Sensitivity of system parameters to gear vibration amplitude
When calculating the sensitivity of each parameter, other parameters remain unchanged. According to the data of noncircular gears in table […]
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Kinetics of Friction Excitation on Gear Face
In domestic research, Wang Sanmin et al. established a sub-non-linear dynamic model. By means of numerical calculation, the influence of
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The harmonic balance method of the vibration harmonic balance method for reducing speed integrated gear
It can be seen from the formula that the harmonic components of ω C and N ω e (n is
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Dynamics of coupling model of gear transmission case surface acceleration
The acceleration of the box surface is an important parameter to excite the radiated noise of the surrounding air. Figure
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Failure Analysis of 42CrMo Carburized Steel Gear of Coal Mill
1. The chemical composition of sun gear material conforms to the requirement of chemical composition content of 42CrMo steel in
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Dimensionless dynamic model of reducer variable speed integrated gear
In the formula, although the meanings of R2 (T) cos α inside and outside the brackets are different, the results
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Research on Dynamic Characteristics and Noise Reduction of Gear Drive System
In 1991, Ozguven analyzed the non-linear dynamic characteristics of spur gear with six-degree-of-freedom non-linear bending-torsion coupling model, based on the
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Research on vibration characteristics of reducer speed integrated gear based on harmonic balance method
According to the meshing principle and gear dynamics theory, the multi parameter variable vibration model of the new type of
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Multi parameter variable vibration characteristics of reducer variable speed integrated gear
The speed reduction integrated gear integrates the transmission characteristics of non-circular gear and face gear, and can realize the variable
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Research status of face gear dynamics at China and abroad
The further application of face gear benefits from the following researchers. Zhao et al. Broke through the traditional mode and
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Metallurgical Quality Analysis of Coal Mill Gears
Non-metallic inclusions in gear materials are rated according to the national standard.The non-etched microstructure of the metallographic wear surface of
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Time varying tooth meshing error excitation of reducer variable speed integrated gear
The tooth meshing error produced in the process of gear machining and installation is a kind of displacement type dynamic
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Time varying meshing stiffness excitation of reducer variable speed integrated gear
The influence of stiffness excitation is directly reflected in the time-varying coefficient of elastic force term in the dynamic model
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Time varying transient center excitation of reducer variable speed integrated gear
The circular gear mainly includes two kinds of internal excitation stiffness excitation and error excitation. As the power transmission of
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Dynamic simulation innovation of gear transmission under different factors
① The precise dynamic model considering the friction of tooth surface is established, and the complex time-varying stiffness and the
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Tooth profile equation and meshing equation of noncircular gear
When machining non-circular gear, the relative velocity before two gears is perpendicular to the normal vector of the meshing contact
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Meshing equation and tooth profile equation of noncircular gear
In order to get the meshing equation and the tooth profile equation of non-circular gear, it is necessary to establish
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Forming principle of gear tooth surface of reducer variable speed integrated gear
The machining basis of noncircular gear is the generating method. Firstly, the non-circular gear blank is processed, and the gear
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Research status of dynamic characteristics and noise reduction of gear transmission system
The research on dynamic characteristics and dynamics of gear transmission system has been gradually developed from static analysis to dynamic
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Pitch curve and transmission ratio of reducer variable speed integrated gear
The reducer variable speed integrated gear is a new type of gear mechanism, which is composed of ordinary involute cylindrical
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Research status of noncircular gear dynamics at China and abroad
On the basis of previous studies, some scholars have added the influence of other parts of the system, such as
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Robustness analysis of gear modification
Robustness is also known as robustness. For gear modification, it is to ensure that the optimal modification scheme has stable
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Conclusion of the effect of shot peening on the bending fatigue properties of gear materials
a. The curves of bending P-S-N of 20crnimoh material with different survival rates of shot peened and non shot peened
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Research status of face gear dynamics
The reducer variable speed integrated gear is put forward on the basis of face gear and non-circular gear characteristics. The
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Chemical Composition Analysis of Coal Mill Gear Material
A more detailed chemical composition analysis of the gear material sent for inspection is performed based on the spectral analysis
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Dynamic simulation of gear transmission under different factors
Based on the actual engineering application, the dynamic characteristics of gear transmission system and the methods of vibration reduction and
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Analysis of bending fatigue property of gear material by shot peening
a. In gear manufacturing, two kinds of test gears adopt the same material, the same machining and heat treatment process,
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Gear backlash and its smoothing
Gear backlash is the amount of circumferential shaking of another gear when one gear is fixed, which is calculated by
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Energy Spectrum Analysis of Coal Mill Gear
Electron spectroscopy is a common method for analyzing surface components of materials.The root surface near the fracture source and the
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Analysis on Main Factors of Gear Beating
The knocking dynamics of the vehicle transmission includes two aspects: one is the knocking in neutral, i.e. the knocking produced
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The dynamic characteristics of gear beating excitation
The rattling force of gear is another important source of vibration and noise of gear. It produces rattling sound of
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Side band frequency characteristics and mechanism of planetary gear meshing excitation modulation
(1) The distribution model of the frequency band law of planetary gear system is established, which mainly considers the number
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Vibration excitation and signal model of gear engagement
Transmission error is the main excitation of gear vibration. It combines the influence of meshing time-varying stiffness and manufacturing error,
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Optimization target setting of gear modification parameters based on genetic algorithm
For the set optimization objective, that is, the minimum peak peak te optimization of transmission error, it is not known
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The establishment of the analysis model of gear mesh excitation modulation sideband frequency
In the development of planetary gear drive, it is found that there is obvious noise in the bench test of
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Analysis of the characteristics and mechanism of the side band frequency of gear meshing excitation modulation
There are many meshing excitations in gear drive, such as planetary drive. There are often modulation phenomena between these excitation
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Drawing P-S-N curve of bending fatigue property of gear material by shot peening
According to the calculation results, the curve of bending P-S-N of two different process gears of 20crnimoh material is shown
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Microscopic morphology analysis of coal mill gear
The fracture specimens were cut at the gear break and cleaned several times, then the fracture morphology was analyzed.The micro-morphology
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Coal Mill 42CrMo Carburized Steel Gear
Coal mill is an important equipment in coal-fired units of thermal power plant, which breaks coal blocks into pulverized coal,
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Basic knowledge of gear (1)
What is the basic law of tooth profile engagement and what is the basic law of tooth profile engagement with
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The dynamic load on the gear system of the vehicle
The maximum dynamic meshing force and the dynamic load coefficient of the loaded gear are analyzed respectively. They can provide
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Optimization evaluation group of gear modification parameters based on genetic algorithm
1) Decoding According to the encoding mode, the chromosome bit string is decoded to obtain the shape modification quantity is,
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External excitation load of vehicle gear transmission system
The external excitation load of vehicle gear transmission system mainly includes engine input torque and load torque. The engine of
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Dynamic characteristics and noise reduction of gear drive error excitation
Starting from the error excitation of transmission in the direction of meshing line, taking the mechanical gearbox as the object,
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Optimization of gear modification parameters based on genetic algorithm
① Gene coding of modification parameters Four modification parameters of driving gear are defined as tooth height deflection (is δ),
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Dynamic bearing force of coupling model of gear transmission
The dynamic bearing force is an important parameter in the dynamic response. The dynamic characteristics of the gear system are
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Inherent modal analysis of coupling model dynamics of gear transmission
Modal analysis is based on the static finite element model. In the process of modal analysis, the natural characteristics (natural
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Dynamic Inherent Mode Analysis of Gear Drive Coupling Model
In the established five-gear manual transmission model, there is coupling of finite element model, and the number of degrees of
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Dynamic Model of Gear Drive System of Tracked Vehicle
From the analysis results, it can be seen that the influence of the degree of freedom of swing is relatively
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Dynamic Characteristic of Gear Drive Error Excitation Stiffness Matrix of Rolling Bearing
The stiffness matrix of the rolling bearing connects the relative displacement and deflection of the inner raceway to the center
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Hardness Test of Coal Mill Gear
Rockwell hardness tests were carried out on the surface and center of the intermediate shaft sun wheel at different points.
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Dynamic Modal Compliance Analysis of Gear Drive Coupling Model
Modal flexibility is the degree to which a modal frequency of the system is easily excited by the transmission error
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Arrangement of Measuring Points for Dynamic Characteristic Simulation of Gear Drive Error Excitation
In order to facilitate comparison with subsequent experimental verification, corresponding numbered nodes are defined on the model box, through which
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Dynamic Characteristics of Gear Drive Error Excitation Calculation Method of Gear Drive Error
There are several calculation methods for gear drive errors, including finite element method and empirical analysis method.The transmission error obtained
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Dynamic characteristics of gear friction excitation
(1) Starting from the friction excitation of the tooth surface, a six-degree-of-freedom accurate gear dynamic model considering the friction of
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Analysis and discussion of experimental results on dynamic characteristics of gear friction excitation
(1) Comparison between simulation and experiment Figure 1 compares the acceleration simulation and experimental results of pinion end with obvious
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Optimization model for static performance of involute spur gears
(1) Design variables The design variables of static performance optimization model and dynamic performance optimization model are the same. (2)
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Dynamic Characteristic of Gear Drive Error Excitation Shafting Timoshenko Beam Unit
The establishment of dynamic simulation model is completed by RomaxDesigner.In the model, the shafting is treated as a Timoshenko beam
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Dynamic Characteristic Analysis and Noise Reduction Research of Gear Drive Error Excitation
Gears transmit power between the main and passive gears by the meshing force on the tooth surface. The meshing force
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Application of 6-DOF Dynamic Model in Gear Industry
Then the engagement force Np, Ng and friction force Fp, Fg can be expressed as: Where: lambda (t) is the