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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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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Research status of gear bending fatigue abroad
Miryam and pedrero et al. Proposed a model which can be used to calculate the bending fatigue stress of gear
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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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Failure forms and characteristics of gears
In most cases, the failure of gear teeth is the result of damage accumulation. Due to the different manufacturing processes
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Research prospect of high speed helical gear transmission system for electric vehicles
Although the vibration characteristics of high-speed helical gear transmission of an electric vehicle reducer are studied, some practical conclusions are
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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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High speed helical gear transmission system of electric vehicle
Taking the high-speed helical gear transmission of an electric vehicle reducer as the research object, firstly, the time-varying meshing stiffness
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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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Tooth surface modification design of high speed helical gear transmission vibration tooth surface modification
Dynamic modeling is the basis of simulation analysis. The simulation model of high-speed helical gear transmission system of an electric
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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
Scientific
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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Vibration characteristics of two stage helical gear transmission under meshing impact excitation
The vibration characteristics of two-stage helical gear drive under meshing impact excitation are further analyzed, and the vibration response of
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Vibration characteristics of high speed helical gear transmission under combined excitation
In order to study the influence degree of two kinds of excitation factors on the system vibration, the vibration speed
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Vibration response of high speed helical gear drive under combined excitation
The obtained time-varying meshing stiffness curve and meshing impact curve are input into the dynamic equation group at the same
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Influence of time varying meshing stiffness amplitude on vibration characteristics of high speed helical gear transmission
In order to study the influence of the amplitude of time-varying meshing stiffness on the vibration characteristics of the system,
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Influence of mean value of time-varying meshing stiffness on vibration characteristics of high speed helical gear transmission
In order to study the influence of the mean value of the time-varying meshing stiffness on the vibration characteristics of
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Vibration response of high speed helical gear driven by time varying meshing stiffness
The time-varying meshing stiffness curve obtained above is input into the dynamic equations to obtain the vibration response of single-stage
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Vibration characteristics of high speed helical gear transmission excited by time varying meshing stiffness
The dynamic model of an electric vehicle reducer is established, and the time-varying meshing stiffness curve and meshing impact curve
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Bending torsion shaft dynamic model of single stage helical gear transmission
Taking a high-speed helical gear transmission of an electric vehicle as the research object, the structure diagram is shown in
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Calculation of meshing impact force amplitude of helical gear transmission
Due to the mass and inertia of the gear, the meshing impact speed will produce meshing impact force. The size
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Calculation of meshing impact velocity of helical gear transmission
From the above analysis, it can be seen that the gear error and the loaded deformation of the gear teeth
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Vibration characteristics of two stage helical gear transmission excited by time varying meshing stiffness
After solving the differential equations, the vibration acceleration of two teeth in each direction is synthesized into “the relative vibration
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Determination of external meshing point position of helical gear transmission
In the figure, OP is the center of the driving wheel, og is the center of the driven wheel, P
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Calculation of time-varying gear meshing stiffness based on improved LTCA
Using the improved LTCA method to calculate the time-varying meshing stiffness of gears is another high-efficiency and high-precision calculation method.
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Meshing stiffness calculation of time-varying gear based on finite element method
With the development of computer technology, the application of finite element method is more and more widely. Abaqus is used
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Experimental study on dynamic response of gear system simulation
Fig. 1 shows the experimental vibration acceleration signals of healthy gear and pitting gear. It can be seen from the
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Dynamic response analysis of gear system
In order to further evaluate the influence of gear pitting failure on the dynamic response of gear system, the meshing
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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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Meshing stiffness calculation of gear tooth root dynamic strain
The relationship between the tooth root bending strain and the gear meshing stiffness is deduced. Therefore, the meshing stiffness of
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Vibration response of high speed helical gear transmission under meshing impact excitation
In order to study the vibration characteristics of single-stage helical gear transmission system under meshing impact excitation, the obtained meshing
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Analysis of dynamic strain of gear tooth root
The dynamic strain of tooth root measured by fiber Bragg grating sensor and piezoelectric strain sensor is analyzed. The dynamic
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Calculation method of gear meshing stiffness based on tooth root dynamic strain measurement
According to the definition of mechanics of materials: under the action of external force, the energy stored in elastic body
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Determination of external meshing point position of helical gear transmission meshing impact line
The main error items of gear are: base pitch deviation Δ FPB, tooth profile error Δ FF, tooth alignment error
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Experimental study on dynamic strain measurement of gear tooth root
The gear tooth root dynamic strain measurement experiment is carried out on an industrial standard gearbox, which is installed on
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Analysis and calculation of meshing impact of helical gear transmission
In the whole meshing area of gear pair, the meshing point of error free gear transmission is always on its
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Effect of gear pitting on friction excitation
The Coulomb friction model with time-varying friction coefficient is given and introduced into the dynamic model of gear system, in
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Analysis on vibration characteristics of high speed helical gear transmission system of electric vehicle
Taking the high-speed helical gear transmission of an electric vehicle reducer as the research object, the vibration characteristics of the
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Influence of gear pitting on stiffness excitation
In the tooth surface pitting fault simulation model, it is assumed that all the centers of pitting are distributed on
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Analysis of gear vibration characteristics under the excitation of other factors
(1) At present, there are many methods to calculate the meshing stiffness of gears. For spur gears, helical gears and
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Friction excitation of gear system
For the established dynamic model of gear system, the influence of sliding friction on tooth surface is considered in the
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Vibration characteristics of gears excited by other factors
Gear transmission system is a complex system with multiple excitation factors coupling each other. Considering all the internal and external
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Gear model of early tiny pitting failure
In this experiment, the tooth surface pitting only occurs on one tooth surface of the driven gear, and the tooth
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Analysis of gear vibration characteristics under meshing impact excitation
In the actual process of gear meshing transmission, due to the manufacturing error and tooth deformation of the gear, the
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Innovation of vibration characteristics of reducer speed integrated gear based on harmonic balance method
Through the dynamic signal analysis system, the vibration characteristics of the gear system are tested, and the vibration states of
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Finite element method for calculating vibration characteristics of gears excited by time-varying meshing stiffness
In the early research, due to the limitation of computational resources and methods, the time-varying meshing stiffness of gears can
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Vibration characteristics of reducer variable speed integrated gear based on harmonic balance method
In this paper, the parametric vibration without backlash and the nonlinear vibration with backlash are studied respectively. The transmission system
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Material mechanics calculation method of gear vibration characteristics under time varying meshing stiffness excitation
The meshing stiffness of gears refers to the ability of gear teeth to resist elastic deformation under the action of
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Impact of Input Speed on Vibration of Reduced-Variable Integrated Gear Vibration Test
According to the experiment, the system load is set at 5N.m, the input speed is 1120 r/min, 840 r/min, the
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Research status of high speed helical gear transmission system for electric vehicles at China and abroad
Due to its advantages in efficiency, service life and application range, gear transmission has become an indispensable part of the
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Vibration Test of Reduced-Variable Integration Gear Load Torque Effect on Vibration
According to the test in experiment 2, the speed of three-phase variable frequency speed motor is set at 560 r/min
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Scheme of high speed helical gear transmission system for electric vehicle
As the most commonly used motor centralized drive transmission system of electric vehicles, the motor is directly connected with the
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Harmonic frequency components in vibration test of reducer variable speed integrated gear
When the input speed is 560 R / min, the theoretical frequency component of gear vibration response is calculated by
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High speed helical gear transmission of electric vehicle
The transmission system of automobile is one of the core competitiveness of automobile. The transmission system of traditional fuel vehicle
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Gear dynamic response modeling case
When there is pitting on the gear surface, the pitting will reduce the time-varying meshing stiffness and the sliding friction
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Meshing stiffness calculation of contact deformation of gear meshing point
Due to the contact stress during gear meshing, contact deformation will occur. The contact deformation δcb can be calculated according
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Test scheme of vibration test for reducer variable speed integrated gear
The specific implementation process of vibration experiment is as follows: (1) Make preparations before the formal experiment. First, check that