Test of shot peening on bending fatigue property of gear material
1. Test method The bending fatigue test fixture of gear material adopts the single tooth loading method shown in Figure […]
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Effect of shot peening on bending fatigue of gear material
Bending fatigue performance is an important index to evaluate the bearing capacity of gears. Shot peening is an effective way […]
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Comparison and Analysis of Different Dynamic Modes of Gear Drive System under Steady State Conditions
In the nonlinear dynamic model of yaw-torsion coupling, there are two main factors affecting the yaw vibration, i.e. the bias […]
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Metallographic Structure Analysis of Coal Mill Gear
Metallographic structure evaluation of failed gears is carried out according to national inspection standards.The metallographic observation is etched with 4% […]
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Effect of Tooth Tip Circular Radius of Spiral Bevel Gear on Tooth Root Bending
There are three aspects to consider when designing the tip radius: (1) No interference occurs in the running process of […]
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Tooth surface equation of bevel gear without backlash
Take the point on the center line as the coordinate origin, fix the base vectors of the coordinate systems S0 […]
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Effect of Variation of Tooth Thickness of Helical Bevel Gear on Stress of Gear Pair
Tooth thickness is an important parameter for balancing the fatigue life of large and small wheels.Since the number of small […]
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Research on Nonlinear Dynamics of Involute Spur Gear Drive System
Nonlinear dynamic model of yaw-torsion coupling was established for involute spur fixed-shaft gear drive and planetary gear drive respectively, and […]
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Design example of bevel gear tooth surface without backlash
Use CAD software to build accurate 3D model of linear bevel gear pair, as shown in the figure. By substituting […]
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Profile of bevel gears with concave convex contact surface without backlash
The tooth profile of the driving and driven section of the linear gear pair is shown in the figure. The […]
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Fatigue bearing capacity of helical bevel gears
Bending fracture of teeth and pitting and flaking of tooth surface are the two most common failure modes of main […]
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Research on Nonlinear Dynamics of Involute Spur Gear Drive System
Nonlinear dynamic model of yaw-torsion coupling was established for involute spur fixed-shaft gear drive and planetary gear drive respectively, and […]
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Analysis on the coincidence degree of bevel gears without backlash
The linear gear can also improve the transmission stability by increasing the degree of coincidence. The calculation formula of line […]
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Establishing conjugate contact line of bevel gear without backlash
Establish the right-hand coordinate system, as shown in Figure 1. S (o-xyz) and S (oxpypzp) are the main and driven […]
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Special testing principle of vibration of fixed-shaft gear drive system
(1) Acceleration signal testing principle A three-way acceleration sensor is installed at 180 degrees intervals on the same circumference of […]
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Research on Nonlinear Dynamics of Involute Spur Gear Drive System 2
Nonlinear dynamic model of yaw-torsion coupling was established for involute spur fixed-shaft gear drive and planetary gear drive respectively, and […]
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Optimization of tooth profile modification for helical gears to reduce impact of meshing
1 Construction of modified tooth surface The modified tooth surface is constructed by superposition of theoretical tooth surface and modified […]
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Innovation in Research on Nonlinear Dynamics of Involute Spur Gear Drive System
The innovations of the research work can be summarized as follows: (1) The coupling relationship between the acting direction of […]
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Research on Nonlinear Dynamics of Involute Spur Gear Drive System 1
Nonlinear dynamic model of yaw-torsion coupling was established for involute spur fixed-shaft gear drive and planetary gear drive respectively, and […]
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Calculation of Rolling Impact of Helical Gear
The calculation of impact force in this paper is based on the principle of energy conservation at the moment of […]
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Analysis on Dynamic Characteristics of Gears with Different Machining Dynamic Balance Accuracy
Balancing is a process that improves the mass distribution of the rotor to ensure that the vibration or vibration force […]
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Different gear machining accuracy of vehicle gear drive system
In theory, the higher the gear machining accuracy level, the better the dynamic performance of the gear drive system, but […]
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Dynamic Stress of Drive Shaft of Vehicle Gear Drive System
The bending and torsional vibration displacements of the concentrated mass points on each drive shaft obtained by simulation are taken […]
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Bearing Support Reaction of Vehicle Gear Drive System
Bearing is the main component connecting the gear drive system and the box. Under the action of bearing support reaction, […]
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Load sharing factor of vehicle gear planetary drive
Under gear 1-8, the load-sharing coefficient of the loaded planetary row is shown in the figure, in gear 1-4, the […]
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No load gear dynamic load of vehicle gear transmission system
Previous studies have shown that the sound pressure of air radiation generated by no-load knocking of gears is proportional to […]
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Effect of Tooth Side Clearance and Center Distance Deviation of Involute Spur Gear on Dynamic Load
In gear meshing drive, in order to avoid jamming, clearance between tooth profiles must be left, which is an important […]
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Two parameter optimization design of involute straight tooth profile modification
The modification parameters of the two gears are the same, the value range of the modification amount is [0, 0.022mm], […]
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Time-varying meshing stiffness calculation of gear with cracks
Gao Yun used the finite element method to analyze the stress of gear, determined the position of the maximum principal […]
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Influence of Modification Types on Static Characteristics of Involute Spur Gear Drive System
The modification quantity is 0.22mm and the length is 2.8mm. The modification types are linear modification, parabolic modification and conic […]
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Effect of Profile Modification of Involute Spur Gear on Tooth Strength
In the research of tooth profile modification, the influence of tooth profile modification on the strength of gear teeth is […]
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Effect of profile modification on dynamic load of involute spur gear under different profile modification lengths
With parabolic modification, the dynamic load coefficient changes with the modification amount under different modification lengths as shown in the […]
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The influence of the modification amount on the dynamic load of the involute spur gear transmission system with different modification length
Linear modification is adopted, and the value range of modification amount is [0, 0.05mm], and the value interval is 0.002mm. […]
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Modified tooth surface of helical gear under heavy load
TE at small wheel φ1A is smaller than LTE under larger load, indicating that the gap between teeth is not […]
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Test principle for vibration characteristics of planetary gear drive system
(1) Ring gear root strain test principle Eight teeth are selected as measuring points on the end face of ring […]
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Influence of External Load Change of Involute Spur Gear Transmission on Static Characteristics of Modified Gear
Linear modification is adopted with the modification quantity of 0.022m m and the length of 2.8m M. Fixed torque of […]
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Influence of Modification Length of Involute Spur Gear Drive System on Static Characteristics
Linear shape modification is adopted with the amount of 0.022mm. The value range of the length of the modification is […]
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Influence of Modification Amount on Static Characteristics of Involute Spur Gear Drive System
Linear shape modification is adopted with the length of 2.8mm and the value range of modification is [0.01mm, 0.09mm]. The […]
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Calculation of meshing stiffness and relative speed of helical gear meshing points
The meshing stiffness of the rodent point can be calculated by LTCA. The basic idea is to increase the load […]
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Profile modification length of involute spur gear drive system
In the research of profile modification based on static characteristics, the selection criteria of profile modification length mostly adopt the […]
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Research on Dynamic Characteristics of Gear Drive System under Steady State Conditions
Steady state condition refers to the condition under which the vehicle travels at a constant speed in a certain position […]
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Analysis Method for Nonlinear Dynamic Characteristics of Involute Spur Gear
There may be four kinds of motion forms in gear transmission non-linear system: periodic motion, double periodic motion, quasi-periodic motion […]
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Effect of No-load Speed of Involute Spur Gear on Dynamic Load
Under no-load condition, gear has two-sided impact phenomena and frequently falls out of teeth. Maximum dynamic meshing force and root […]
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Time-varying meshing stiffness calculation of healthy gears
The potential energy method is used to solve the time-varying meshing stiffness of gears.Each tooth is considered as a variable […]
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Research on characteristics of gear knocking under no-load condition
To simulate the no-load knocking characteristics of gears, an angular acceleration excitation is applied in the torsional direction of the […]
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Effect of Center Distance Deviation of Gear Drive System on Dynamic Load under Steady State Conditions
During machining and assembling of gear drive system, there is deviation between actual and theoretical center distance of gear due […]
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Effect of Engine Speed of Gear Drive System on Dynamic Load under Steady State Conditions
Under steady-state conditions, the engine speed range of heavy-duty vehicles studied ranges from 1000 r/min to 4200 r/min.Under full throttle […]
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Research on Dynamic Characteristics of Involute Spur Gear Drive System
Vibration characteristics of two-stage fixed-shaft gear drive system and single-stage planetary gear drive system were tested, and the correctness of […]
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Modeling of gear drive system with cracks
The centralized parameter method is used to establish the dynamic model of gear transmission system.This method has a small amount […]