Construction of vibration test platform for reducer variable speed integrated gear
The influence of different gear parameters on the vibration characteristics of the reducer variable speed integrated gear and the sensitivity […]
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Dynamic response calculation of gear tooth root dynamic strain measurement
The experimental platform for measuring the dynamic strain of gear tooth root is built, and the dynamic strain of gear
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Influence of load torque on gear vibration state
Figure a) shows the influence of load torque T2 on the rattling state of gears. It can be seen from
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Meshing stiffness calculation of elastic additional deformation of gear tooth root
Since the early computer was not widely used, the method based on mechanics of materials to calculate the time-varying meshing
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Research on Modeling and Simulation of early micro pitting failure of gears
In the past research on the dynamics of gear system with pitting corrosion fault, the main concern is that the
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Meshing impact mechanism of helical gear
In the process of gear transmission, there is a deviation between the actual base pitch and the theoretical pitch due
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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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Influence of time-varying meshing stiffness on gear vibration state
The ratio of the amplitude Kr to the average value K0 in the formula is defined as the amplitude coefficient
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Comparative analysis of calculation results of helical gear time-varying meshing stiffness
In order to compare the time-varying meshing stiffness results obtained by the three calculation methods of material mechanics method, finite
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Meshing stiffness calculation of gear bending deformation and shear deformation
In the figure, the gear teeth are divided into several segments by the idea of integral, and the shadow part
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Experimental study on gear pitting
The gear pitting failure is studied experimentally. Tan CK et al. Accelerated the occurrence of gear pitting failure by using
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Influence of eccentricity on gear vibration state
The variation law of gear vibration state with the eccentricity of reducer variable speed integrated gear is studied. Figure a)
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Research on gear friction excitation
In the past work, the main factors to be considered in the dynamic modeling of gear system with pitting corrosion
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Influence of static transmission error on gear vibration state
Figure a) shows the influence of static error amplitude Er on gear slapping state. With the increase of static transfer
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Research and analysis of gear stiffness excitation
The finite element method is used to verify and calculate the time-varying meshing stiffness of gears. In reference [29], chaari
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Formation and dynamic excitation mechanism of gear integrated meshing stiffness
In the process of transmission of motion and power, gear teeth will have bending deformation, shear deformation and other elastic
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Influence of input speed on gear vibration state
Speed is one of the external load parameters in gear system. Under theoretical conditions, gear slapping behavior will be more
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Comprehensive analysis of the influence of stiffness excitation and friction excitation on gear system response
We discuss the dynamic characteristics of the dynamic response of gears in time domain and frequency domain in three different
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Research on gear stiffness excitation
Gear transmission system is a typical elastic mechanical transmission system, which produces dynamic response under the influence of internal and
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Steady state of gear system based on harmonic balance method
Because the stiffness excitation and error excitation only select the first harmonic, the r = 1 of SSI = 0
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The influence of stiffness excitation and friction excitation on the response of gear system is considered comprehensively
This paper mainly analyzes the case of dynamic response model simulation 3. In this case, the stiffness excitation and friction
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Calculation of gear meshing stiffness for measuring tooth root dynamic strain
Since the gear tooth is simplified as a cantilever beam with variable cross-section, the stress distribution of the gear tooth
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Study on dynamic model of gear system
It is the central task of gear system dynamics to establish accurate dynamic model of gear system. Only by establishing
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Steady state response of gear system based on harmonic balance method
The transmission ratio of the reducer variable speed integrated gear is as follows: Where ε is the eccentricity. The expressions
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Only the influence of friction excitation on the response of gear system is considered
This paper mainly analyzes the case II of dynamic response model, which only considers the influence of the increase of
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Theory of gear meshing stiffness
The comprehensive meshing stiffness of gear is the elastic response of the comprehensive Meshing Effect of each pair of teeth
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Research on simulation model of gear pitting
The tooth surface pitting fault is a common failure form of gear system. In the modeling of gear pitting fault,
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Discrete Fourier transform of nonlinear function of gear clearance in reducer variable speed integrated gear
In the system of equations Si, the coefficient Zi of the steady-state response q is the unknown quantity to be
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Calculation of time-varying meshing stiffness of healthy gears
According to the energy method, the bending energy, shear energy and axial compression energy stored in gears can be expressed
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There is a high probability of gear pitting failure
When the gear system has tooth profile error, tooth surface roughness is too high, the lubricating oil film is too
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Only the influence of stiffness excitation on the response of gear system is considered
This paper mainly analyzes the dynamic response model simulation case 1. That is to say, only the influence of gear
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Dynamic response analysis method of gear system
In the analysis methods of gear system dynamic response, time domain signal analysis method is the direct means to study
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Sensitivity of system parameters to gear vibration amplitude
The sensitivity of parameters is very important to the dynamic design and optimization of gear system. There are three commonly
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Time varying meshing stiffness of healthy gears
The time-varying meshing stiffness of gears is an important excitation source of gear vibration. Accurate calculation of the time-varying meshing
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The fatigue pitting of gears is caused by insufficient contact fatigue strength
Gear box is the most commonly used power and motion transmission device in mechanical equipment. Gear transmission has many advantages
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Calculation of time-varying meshing stiffness of pitting gears
In the study of gear tooth surface pitting fault, the main shapes of pitting corrosion are rectangular pitting, elliptical pitting
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Influence of load torque on gear vibration
In addition to the static transmission error, time-varying meshing stiffness and other internal excitation will affect the vibration of the
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Research status of non-circular gear dynamics
The existing research on the dynamics of noncircular gears can be roughly divided into two categories: rigid dynamics and elastic
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Gear dynamic model formula
The torque of the driving gear and the internal force acting on the gear are given. In order to show
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Influence of time-varying meshing stiffness on gear vibration
Figure a) shows the influence of the average value of gear meshing stiffness K0 on the response peak to peak
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Vibration analysis of reducer variable speed integrated gear based on harmonic balance method
Noncircular gear is a kind of precise transmission mechanism which can realize the complex functional relationship between driving wheel and
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Gear dynamic model
In order to study the influence of time-varying meshing stiffness and sliding friction force on the dynamic response of gear
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Basic knowledge of gear (4)
What is the equivalent gear and equivalent number of teeth of helical gear? What is the purpose of equivalent number
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Gear meshing process
Gear system dynamics is a discipline to study the dynamic behavior of gear system in the process of transmitting motion
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Influence of static transmission error on gear vibration
The static transmission error is one of the main excitations in gear transmission. It can be seen from the figure
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Basic knowledge of gear (3)
How to determine the minimum number of teeth without undercutting for standard external gear? Answer: it is determined by Zmin
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Influence of different eccentricity on gear vibration
The eccentricity ε determines the variation range of the transmission ratio of the reducer variable speed integrated gear. The larger
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Experimental study on gear pitting
Taking gear as the research object, starting from different research methods, through the establishment of gear system dynamic model, the
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Research on gear stiffness excitation at China and abroad
In the process of calculating the meshing stiffness of gears with energy method, the gear teeth are usually assumed to
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Basic knowledge of gear (2)
What is a standard gear? Answer: m, α, h * a, c * are standard values, and S = e
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Influence of different input speeds on gear vibration
When the diagram shows the dynamic response peak to peak value with the input speed change law curve. When the
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Optimization of gear modification parameters based on genetic algorithm
Gear profile modification is an effective method to obtain better meshing contact characteristics and dynamic characteristics by trimming the profile
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Steady state response solution of gear system based on multinomial harmonic balance method
From the basic parameters, the time-domain response curve of the reducer variable speed integrated gear obtained by harmonic balance method
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Solution steps of approximate analytical solution of harmonic balance method for reducing speed integrated gear
Considering the harmonic balance between the left and right sides of the formula, the angular acceleration term on the right
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Optimization analysis of gear profile modification based on genetic algorithm
In engineering design, there are many very complex optimization problems, which are often difficult to find the optimal solution by
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Analysis of the influence of load torque on gear vibration state
(1) Eccentricity, input speed and error amplitude have great influence on the rattle state of the gear pair. With the
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Simulation of planetary gear sideband frequency signal
1 Experiment description The main body of the experiment is the eight speed automatic transmission under development. The experiment is
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Research Status of Gear slap Dynamics at China and Abroad
Among domestic scholars, Feng Qi and others have studied the slapping vibration of random AM secondary drive, directly adopted non-Gauss
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Simulation of planetary gear sideband frequency signal
1 Gear matching scheme In order to analyze the influence of the number of teeth, the number of planetary gears
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Research Status of Gear Slap Dynamics Abroad
When a gear system is running at a low speed, a “rattling” gear knock, called rattling, often occurs.The decibel value