Experimental study of symmetrical ferrofluid seals with single magnetic source and small clearance

Liu, Yang; Yang, Xiaolong; Dou, Xuankai; Han, Leigang

doi:10.1016/j.triboint.2024.109467

Cited by 12 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This research can be used to solve the control precision in the movement process of the hydraulic lifting platform, so as to improve the operation stability of the lifting platform. Strecker [17] et al analyzed the impact of material and shape on response time, indicating that the response time was below 2.5 ms. Wang [18][19][20][21][22] et al designed a MR valve with annular and radial flow channels and confirmed that radial gaps are more efficient and controllable. In conclusion, prior research on MR valves has primarily centered on their individual performance, with comparatively fewer investigations into the application of these valves within larger systems.…”

Section: Introductionmentioning

confidence: 94%

Experimental study of hydraulic lifting platform based on multi-ring disc magnetorheological valve

Cao,

Xie,

Huang

et al. 2024

Phys. Scr.

Self Cite

View full text Add to dashboard Cite

To enhance the operational capabilities of a hydraulic lifting apparatus, a hydraulic lifting platform was engineered based on a a multi-ring disc magnetorheological valve. The pressure drop characteristics of the multi-ring disc magnetorheological valve were determined through theoretical analysis, supplemented by magnetic field simulations to assess its performance. The effects of different currents on the stability and response time of the hydraulic lifting platform are studied, and the control accuracy of the hydraulic lifting platform position is verified. The results show that the saturation current of the magnetorheological valve is 2.5 A. The addition of current to the magnetorheological valve leads to a rapid increase in both actuator speed and acceleration, which then levels off. Similarly, the response time of the actuator decreases with an increasing current until it stabilizes. At a coil current of 1.5 A, the actuator achieves a speed of approximately 86 mm/s, an acceleration of approximately 105 mm/s², and a response time of approximately 7.15 s. Furthermore, the lifting position accuracy of the hydraulic lifting platform is ±1 mm.

show abstract

Section: Introductionmentioning

confidence: 94%

Experimental study of hydraulic lifting platform based on multi-ring disc magnetorheological valve

Cao,

Xie,

Huang

et al. 2024

Phys. Scr.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Magnetorheological fluids are very sensitive to magnetic fields and can be transformed from a freeflowing Newtonian fluid to a Bingham fluid with shear yield stress under the action of a magnetic field. It can be used in vibration damping and sealing applications [1,26] The magnetorheological damper is a semi-active intelligent vibration damping device developed by applying the characteristics of the magnetorheological fluid, which has the advantages of fast response speed, large output damping force, and a wide range of adjustable damping. Meanwhile, magnetorheological fluid can be used as a sealing field because of its fast response speed .…”

Section: Introductionmentioning

confidence: 99%

Design and damping performance analysis of a multistage meandering hybrid valved magnetorheological damper

Zhu,

Yang,

Xie

et al. 2024

Phys. Scr.

Self Cite

View full text Add to dashboard Cite

The current valved magnetorheological damper has a low space utilization of the piston head, which results in insufficient output damping force, and this paper proposed a multistage meandering hybrid valved magnetorheological damper. The three-dimensional structure of the damper is established and its mathematical model is derived. The electromagnetic field finite element analysis was used to simulate the damper structure, and a comparison was made between the results of traditional annular valve structures and those of multistage meandering hybrid valve. The damping performance of a multistage meandering hybrid valved damper was experimentally studied. The results indicate that the maximum output damping force of the multistage meandering hybrid valved structure is increased by 62.2% over the traditional annular valved structure at a current of 2.4 A and a coil turn count of 350 turns. The structure can effectively utilize the piston head space and improve the output damping force of the damper. The output damping force of the damper reaches 486.4N and the adjustable coefficient K reaches 8.6. The numerical simulation results are the same as the actual experimental results.

show abstract

“…Numerous intelligent magneto-rheological (MR) devices, including MR dampers, MR brakes, MR clutches, and so on, have been developed based on the magneto-rheological effect of MR fluids [5][6][7]. Of these, MR dampers have been developing at an unusually quick pace due to their multiple applicability and controllability [8].…”

Section: Introductionmentioning

confidence: 99%

Design and experimental analysis of magneto-rheological damper featuring a labyrinthic dual-channel valve

Yang,

Li,

et al. 2024

Smart Mater. Struct.

Self Cite

View full text Add to dashboard Cite

For the sake of improving the damping performance of the cab suspension system, the MR damper featuring the labyrinthic dual-channel valve (LDCV-MRD for short) is proposed in this paper, which is composed of a mixture of circular channel, circular disk channel and circular tube channel. The LDCV-MRD is designed structurally, and the magnetic circuit is analyzed. The output damping force mathematical model is established, and the coil's number of turns is computed. The magnetic field in the damping channel of LDCV-MRD is simulated and analyzed. The processed and fabricated LDCV-MRD is tested, and the experimental results are compared and analyzed with the simulation results. The results show that the simulated values of the maximum damping force and the adjustable coefficient fit well with the experimental results. The peak output damping force of the experiment achieves 21008N.The adjustable coefficient reaches about 5.61, when the input current gets to 2A.

show abstract

Experimental study of symmetrical ferrofluid seals with single magnetic source and small clearance

Cited by 12 publications

References 14 publications

Experimental study of hydraulic lifting platform based on multi-ring disc magnetorheological valve

Experimental study of hydraulic lifting platform based on multi-ring disc magnetorheological valve

Design and damping performance analysis of a multistage meandering hybrid valved magnetorheological damper

Design and experimental analysis of magneto-rheological damper featuring a labyrinthic dual-channel valve

Contact Info

Product

Resources

About