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 […]
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Failure Analysis of Right Traction Gear of Electric Traction Shearer
Samples are taken from the invalid gears, after grinding and polishing, the metallographic structure is observed by Olympus microscope, and […]
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Characteristics and machining requirements of contact area of Klingenberg spiral bevel gear
The contact area mainly refers to the actual contact between the two bevel gears during meshing.The requirements for contact area […]
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Effect of Coupling of Speed and Torque of Spur Gear
The figure shows the backlash Jn=0 mm and the lubricant viscosity 0=under 4 different lubrication conditions.0.033At Pa_s, a cloud diagram […]
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Modeling of Helical Gear Locking Mechanism with Locking Function
Since the locking mechanism is based on an improvement of the Eastern Wind Mentoson 2nd generation differential, the size of […]
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Comprehensive Analysis of Broken Teeth of Large Helical Gear of Loader Drive Axle
Gear force analysis can be concluded that the radius of curvature of the tooth root fillet is the main factor […]
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Wear of staggered helical gears
Staggered helical gears are used to transmit the motion between two staggered shafts in space. For a single gear, they […]
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Final machining and surface integrity control of gears
After hardening or strengthening of gear surface by heat treatment, there are often black oxide skin or other defects, such […]
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Metallographic analysis of active helical gear
Test equipment: MH-6 micro Vickers hardness tester, TH300 Rockwell hardness tester, DMI5000M metallographic microscope Reference Standards: Metallographic examination of QC/T262-99 […]
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Failure Analysis of Main Helical Gear Pair of Through-drive Axle for a Three-axle Special Vehicle
We can basically conclude that the root cause of tooth breakage and brittle failure of medium drive gear pair is […]
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Effect of Coupling of Speed and Torque of Spur Gear
The figure shows the backlash Jn=0 mm and the lubricant viscosity 0=under 4 different lubrication conditions.0.033At Pa_s, a cloud diagram […]
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Parametric Modeling of Helical Gear with Locking Function
According to the structural design data, digital modeling is carried out in SolidWorks software. (1) Design of end profile.Setting helical […]
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Design of conjugation curve of helical gear pump
The profile of the circular arc curve – Involute – circular arc curve is used, the circular arc curve is […]
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Force Analysis of Broken Tooth of Large Helical Gear of Loader Drive Axle
According to the working characteristics of gears, during the transmission of power and motion, the gear will generate bending stress […]
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Surface strengthening and surface integrity control of gears
In addition to surface hardening to improve the hardness and strength of the surface layer, in order to improve the […]
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Experimental Research and Contrast Analysis on Tooth Surface Contact Temperature of Spur Gear
The main and driven gear materials in the gear temperature measuring test stand are constantan and 40Cr steel respectively. In […]
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Basic parameters of helical gears with locking function
Parallel-shaft helical gears (helical gears) have an additional helical angle in addition to the same basic parameters as spur gears.Expand […]
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Helical surface equation of helical gear with locking function
It is generally believed that there are two ways to derive the helical surface.One assumes that the helical surface is […]
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Deformation of cylindrical helical gear in different tooth deformation areas during hot precision forging
In order to understand the deformation and flow rules of metal in different positions of blank during forming, five sections […]
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Improvement measures for broken teeth of large helical gear of loader drive axle
(1) Replace the gear cutting tool with bigger fillet on the top of the tooth to increase the radius of […]
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Physical and chemical inspection on broken teeth of large helical gear of loader drive axle
1. Macro-examination The fracture morphology of the failed large helical gear teeth is analyzed. As shown in Figure 1, it […]
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Verification of Spur Gear Model and Application of Example
According to the accurate modeling idea of spur gear pair, the meshing stiffness calculation can be calculated by the inductive […]
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Heat treatment hardening and surface integrity control of gears
The non main load-bearing gear is often machined directly after quenching and tempering of 45 steel. The recently developed low […]
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Calculation of Tooth Face Friction Factor of Spur Gear under Different Lubrication Conditions
Gear transmission system mainly has 4 different lubrication states, including elastohydrodynamic lubrication, mixed lubrication, boundary lubrication and dry friction.The friction […]
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Time-varying meshing stiffness calculation of spur gear potential energy method
The profile shape of standard involute gears generally consists of two sections, i.e. transition rounded curve AB and involute curve […]
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Geometric motion model of spur gear meshing
According to the engagement principle of involute spur gear, when a pair of involute profiles engage and drive, any engagement […]
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Laser tracking in place measurement method for oversize gears
As far as the gear in place measurement is concerned, the common problem is how to accurately determine the position […]
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Calculation of tooth surface contact temperature of spur gear
During gear meshing, the tooth contact temperature and the instantaneous tooth surface temperature change in real time, which can be […]
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Calculation of instantaneous temperature on tooth surface of spur gear
Tooth surface instantaneous temperature is the instantaneous high temperature generated by contact points during gear meshing, which is mainly distributed […]
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Simulation Analysis of Residual Stress on Gear Forming Grinding
Due to the different normal grinding depths and wheel speeds at different locations of the involute, the intensity of the […]
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A new method for measuring the tooth profile of large gears
As shown in the figure, when using the generating method to measure the big gear, the conical probe should start […]
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Multi site integrated parallel measurement technology for super large gears
The diameter of the oversize gear is large, the number of teeth is large, and the inertia is large. If […]
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The difficulty of measuring big gear
Gears are usually divided into vehicle gears and industrial gears. According to the Convention, gears with a diameter greater than […]
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Geometric and Kinematic Analysis of Forming Grinding of Spur Gears
As shown in Fig. 1, spur gear shape grinding is to trim the wheel shape to the desired profile and […]
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The realization of gearbox system of agricultural machinery tractor
1. Create gear parametric model Nx software itself can generate gear model, but it can only generate the bottom features […]