Meshing phase calculation of Spur Planetary Gear System
The meshing phase relationship of planetary gears can be determined according to the position angle of planetary gears and the […]
The meshing phase relationship of planetary gears can be determined according to the position angle of planetary gears and the […]
In essence, stiffness excitation is a kind of parametric excitation based on the number of teeth. In the process of […]
The meshing frequency of gears refers to the meshing times of teeth in unit time. For NGW type planetary gear […]
From the point of view of vibration theory, gear transmission system is more complex than ordinary mechanical system, and the […]
As shown in the figure is the structural diagram of the straight gear planetary gear transmission system. The planetary carrier […]
As a complex sealed rotor system, the theoretical analysis and research of the system are carried out, and the related […]
Based on the dynamic theory, the planetary gear speed increasing system and the rotor system with contact seal are analyzed […]
The physical quantity measured by the sensor is the radial vibration acceleration signal of the rotor in the sealing tester, […]
Considering the gear meshing characteristics of the seal rotor system dynamic characteristics test device, the actual photos and overall structure […]
Considering that the test system is more complex, it is affected by many objective factors such as the accessories of […]
The number of planetary gears is n = 3, the comprehensive meshing error amplitude is e = 10 μ m, […]
The physical quantity measured in the test is mainly the radial vibration of the rotor in the sealing tester. Therefore, […]
The rotor with contact seal is taken as the research object. The simplified model is shown in Fig. 1. The […]
The sealed rotor system considering gear meshing characteristics is a complex mechanical system composed of gear pairs, rotors, seals and […]
The planetary gear transmission system studied in this paper has fixed inner gear ring, planetary carrier and sun gear as […]
As shown in the figure, the relative position relationship of each gear is in the meshing state. (1) Projection of […]
The reason why the contact seal can play a sealing role is that the contact between the seal and the […]
As shown in the figure, the relative position relationship of each gear is in the meshing state. (1) Projection of […]
In order to carry out dynamic analysis of the system, this section first analyzes the acceleration of each component in […]
From the point of view of vibration theory, gear transmission system is more complex than ordinary mechanical system, and the […]
As shown in the figure is the translation torsion coupling dynamic model of the spur gear transmission system established in […]
In essence, stiffness excitation is a kind of parametric excitation based on the number of teeth. In the process of […]
The model of gear transmission system is the expression of system mechanics and mathematics, and is the basis of gear […]
Damping is an important introduction in the study of gear system dynamics. Because the damping value of gear system meshing […]
The meshing phase relationship of planetary gears can be determined according to the position angle of planetary gears and the […]
In the process of actual processing and installation of gears, it is inevitable to produce a variety of errors. These […]
According to Hertz law, the elastic compression of two isotropic elastic bodies can be described by two projectile near the […]
As shown in Fig. 1, the sketch of gear meshing pair with backlash is used to reserve the side clearance […]
Based on the energy method, the relationship between the z-contact stiffness, bending stiffness, shear stiffness, radial compression deformation stiffness and […]
(1) Design variables The design variables of static performance optimization model and dynamic performance optimization model are the same. (2) […]
Based on the dynamic and static characteristics, the optimization model of tooth profile modification is established, and the optimization design […]
Firstly, the engagement process of the gear is analyzed. The engagement state and force diagram of the gear is shown […]
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 […]