Test device and system for vibration characteristics of planetary gear drive system
Taking single-stage planetary gear drive as test object, vibration characteristics test is carried out on the special test bench for […]
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Dynamic Model of Involute Spur Gear Drive System Fixed Shaft Gear Drive System
The bearings and gears are simplified as concentrated mass points and the rolling bearings are simplified as isotropic elastic supports.A […]
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Data Processing Method for Strain Signal of Involute Spur Gear Drive System
1.The cut-off frequency of low-pass filtering for strain test data is 3kHz of sampling frequency of dynamic strain gauge. 2.As […]
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Effect of Gear Modification Coefficient on Gear Slip Rate
To analyze the influence of gear displacement coefficient, it should be divided into equal displacement, unequal positive displacement and unequal […]
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Comparative analysis of torsional shear stress of involute spur gear
According to the test results of torsional shear strain of drive shaft, the torsional shear stress is calculated by formula […]
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Effect of Helical Bevel Gear Cutter Modification on Tooth Root Bending Stress
In order to improve the bending strength of the small gear root, the heavy contact area is usually designed to […]
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Optimization of Spiral Bevel Gear Based on Tooth Height Factor
The tooth height coefficient of hypoid gear pair mainly includes working tooth height coefficient and tooth crest height coefficient, which […]
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Data Processing Method for Displacement Signal of Involute Spur Gear Drive System
The transverse displacement test principle of the drive shaft is shown in the figure.O-point is the center position of the […]
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Comparison and analysis of vibration and displacement of involute spur gear drive
According to the test results of transverse vibration displacement of transmission, the displacement of axle in test direction is calculated […]
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Effect of Gear Modulus and Pressure Angle on Gear Slip Rate
Figure 1 shows the variation trend of sliding rate with gear modulus in standard drives with the number of teeth […]
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Comparison and analysis of acceleration of involute spur gear drive system
Torsional angular acceleration of gears 1 and 4 can be obtained by substituting acceleration test results of each gear into […]
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Data Processing for Nonlinear Dynamic Acceleration Signal of Involute Spur Gear Drive System
1.The acceleration test signal is filtered with low-pass filter whose cut-off frequency is 10kHz, the highest response frequency of the […]
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Contact relationship and stress distribution of flexible ring gear of Involute Harmonic Gear
Flexible ring gear is a spur cylindrical external gear, and the ring gear after assembly deformation presents straight bus deformation […]
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Involute Harmonic Gear Flexible Gear Profile Parameters
1. Basic profile parameters and definitions Taking the involute profile as an example, the figure is an illustration of the […]
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Nonlinear dynamic backlash and meshing stiffness of sun gear
The analysis process of the dynamic backlash of the outer meshing pair composed of the sun wheel and the star […]
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The dynamic boundary condition of the modification area of involute spur gear
If there is tooth profile modification, the dynamic boundary condition of the modification area should be added on the basis […]
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Centroid Position Vector and Engaging Force of Gear Pair
The dynamic center distance of a gear pair at any time is the modulus of the difference between the vector […]
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Maximum circumferential stress of ring gear considering the influence of gear teeth
1. Maximum circumferential stress of ring gear in design specification Considering the influence of tooth parameters, load distortion of flexible […]
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Engaging position of involute spur gear at any engagement teeth
In order to obtain the dynamic engagement stiffness in the process of gear transmission, besides determining the engagement positions, the […]
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Example Analysis of Rolling Impact of Helical Gear
Figure 1 shows the calculation results of the load-dependent position of the rodent points on the standard and modified tooth […]
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Nonlinear dynamic meshing model of planetary gear drive
For the fixed shaft gear drive, the design parameters of each gear pair are different, the period of meshing stiffness […]
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Centroid Position Vector of Gear Pair and Action Direction of Engaging Force
At present, the meshing force of gear in most models always follows the theoretical direction of meshing line, ignoring the […]
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Aperture circumferential stress in ring gear ring theory
Flexible wheels are subject to alternating stress with an amplitude twice that of assembly stress. In the structural analysis of […]
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Solution of Rolling Point Position of Tooth Face without Edge Contact of Helical Gear
When TE is greater than LTE at small wheel angle_1A under small load, it means that the clearance between teeth […]
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Solution to Nonlinear Vibration of Spur Gear Drive System
The experimental research shows that the gear transmission system shows obvious non-linear vibration characteristics, and the traditional linear model can […]
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Engaging position of involute spur gear at any engagement teeth
The engagement position of individual gear teeth during gear transmission can be determined by analysis.In order to ensure the continuity […]
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An example analysis of dynamic meshing stiffness of involute spur gear transmission system
The engagement stiffness of the gear pair is calculated by applying the rotating speed of 2000r / min on the […]
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Maximum Assembly Stress of Flexible Wheel for Involute Harmonic Gear
Harmonic gear reducer is widely used in robotics, aerospace and other fields due to its high transmission ratio, high load-carrying […]
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Interaction force between cross-torsion-pendulum coupling gear pairs in involute spur gear drive
Most gear dynamic models assume that the meshing force is evenly distributed along the tooth width direction, but during actual […]
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Effect of speed change on engagement position of fixed-shaft gear drive
It is assumed that the centre of both gears is rigidly supported.In the meshing state of tooth surface, the relationship […]
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Nonlinear time-varying model of gear transmission system
The nonlinear time-varying model contains many nonlinear factors such as time-varying stiffness and clearance. Recently, with the development of nonlinear […]
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The influence of meshing state change of tooth surface and back of involute spur gear on meshing position
The engagement state of the tooth surface can be determined by the formula at any time during the transmission process.From […]
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Dynamic meshing stiffness of involute spur gear transmission system
It can be seen from the analysis that the dynamic boundary conditions α B (T) and the dynamic boundary conditions […]
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Mechanism analysis and improvement of gear surface corrugation order noise
1. Gear corrugation order noise and analysis A bewildering “ghost-step” noise occurs in the pre-production stage of a vehicle reducer […]
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Nonlinear dynamic model of lateral-torsional-pendulum coupling for involute spur gear drive
The three-dimensional solid model of involute spur gear drive is shown in the figure, and the following assumptions are used […]
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Nonlinear time-invariant model of gear drive system
In the process of gear transmission, in order to avoid jamming, clearance must be left between the sides of the […]
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Effect of Center Distance Change of Involute Spur Gear on Meshing Position
During gear transmission, changes in center distance cause changes in the direction of the engagement line, resulting in the actual […]
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Mechanism of gear surface corrugation order noise
In the gear vibration and noise phenomena of the automobile industry, gear screeching and knocking are usually the most common […]
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Nonlinear dynamic model of coupling of involute spur gear drive
According to the method used in establishing dynamic model, the dynamic model of gear transmission system can be divided into […]
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Non-linear dynamic tooth side clearance of fixed-shaft gear drive
In calculating the dynamic meshing force of the gear, the influence of the degree of freedom of swing is neglected, […]
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Linear time-varying model of gear transmission system
In order to ensure the continuity of gear drive, the overlap degree of gears is generally greater than 1, which […]
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Centroid Position Vector of Sun Gear Planetary Wheel and Action Direction of Engaging Force
The main difference between the three-dimensional dynamic model of the sun-planetary gear and that of the fixed-shaft gear drive is […]
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Nonlinear dynamic model of lateral-torsional-pendulum coupling for planetary gear drive
The three-dimensional solid model of the Involute Spur Planetary gear drive is shown in the figure, and the assumptions used […]
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Nonlinear Dynamic Model of Lateral-Torsion-Swing Coupling for Fixed-Shaft Gear Drive
Lagrange method is used to establish the yaw-torsion coupling nonlinear dynamic model of fixed-axle gear drive. The Lagrange equation is: […]
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Gear measurement and fault diagnosis
The manufacturing error of gear not only affects the stability of power transmission, resulting in vibration noise and dynamic load […]
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Nonlinear dynamics of involute spur gear drive system
(1) Nonlinear dynamic model of yaw-torsion coupling of involute spur gear drive For involute spur fixed-shaft gear drive and planetary […]
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Linear time-invariant model of gear transmission system
In the linear time-invariant model of gear transmission system, all non-linear factors are neglected and the time-varying meshing stiffness is […]
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Application of gear material
With the global shortage of resources and the aggravation of environmental pollution, people pay more and more attention to the […]
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Typical gear processing and precision forging of gears
Performance Analysis of Gears Produced by Two Processes The gear produced by a typical gear machining process is shown in […]
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Effect of Coupling between Tooth Side Clearance and Lubricant Viscosity of Spur Gear
The figure shows the distribution cloud of the tooth surface contact temperature on the lubricant viscosity and the tooth side […]
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Vibration and noise control of gear drive
The purpose of vibration and noise control of gear transmission is mainly to improve the dynamic performance of the transmission […]
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Correction measures and experimental verification of staggered helical gears
Corrective measures According to heat treatment process inspection and finite element calculation results, the transmission staggered helical gear is quenched […]
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Effect of Coupling Torque and Backlash of Spur Gear
The figure shows the distribution cloud of the tooth contact temperature in the clearance plane between the torque and the […]
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Efficient transmission of gear drive and energy saving
Efficiency is a very important performance index for the transmission of power. Low transmission efficiency will not only result in […]
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Finite element calculation of staggered helical gear
1. Calculation Model In order to investigate the contact stress on the tooth surface of this transmission staggered helical gear, […]
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Effect of Coupling between Speed and Side Clearance of Spur Gear
The figure shows torque T=10 N_m for four different lubrication states and oil viscosity 0=0.033At Pa_s, the distribution cloud of […]
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Effect of Coupling Torque and Viscosity of Lubricating Oil on Spur Gear
The figure shows a cloud diagram of the temperature change of the tooth contact in the plane of the rotational […]
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Calculation of axial pitch of six-circle arc helical gear
The working tooth profile of the hexagon-arc helical gear is composed of six segments of circular arcs. It adopts the […]
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Improve the bearing capacity of gear transmission
According to its main functions, gear transmission can be divided into motion transmission, power transmission, or both. The main function […]
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Heat Treatment Process Check for Staggered Helical Gear Fault
The driving wheel of the staggered helical gear is made of 42Cr Mo, conditioned and tempered, while the driven wheel […]