Calculation formula of meshing stiffness of variable hyperbolic arc gear
According to the forming principle of rotary cutter head, Zhao Fei et al. Verified mathematically that the middle section tooth […]
Scientific
Scientific
Time varying meshing stiffness of tractor planetary gears
In order to ensure the continuous operation, the meshing process of gears is actually the alternating meshing of single pair […]
News
Interface characteristics of gear pair
The interface characteristics of gear pair refer to the complex composition combination properties formed by the micro geometric characteristics, lubrication […]
Scientific
Constraint conditions of Tractor Gear Optimization Based on mathematical analysis
According to the characteristics of objective function and planetary gear design, constraints can be divided into flexible constraints and rigid […]
Scientific
Dynamic simulation of multistage gear transmission system of shearer cutting part
System dynamics simulation is to obtain the actual meshing state of each gear pair. The coupling dynamic model of the […]
Scientific
Discrete model and boundary conditions of finite element gear pair with time-varying meshing stiffness
The basic idea of using finite element method to calculate the time-varying meshing stiffness of gear pair is to discretize […]
News
Meshing stiffness of variable hyperbolic arc gear based on finite element method
In the process of gear meshing, the periodic changes of the number of meshing teeth and meshing position lead to […]
Scientific
Mathematical model of Tractor Gear Optimization
According to the large power of tractor transmission system, higher requirements are put forward for the strength and service life […]
Scientific
Example simulation and parameter influence analysis of meshing contact stiffness of gear tooth surface
The parameters of gear pair are selected as the calculation object, and the contact stiffness of gear pair under Yang […]
News
Understanding Helical Gear Design
Helical gear is a type of gear used in a variety of applications where smooth operation, high speed, and/or heavy […]
Scientific
Yang-sun and semi empirical contact model for meshing contact stiffness of gear tooth surface
According to the Hertz contact analysis theory, the geometric model of the contact end face of two cylinders as shown […]
Scientific
Formula of meshing force of single tooth considering multi-stage gear profile modification drum and support system deformation
In the following three steps, the formula of meshing force of single tooth is derived, which takes into account the […]
News
Comparison of results before and after gear modification
By using romax designer software, the optimal gear modification parameters are put into the gear modification module, and the simulation […]
Scientific
Optimization of gear three dimensional modification based on genetic algorithm
The determination method of gear modification parameters is usually based on theoretical calculation or experimental induction, this method is generally […]
Scientific
Principle and method of gear profile modification of transmission
Tooth profile modification is a common method to avoid the impact of gears in the process of meshing. It can […]
Scientific
Basic introduction and comparison of gear tooth profile
In order to further study the dividing line of the number of teeth in the two cases, according to the […]
News
Stress comparison of gear before and after modification
The static stress analysis of gear can check the contact and bending strength of gear, and analyze the stress, damage […]
Scientific
Stiffness composition and analytical equation of spur gear teeth
The standard involute gear with 20 ° pressure angle processed by rack cutter is shown in the figure. The complete […]
Scientific
Gear meshing stiffness composition
According to the meshing movement process of a pair of gear pairs, the statically indindent meshing diagram of the gear […]
News
Analysis of transmission gear before modification based on optimal modification design
After the research model of transmission gear transmission mechanism is established, the software is used to set the operating conditions […]
News
Gearbox model test under normal condition
The LSTM network model is established by selecting appropriate parameters to predict the oil temperature of gearbox. In order to […]
News
Study on the dynamics of gear transmission system under fatigue pitting of tooth surface
With the “innovation, coordination, green, open, sharing” five development concepts and development needs, industrial equipment demand of high quality quantification, […]
Scientific
Formula of single tooth meshing force considering support system deformation and multi-stage gear profile modification
Because reducing the fluctuation of static transmission error is generally accepted as the criterion of tooth profile modification, the key […]
Scientific
Fault signal of sun gear based on elmd optimized by adaptive noise parameters
The time domain waveform and frequency spectrum of vibration data measured when the sun wheel is cracked are shown in […]
News
Fault analysis of wind turbine gearbox based on long term and short term memory network
As a new machine learning method, deep learning method has been widely used in image processing, speech recognition, brain computer […]
Scientific
Fault signal of planetary gear based on ELMD optimized by adaptive noise parameters
The time domain waveform of vibration data measured when the planetary gear is cracked is shown in Figure 1. It […]
News
Study on Analytical Time-varying Meshing Stiffness of Gear
Chen et al. deduced and studied the influence of the meshing stiffness of the internal meshing gear pair and the […]
Scientific
Study on Time-varying Meshing Stiffness of Analytical Gear
The analytic method of potential energy is mainly based on the elastic mechanics theory and the elastic deformation energy under […]
News
Research on residual life prediction of gear based on long term and short term memory network
In recent years, deep learning has been widely concerned. Deep learning constructs a neural network model with many hidden layers […]
Scientific
Optimization effect evaluation of multi gear rocker box in shearer cutting section
This part analyzes the influence of rocker box structure optimization on gear meshing state of internal transmission system. Stationary random […]
Scientific
Fault analysis of planetary gearbox based on elmd with adaptive noise parameter optimization
In order to verify the effectiveness of the proposed method in planetary gearbox fault diagnosis, a planetary gearbox fault simulation […]
News
Meshing stiffness of variable hyperbolic arc gear based on finite element method
(1) Based on the finite element method, the meshing stiffness finite element calculation model and meshing stiffness calculation method of […]
Scientific
Dynamic model of planetary gear transmission system
According to Lagrange equation, the dynamic differential equation of planetary transmission system can be deduced as follows Among them, JS, […]
News
Meshing stiffness analysis of variable hyperbolic arc gear based on finite element method
In the process of gear meshing, the periodic changes of the number of meshing teeth and meshing position lead to […]
Scientific
Time varying meshing stiffness of planetary gears
In order to ensure the continuous operation, the meshing process of gears is actually the alternating meshing of single pair […]
News
China standard for gear transmission system
With the development of national industrial equipment and the urgent need for industrial products to be improved, the bearing capacity, […]
Scientific
Dynamics model of gear transmission system under fatigue pitting of tooth surface
Figure (b) and (c) the torsional vibration dynamic model of elastic support model (figure) (a) effect can reflect more parameters, […]
Scientific
Dynamic mathematical model of gear transmission system with different degrees of freedom and analysis objects
With three degrees of freedom type torsional vibration model (FIG. (a)) as the carrier for the influence parameters calculation and […]
News
Study on Dynamics Model of Gear Transmission System
Based on the single degree of freedom torsion model, Zajkek et al. used parabolic functions to describe the engagement stiffness […]
News
Explanation of gear transmission system characteristics
Gear system dynamics is a complex multi-coupling dynamics system, which strictly follows the system input-carrier analysis-response output dynamic control response […]
News
Dynamic characteristics of gear transmission system under fatigue pitting of tooth surface
The five development concepts of innovation, coordination, green, open and sharing are put forward, green production and green transformation are […]
News
Tractor gear transmission mechanism based on mathematical analysis
In the process of tractor gear transmission, the transmission load is large, the running speed is low, and the transmission […]
Scientific
Calculation of contact life of American Standard ANSI / AGMA 2001-d04 gears
American Standard ANSI / agma2001 is adopted to calculate the required contact strength, and the calculation formula is as follows: […]
News
S-N curve of contact strength of ANSI / AGMA 2001-d04 standard gears
In the design of American standard gears, steel, Grade2, hrc58-64 (AGMA), case carbonized steel and case hardened gear materials similar […]
Scientific
Calculation of gear life in ISO / TS 6336-2 standard
1.Calculate the S-N curve of gear The required contact strength is calculated according to ISO / TS 6336-2. Since it […]
Scientific
Topology optimization model of multi gear rocker box in shearer cutting section
Structural optimization is the application of optimization algorithm in mechanical design. According to different optimization variables and levels, it can […]
Scientific
Nonlinear connection of multi stage gear transmission box coupling dynamic model
Bearing reaction force, meshing load of fixed shaft gear, driving torque of cutting motor and cutting roller load are considered […]
News
Tractor heavy duty gear parameters and working conditions based on American Standard ANSI / AGMA 2001-d04 and international standard ISO / TS 6336-2
The bending fatigue life of tractor gear is closely related to the selection of gear modulus, which can be selected […]
Scientific
Constraint conditions of Tractor Gear Optimization Based on mathematical analysis
According to the characteristics of objective function and planetary gear design, constraints can be divided into flexible constraints and rigid […]
Scientific
Linear elastic connection of multi-stage gear transmission box coupling dynamic model
The motor rotor and the gear shaft 1, the gear shaft 8 and the sun gear of the first stage […]
News
Gearbox fault diagnosis method based on multi-channel one-dimensional convolutional neural network feature learning
The input of multi-channel signal can collect fault feature information more comprehensively, and CNN has achieved great success in the […]
Scientific
Mathematical model of Tractor Gear Optimization Based on mathematical analysis
According to the large power of tractor transmission system, higher requirements are put forward for the strength and service life […]
News
Example of data preprocessing method for fan condition monitoring based on physical structure of gearbox
Take the detection of high-speed shaft gear as an example. The sensor data of high-speed shaft bearing position is taken […]
Scientific
VMD comparison and verification of variable speed gearbox gear calculation
In order to further illustrate the superiority of this method, the order spectrum obtained by EMD and itd is compared […]
News
Application example of fan condition monitoring based on physical structure of gearbox
It is tested and verified on a 1.5 MW wind turbine in a wind farm. The gearbox of the fan […]
Scientific
Rigid connection of multi-stage gear transmission box coupling dynamic model
When the gear and the shaft are connected by spline, or the analysis object is the gear shaft, it can […]
Scientific
Feature extraction of gear uniform wear fault
Through the method proposed in this paper, the feature extraction of gear uniform wear fault is carried out, and the […]
Scientific
Structural optimization design of multi gear rocker box in shearer cutting section
Topology optimization is a kind of conceptual design. The optimization results are shown in the figure, which can not be […]
News
Data preprocessing algorithm based on gearbox configuration
For variable speed rotating machinery such as fan, in the process of operation, various signals reflecting its operation information are […]
Scientific
Feature extraction of gear broken fault
Firstly, the vibration signal is resampled in the angular domain, and the input shaft speed curve (as shown in Figure […]