Analyze the time-domain curve of meshing stiffness and meshing force of the gear under the optimal modification amount, and compare […]
The modification length is 2.8mm, the change range of modification amount is [0, 0.05mm], and the value interval is 0.02mm. […]
There are many types of profile modification curves. According to the different functional forms of the modification quantity with respect […]
Determining the profile modification quantity is a complicated problem. If the profile modification quantity is too large, the coincidence degree […]
For single-stage gear drive system, the influence laws of dynamic load and its parameters are analyzed under steady-state and no-load […]
For single-stage gear drive system, engine excitation is taken as input condition, dynamic characteristics and parameter influence rules under steady-state […]
Nonlinear dynamic model of yaw-torsion coupling was established for involute spur fixed-shaft gear drive and planetary gear drive respectively, and […]
Nonlinear dynamic model of yaw-torsion coupling was established for involute spur fixed-shaft gear drive and planetary gear drive respectively, and […]
Nonlinear dynamic model of yaw-torsion coupling was established for involute spur fixed-shaft gear drive and planetary gear drive respectively, and […]
The innovations of the research work can be summarized as follows: (1) The coupling relationship between the acting direction of […]
Nonlinear dynamic model of yaw-torsion coupling was established for involute spur fixed-shaft gear drive and planetary gear drive respectively, and […]
Gears are wheel-shaped mechanical parts that transmit torque by whistling closure of teeth.Gears can change speed and torque, direction of […]
(1) Deep analysis of tooth bias torque caused by deformation of drive shaft and bearing and tooth error is introduced […]
In gear meshing drive, in order to avoid jamming, clearance between tooth profiles must be left, which is an important […]
Firstly, under the quasi-static condition, the influence of tooth profile modification parameters on meshing stiffness and load distribution coefficient between […]
ISIGHT software is a multi-disciplinary optimization software which integrates industrial optimization design and automatic analysis and calculation, which is introduced […]
The relationship between dynamic load of gear drive system and modification parameters is very complex. When two or more modification […]
The modification quantity is 0.22mm and the length is 2.8mm. The modification types are linear modification, parabolic modification and conic […]
In the research of tooth profile modification, the influence of tooth profile modification on the strength of gear teeth is […]
With parabolic modification, the dynamic load coefficient changes with the modification amount under different modification lengths as shown in the […]
Linear modification is adopted, and the value range of modification amount is [0, 0.05mm], and the value interval is 0.002mm. […]
Linear modification is adopted with the modification quantity of 0.022m m and the length of 2.8m M. Fixed torque of […]
Linear shape modification is adopted with the amount of 0.022mm. The value range of the length of the modification is […]
Linear shape modification is adopted with the length of 2.8mm and the value range of modification is [0.01mm, 0.09mm]. The […]
In the research of profile modification based on static characteristics, the selection criteria of profile modification length mostly adopt the […]
The time history of each variable can be obtained directly by numerical integration. The response type of the system can […]
There may be four kinds of motion forms in gear transmission non-linear system: periodic motion, double periodic motion, quasi-periodic motion […]
Under no-load condition, gear has two-sided impact phenomena and frequently falls out of teeth. Maximum dynamic meshing force and root […]
Vibration characteristics of two-stage fixed-shaft gear drive system and single-stage planetary gear drive system were tested, and the correctness of […]
The bearings and gears are simplified as concentrated mass points and the rolling bearings are simplified as isotropic elastic supports.A […]
1.The cut-off frequency of low-pass filtering for strain test data is 3kHz of sampling frequency of dynamic strain gauge. 2.As […]
According to the test results of torsional shear strain of drive shaft, the torsional shear stress is calculated by formula […]
The transverse displacement test principle of the drive shaft is shown in the figure.O-point is the center position of the […]
According to the test results of transverse vibration displacement of transmission, the displacement of axle in test direction is calculated […]
For acceleration, the main reasons for errors between simulation results and test results are as follows: 1.The parameters such as […]
Torsional angular acceleration of gears 1 and 4 can be obtained by substituting acceleration test results of each gear into […]
1.The acceleration test signal is filtered with low-pass filter whose cut-off frequency is 10kHz, the highest response frequency of the […]
If there is tooth profile modification, the dynamic boundary condition of the modification area should be added on the basis […]
In order to obtain the dynamic engagement stiffness in the process of gear transmission, besides determining the engagement positions, the […]
Abroad, it is first pointed out that the load of the gear changes in a stepped manner. This method can […]
The experimental research shows that the gear transmission system shows obvious non-linear vibration characteristics, and the traditional linear model can […]
The engagement position of individual gear teeth during gear transmission can be determined by analysis.In order to ensure the continuity […]
The engagement stiffness of the gear pair is calculated by applying the rotating speed of 2000r / min on the […]
Most gear dynamic models assume that the meshing force is evenly distributed along the tooth width direction, but during actual […]
Gear modification is a key technology to reduce vibration, noise and improve reliability of gear transmission system.Since the tooth profile […]
The engagement state of the tooth surface can be determined by the formula at any time during the transmission process.From […]
It can be seen from the analysis that the dynamic boundary conditions α B (T) and the dynamic boundary conditions […]
The three-dimensional solid model of involute spur gear drive is shown in the figure, and the following assumptions are used […]
During gear transmission, changes in center distance cause changes in the direction of the engagement line, resulting in the actual […]
According to the method used in establishing dynamic model, the dynamic model of gear transmission system can be divided into […]
The experimental study on gear transmission system can repeat the same test condition several times, thus helping researchers to find […]
For involute spur fixed-shaft gear drive and planetary gear drive respectively, a nonlinear dynamic model of yaw-torsion coupling was established […]
In fact, the engagement parameters such as engagement angle, clearance and time-varying rigidity of gears are affected to some extent […]
For involute spur gear drive and planetary gear drive, the yaw-torsion coupling non-linear dynamic model including the dynamic changes of […]
(1) Nonlinear dynamic model of yaw-torsion coupling of involute spur gear drive For involute spur fixed-shaft gear drive and planetary […]
Nonlinear factors such as backlash and time-varying meshing stiffness inevitably exist in gear meshing process, which belongs to the research […]
Before 1950s, gear dynamics was based on impact theory, and meshing impact was used as the basis to describe and […]
The figure shows the distribution cloud of the tooth surface contact temperature on the lubricant viscosity and the tooth side […]
The figure shows the distribution cloud of the tooth contact temperature in the clearance plane between the torque and the […]
The figure shows torque T=10 N_m for four different lubrication states and oil viscosity 0=0.033At Pa_s, the distribution cloud of […]
