spur gear

The rotor with contact seal is taken as the research object. The simplified model is shown in Fig. 1. The

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

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

In gear meshing drive, in order to avoid jamming, clearance between tooth profiles must be left, which is an important

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

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

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

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