Experimental Investigation of Damping Effect in Semi-active Magnetorheological Fluid Sandwich Beam Under Non-Homogeneous Magnetic Field

Kolekar, Shreedhar; Venkatesh, Krishna

doi:10.1007/s42417-019-00093-5

Cited by 17 publications

(6 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Due to their characteristics MR materials can be used in absorbers and isolators in different areas. MR fluids are used in dampers [15][16], rotary brakes and clutch systems [17], sandwich structures for vibration control of flexible structures [18], etc. On the other hand, MR elastomer applications can be seen in vibration isolators [19], dampers [20], etc.…”

Section: Application Of Mr Materials In Soft Robots 31 Absorbers Sementioning

confidence: 99%

State of the art of soft robotic applications based on magneto-rheological materials

Gutenko

2020

MATEC Web Conf.

View full text Add to dashboard Cite

Soft robotics is a new and exciting field of robotics which heavily relies on compliant materials. Soft robots attempt to copy the motion of living organisms and their adaptation mechanisms to the environment. New efforts in this field have paved way for the use of specific materials, e.g. electroactive polymers and/or magnetoactive (magnetorheological) MR elastomers. In this paper the author discusses the fundamental characteristics of MR fluids and elastomers, that allow them to be used as elements/components of soft robots. The advantages of using soft robots and the scope of applications for such robots are presented. The advantages and disadvantages of using MR fluids and elastomers in such soft robots are also considered. The history of the development of the idea of using MR fluids and elastomers in soft robots is presented, too. Possible applications for soft robots based on MR fluids and elastomers are considered. Various solutions for constructing a robotic gripper using MR fluids and elastomers are presented. Based on the above solutions, an analysis is made of the development of such technologies and the main problems are identified that will be the goal of solving them in the near future.

show abstract

Section: Application Of Mr Materials In Soft Robots 31 Absorbers Sementioning

confidence: 99%

State of the art of soft robotic applications based on magneto-rheological materials

Gutenko

2020

MATEC Web Conf.

View full text Add to dashboard Cite

show abstract

“…Vibrational analysis of MR materials‐based structures with plate geometry was also reported in the literature with aluminum, [ 20–23 ] polymer composites, [ 24–30 ] and polyethylene terephthalate. [ 31 ] Other geometries, including circular plate, [ 32 ] cylindrical shell, [ 33,34 ] and panel, [ 35,36 ] were analyzed for vibration characteristics with MR materials. Natural frequencies change as the strength of the magnetic field change according to the results of MR Fluids analysis of sandwich structures.…”

Section: Introductionmentioning

confidence: 99%

Investigation of damping characteristics on PLA robotic gripper fingers with magnetorheological fluid core and unimorph piezoelectric MFC

Ramkumar¹,

Jesu²,

Marimuthu³

2022

Polymer Engineering & Sci

View full text Add to dashboard Cite

Polylactic acid (PLA) is an environmentally friendly, biodegradable, and lowcost thermoplastic material suitable for 3D printing. Complex shapes can be easily produced and hence PLA has been used for many applications. This study presents the damping characteristics of two robotic gripper fingers. The first gripper is composed of a PLA surface layer and a magnetorheological (MR) fluid core and the second gripper is composed of a PLA surface layer bonded to a surface of unimorph piezoelectric Macro Fiber Composite (MFC).The magnetic field is applied by using permanent magnets while the magnetic field strength is varied by changing the distance between the permanent magnets. The electric field is applied by using a micro-amplifier and regulated using data acquisition systems. The natural frequency and damping ratio of the PLA gripper finger are determined by free vibration analysis using LabVIEW software. The damping ratio and vibration amplitude suppression for the PLA grippers was increased as the magnetic field strength changed from 0G to 600G (MR) and as the electric field changed from 0V to 360V (MFC).

show abstract

“…It was determined that the natural frequencies shifted to higher frequencies and the loss factor of the MRF sandwich beams increased with increase in the magnitude of magnetic field. Kolekar and Venkatesh [17] determined the dynamic behavior of MRF sandwich beam under different-localized magnetic fields. It was concluded that there is a shift in the natural frequency and decrease in vibration amplitude, while there is a decrease in loss factor.…”

Section: Introductionmentioning

confidence: 99%

Dynamic behavior of sandwich beams with different compositions of magnetorheological fluid core

Acharya

Allien

Puneet

et al. 2021

International Journal of Smart and Nano Materials

View full text Add to dashboard Cite

Experimental Investigation of Damping Effect in Semi-active Magnetorheological Fluid Sandwich Beam Under Non-Homogeneous Magnetic Field

Cited by 17 publications

References 44 publications

State of the art of soft robotic applications based on magneto-rheological materials

State of the art of soft robotic applications based on magneto-rheological materials

Investigation of damping characteristics on PLA robotic gripper fingers with magnetorheological fluid core and unimorph piezoelectric MFC

Dynamic behavior of sandwich beams with different compositions of magnetorheological fluid core

Contact Info

Product

Resources

About