Practical application field of transmission gear
With the rapid development of China’s economy, the proportion of automobile in urban construction, resource exploitation, transportation and daily travel […]
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Prospect of research on fault vibration characteristics of gear transmission system
A series of research work is carried out on the influence of typical faults such as root crack and bearing
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Fault vibration characteristics of gear transmission system
Taking the typical fault vibration characteristics of gear transmission system as the research object, the time-varying meshing stiffness of gear
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Dynamic model of gear-rolling bearing system
Taking the gear bearing transmission system as the research object, the dynamic model of the gear rolling bearing system with
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Gear root crack and bearing rolling element fault
The figure shows the frequency domain diagram of bearing 1 and bearing 3 when root crack and raceway fault occur
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Gear root crack and bearing inner raceway fault
The figure shows the frequency domain diagram of bearing 1 and bearing 3 when root crack and raceway fault occur
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Gear root crack and bearing outer raceway fault
The figure shows the frequency domain diagram of bearing 1 and bearing 3 when root crack and outer raceway fault
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Frequency domain characteristics of gear profile error and vibration characteristics of bump
Frequency domain characteristics of tooth profile error The tooth profile error mainly acts on the gear meshing frequency energy, and
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Research on gear vibration noise of manual transmission
As far as the current research is concerned, the research on the vibration and noise of automobile transmission mainly focuses
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Research purpose of gear transmission system fault
As the most widely used power and motion transmission device of mechanical equipment, the mechanical behavior and working performance of
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Research status of compound fault of gear transmission system abroad
Kahraman and Singh established a 3-DOF dynamic model. The nonlinear relationship between radial clearance and ruler side clearance of rolling
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Research status of compound fault of gear transmission system in China
Domestic scholars have also carried out a lot of research on the compound fault of gear transmission system. Li Ming
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Research status of rolling bearing failure mechanism in China
Domestic scholars have also carried out a lot of research on the fault mechanism of rolling bearing. Cao Chongfeng and
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Research status of rolling bearing failure mechanism abroad
Rolling bearing is one of the important parts of gear transmission system. The sliding friction between gear shaft and box
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Research status of gear root crack in China
Domestic scholars have also carried out relevant research on the root crack fault mechanism. Shao Renping established the gear dynamic
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Research status of gear root crack in foreign countries
In the process of gear meshing, the loaded tooth is like a cantilever beam. The pulse cyclic stress on the
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Research status of gear transmission system dynamics in China
Domestic scholars have also done related work in the development of gear transmission system. Zhu Qin and Xie Longbai established
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Research status of gear transmission system dynamics abroad
Tupin put forward the concept of equivalent meshing stiffness for the first time and established the dynamic model of gear
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Development process of gear transmission system dynamics
Gear transmission system dynamics mainly studies the mechanical behavior of gear transmission motion and power process, including research on dynamic
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Theoretical basis of fault diagnosis method for gear transmission system
Gear transmission is an important part of mechanical transmission. It has the advantages of compact structure, high transmission efficiency, long
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Study on bending fatigue of gears abroad
Rad and forouzan et al. Used XFEM extended finite element method to analyze the propagation path of helical gear root
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Research status of gear bending fatigue abroad
Lewicki explored the law of fracture and crack generation of two-dimensional gear teeth, and proposed a super safety design concept.
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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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