Streamline model cavity for precision forging of spur gear
Professor Liu Quankun of Hefei University of technology proposed to simulate the continuous extrusion forming of spur gear through the […]
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spur gear
Scientific
Two dimensional contact boundary condition and loading setting of concave bionic spur gear
Consistent with the boundary condition setting of the smooth spur gear, restrict the degrees of freedom of all nodes in […]
Scientific
Establishment of two-dimensional model and meshing of concave bionic spur gear
Consistent with the two-dimensional modeling of smooth spur gear, the two-dimensional line contact peripheral contour curve of spur gear is […]
Scientific
Design of warm forging forming scheme for spur gear
Three kinds of warm forging die structures are set according to the structural characteristics of spur gear. As shown in […]
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Floating die technology for precision forging of spur gear
In 1987, British universities first proposed the idea of precision forging hollow parts with floating die. According to the principle […]
Scientific
Calculation results and stress analysis of two-dimensional contact stress of smooth spur gear
1. Equivalent stress analysis of two-dimensional line contact of smooth spur gears The general post processor in ANSYS is used […]
Scientific
Design of hot forging drawing of spur gear
Warm forging is equivalent to the pre forming step of spur gear. The design of pre forging drawing is based […]
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Precision forging technology of spur gear
Ohga K and Konda K first proposed to apply the shunting process to the precision forging technology of spur gears […]
Scientific
Design of cold forging drawing of spur gear
It is proposed to use the warm and cold composite process to process spur gears. It is divided into pre […]
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Precision forging technology of spur gear
Gear is an important part of mechanical transmission. Its main function is to transmit power and change the speed and […]
Scientific
Precision plastic forming process and principle of spur gear
In recent years, the precision forming of spur gears in China has been greatly developed, but there are still many […]
Scientific
Solution setting of two-dimensional contact analysis of spur gear
Spur gear contact is a typical nonlinear problem, and its solution process generally needs iterative calculation. There are problems of […]
Scientific
Boundary conditions and loading of two-dimensional contact analysis of spur gears
In the actual fatigue wear test of spur gear, the pinion is the driving spur gear and the big gear […]
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Numerical simulation and virtual reality simulation of compound forging process of spur gear
The 18CrNiMo7-6 spur gear of Zhengzhou Machinery Research Institute is taken as the research object. The spur gear is characterized […]
Scientific
Establishment of two-dimensional contact model and meshing of smooth spur gear
Using the advanced curve drawing function in the two-dimensional drawing software CAXA electronic Using the advanced curve drawing function in […]
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Compound forging forming of spur gear
As the key component of high-end equipment, the research on the precision forging process of large module spur gear has […]
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Research status of warm and cold compound process of spur gear in China and abroad
Warm cold composite forming technology is a new process abroad in the 1970s, but it was not widely used in […]
Scientific
Selection of technological parameters for rotary forging of spur gears
According to the production practice of spur gear, the elastic deformation in the forming process of spur gear blank is […]
Scientific
Feasibility and optimization analysis modeling of spur gear drum blank
In the case of the same volume and the same upper and lower bottom diameter, it is quite cumbersome to […]
Scientific
Numerical simulation and optimization of spur gear drum blank shape
As an analysis method in the process of metal plastic forming, numerical simulation does not need to build physical models, […]
Scientific
Deformation mechanism of spur gear blank
In the rotary forging process of spur gear, the contact area between the swing head and spur gear blank is […]
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Initial conditions for simulation of rotary forging process of spur bevel gears
According to the actual situation in the production and experiment of rotary forging of spur bevel gears, in order to […]
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Reducing energy consumption in ring rolling process of spur gear
Ring rolling module is a special module of DEFORM-3D to simulate spur gear ring rolling process, which is a method […]
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Reducing energy consumption in ring rolling process of spur gear
The advantages of spur gear ring rolling process include shorter production time, better quality, smaller tolerance and saving a lot […]
Scientific
Prediction of pitting life of spur gears
The structural parameters and test parameters of spur gear are as follows: the material of spur gear is 20CrMnTi, the […]
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Comparative wear test of concave bionic spur gear and smooth spur gear
In order to verify the test results of the previous ring block model samples, the size distribution of the pit […]
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Contact problem of automobile spur gear with concave bionic shape
The two-dimensional contact finite element analysis of spur gear meshing can only reflect the change of spur gear contact stress […]
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Two dimensional numerical simulation of contact problem of concave bionic spur gear
The two-dimensional contact numerical simulation of smooth and concave bionic spur gears is carried out by using the finite element […]
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Main shape parameters of spur gear
There are four main shape parameters of spur gears: cumulative pitch error, tooth thickness error, tooth direction error and tooth […]
Scientific
Two dimensional contact finite element analysis of smooth spur gear
Through the three-dimensional numerical simulation of the ring sample, it is concluded that the ring sample with a certain surface […]
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Wear resistance test of concave bionic spur gear
The comparative experimental study on the wear resistance of concave and smooth spur gears is carried out by using the […]
Scientific
3D modeling of modified spur gear based on Pro/E
Pro/E is a parametric modeling software, which can establish the three-dimensional model of spur gear through parameterization, which greatly improves […]
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Spur gear pitting based on multiaxial fatigue criterion
Fatigue pitting caused by the friction between the meshing surfaces of spur gears is one of the main failure forms […]
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Crack propagation analysis and fatigue life prediction of spur gear root
Generally, the models used in simulation analysis are simplified, and it is impossible to fully consider all factors; From the […]
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Propagation analysis of root crack of spur gear
Based on linear elastic fracture mechanics, the crack propagation and life of spur gear root are studied by using the […]
Scientific
Influence of different positions of initial cracks on fatigue life of spur gears
Previously, we used the joint simulation method of ANSYS and FRANC3D to carry out the static analysis of the root […]
Scientific
Large spur gear NC machining machine
After heat treatment, the large spur gear blank enters the processing stage. Before this link is officially carried out, it […]
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Large spur gear machining based on NC machining
Mechanization not only improves the production efficiency and quality, but also greatly avoids the risks in the production process. The […]
Scientific
Stress intensity factors in crack propagation of spur gears
Considering the symmetry of teeth in spur gears, in order to reduce the amount of calculation, one single tooth is […]
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Effect of initial crack location on fatigue life of spur gear
The factors affecting crack growth studied by ZHY gear senior engineer team, such as stress ratio, corrosion environment, crack body […]
Scientific
Prediction of fatigue life of spur gears
Within the range of elastic mechanics, Paris gives the fatigue crack growth rate of spur gear expressed by the formula, […]
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Prediction of fatigue life of spur gears
For the analysis of fatigue crack propagation of spur gears, the calculation of crack propagation life of spur gears is […]
Scientific
Fatigue crack growth rate of spur gear
Within the scope of on-line elasticity, the theory of fatigue crack growth rate of spur gear is mainly Paris theory. […]
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Three dimensional crack propagation analysis of spur gear root
Spur gears are widely used in electric power, chemical industry, petroleum, aerospace, automobile and other fields. Almost all these spur […]
Scientific
Derivation of calculation formula for compound mode crack propagation rate of spur gear
The fatigue crack growth rate of spur gear is the basis for predicting the crack growth life. Paris formula is […]
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Compound crack fracture theory of spur gear
The cracks in practical components are often composite cracks composed of two or more cracks. Considering the random combination of […]
Scientific
Compound crack inclination of spur gear
In the process of three-dimensional composite crack propagation, the existing fracture criteria can not completely and accurately describe the crack […]
Scientific
Stress intensity factors in the process of compound crack propagation of spur gears
In the process of spur gear crack propagation, the stress intensity factor changes with the crack propagation. Compared with the […]
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Research trend of root crack of spur gear
At present, simplified models are used in the research of fatigue crack of spur gear tooth root. In these simplified […]
Scientific
Simulation of compound crack propagation of spur gear
It is necessary to set up the parameters and mechanical model in the crack propagation process of spur gear by […]
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Research status of root crack of spur gear
Most spur gears yield to cyclic load and are widely used in aerospace, wind power generation and other industrial fields. […]
Scientific
Trial production results of spur gear (sun gear)
The combined die is the key component for continuously extruding the external teeth of spur gear. The combined die adopts […]
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Research on fatigue crack of spur gear and existing problems
With the development of mechanics and computer simulation technology, the research on fatigue crack of spur gear has made great […]
Scientific
Preparation of blank for spur gear production
① Hot forging blank The material of spur gear in truck wheel reducer is 20CrMnTi. Solid bar is selected as […]
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Propagation analysis of root crack of spur gear
According to the statistics of scholars, most of the mechanical component failures belong to fatigue failure, accounting for 50% – […]
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Study on continuous cold extrusion process of spur gear (sun gear)
The cold extrusion precision plastic forming technology of spur gear has the advantages of saving materials, improving production efficiency, ensuring […]
Scientific
Continuous extrusion forming of external teeth of spur gear
The continuous extrusion forming process of the external teeth of the spur gear is the same as that described above. […]
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Determination of forming process scheme of spur gear
The three forming process schemes will be comprehensively evaluated and analyzed from the three aspects of material utilization, production efficiency […]
Scientific
Co extrusion process of internal and external teeth of spur gear
In order to clearly see the deformation process of inner and outer teeth in the forming process of spur gear […]
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Numerical simulation of precision forming of spur gear
In recent ten years, with the rapid development of computer hardware and software technology and the in-depth study of material […]