Study on adjustable natural frequency of 3D-printed magnetorheological elastomer
ID:99 Submission ID:104 View Protection:ATTENDEE Updated Time:2023-05-10 13:35:52 Hits:534 Poster Presentation

Start Time:2023-06-10 12:12 (Asia/Shanghai)

Duration:1min

Session:[E] Poster » [E] Poster

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Abstract
Study on adjustable natural frequency of 3D-printed magnetorheological elastomer

Rui Wu1*, Bing Chen1#, Zhijun Zhao1, Zhiyang Niy1,


1 Affiliation/Institute Name, Address.
* Presenter: wurui55@mail.nwpu.edu.cn, #Corresponding Author: bingchen72@nwpu.edu.cn

ABSTRACT
Magnetorheological elastomer (MRE) has the characteristic of adjustable stiffness under magnetic field, which makes it widely used in vibration damping components. The use of 3D printing technology can improve the natural frequency adjustable characteristics of MRE by changing its 3D structure. Therefore, in this paper, the study of the natural frequency adjustable characteristics of 3D printing MRE is carried out. The main research and work content of this paper are as follows:
 Firstly, 3D printing platform for MRE was constructed. Based on the rheological properties of the material, the parameters of extrusion speed, nozzle height, nozzle diameter and feed speed suitable for MRE printing were obtained through the experimental study.
 Secondly, the expression of the adjustable property of the natural frequency of MRE is derived by combining the generalized Maxwell viscoelastic model and bipolar model. It is shown that the adjustable property of the natural frequency of MRE increases with the increase of MR Effect. The experimental results show that the MR Effect is higher when the integral number of carbonyl iron powder is 30% and the mass fraction of multi-walled carbon nanotubes is 1.0%.
Finally, the influence of lay-up direction, lay-up Angle and lay-up type on the adjustable natural frequency of 3D printing MRE is analysed by orthogonal experiment. And the results show that the natural frequency of the 3D printing MRE in XY plane has good adjustable characteristics.

Key words3D print; Magnetorheological elastomer; Natural frequency; Material components; Layup structure

Reference:
  1. Weber F. Semi-active vibration absorber based on real-time controlled MR damper[J]. Mechanical Systems and Signal Processing, 2014, 46(2): 272-288.
  2. Li Y, Li J, Li W, et al. A state-of-the-art review on magnetorheological elastomer devices[J]. Smart materials and structures, 2014, 23(12): 123001.
  3. Calascione T M, Fischer N A, Lee T J, et al. Controlling magnetic properties of 3D-printed magnetic elastomer structures via fused deposition modeling[J]. AIP Advances, 2021, 11(2): 025223.
  4. Hong S W, Yoon J Y, Kim S H, et al. 3D-Printed Soft Structure of Polyurethane and Magnetorheological Fluid: A Proof-of-Concept Investigation of its Stiffness Tunability[J]. Micromachines, 2019, 10(10):655.
  5. Qi S, Guo H, Fu J, et al. 3D printed shape-programmable magneto-active soft matter for biomimetic applications[J]. Composites Science and Technology, 2020, 188: 107973.
Keywords
3D printed,Magnetorheological elastomer,Natural frequency,Material components
Speaker
Rui Wu
undergraduate Northwestern Polytechnical University

Submission Author
Rui Wu Wu Northwestern Polytechnical University
Bing Chen Chen Northwestern Polytechnical University
Zhijun Zhao Zhao Northwestern Polytechnical University
Zhiyang Niu Niu Northwestern Polytechnical University
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