Radial sliding bearing dynamic characteristic testing device based on non-contact electromagnetic vibration exciters
A technology of electromagnetic exciter and dynamic characteristics, which is applied in the direction of mechanical bearing testing, machine/structural component testing, measuring devices, etc. Effectively simulate problems such as operating conditions to achieve the effect of comprehensive measurement functions and wide application conditions
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test example 1
[0024] Test Case 1—Static Loading Test of Radial Rigidity of Radial Sliding Bearing Oil Film
[0025] Utilize the frequency converter to drive the motor to make the rotor 15 work under different speed conditions (such as 300 / 600 / 900 / 1200 / 1500r / min), use the left hydraulic loading device 4 and the right hydraulic loading device 14 to control the left diameter Apply static loads of the same magnitude (such as 10000 / 12500 / 15000 / 17500 / 20000N) to the outer ring of rolling bearing 3 and the outer ring of right radial rolling bearing 13 .
[0026] According to the basic idea of the perturbation method, the left electromagnetic exciter assembly 5 and the right electromagnetic exciter assembly 12 of the test bearing 9 are used to apply a non-contact radial electromagnetic force ( Such as 300 / 500 / 800N), under different rotating speeds and different radial load conditions of the rotor 15, measure the relationship between the output of each displacement sensor and the electromagnetic ex...
test example 2
[0027] Test case 2——Dynamic excitation test of radial stiffness and radial damping of radial sliding bearing oil film
[0028] Utilize the frequency converter to drive the motor to make the rotor 15 work under different speed conditions (such as 600 / 900 / 1200 / 1500r / min), and use the left hydraulic loading device 4 and the right hydraulic loading device 14 to control the left radial rolling bearing respectively 3 The outer ring and the right radial rolling bearing 13 apply the same static load (such as 10000 / 12500 / 15000 / 17500 / 20000N) to the outer ring.
[0029] Utilize the electromagnetic exciter assembly 5 on the left side of the test bearing 9 and the electromagnetic exciter assembly 12 on the right side to apply a certain amplitude (such as 1500N or 2000N) and a certain frequency (such as 8 / 17 / 29Hz) to the rotor 15. With the same frequency sinusoidal excitation force, under the working conditions of different rotational speeds and different radial loads of the rotor 15, the o...
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