Design optimization of magnetorheological damper geometry using response surface method for achieving maximum yield stress

Nanthakumar, A.; Jancirani, J.

doi:10.1007/s12206-019-0828-6

Cited by 21 publications

(9 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Parameters such as flange length, gap width, piston head housing thickness, the radius of piston core, and gap length are often optimized using software before being fabricated. Parlak et al [45] used ANSYS, a finite element software, while Singh et al [46] and Nanthakumar et al [47] used an optimization algorithm to optimize the geometrical parameters of the damper. Basically, in terms of the design, modifications are done to increase the generated magnetic flux density with a given value of applied current.…”

Section: Related Workmentioning

confidence: 99%

Development and Implementation of Energy-Efficient Magnetorheological Fluid Bypass Damper for Prosthetics Limbs Using a Fuzzy-Logic Controller

et al. 2022

View full text Add to dashboard Cite

Walking behaviour in amputees with lower-limb loss is absent from shock-absorbing properties. A damper can be used to reduce the impact of ground reaction force (GRF) during heel strikes. Magnetorheological fluid (MRF) damper is deemed the best option for this application as it includes the advantages of both passive and active dampers. An enhanced MRF damper is essential in supplying the appropriate current and damping force levels. Therefore, an energy-efficient design is required to prolong the battery life used by MRF dampers in prosthetic limbs. This paper investigates two fluids of different properties and magnetic particle volume content. A bypass damper was used to observe the response of both fluids. The findings highlighted that an MRF with a higher percentage of solid weight could produce a more significant damping force with a lesser amount of applied current. This work presents a simulation study on implementing the energy-efficient MRF damper utilizing a Fuzzy-PID controller in a prosthetic limb.

show abstract

Section: Related Workmentioning

confidence: 99%

Development and Implementation of Energy-Efficient Magnetorheological Fluid Bypass Damper for Prosthetics Limbs Using a Fuzzy-Logic Controller

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Kumar et al 5 optimized the geometry of MR damper to obtain the maximum magnetic flux density in the flow damping gap. Nanthakumar et al 6 studied the influence of design variables on the yield stress output response and the interaction relationship between the design variables, and obtained the geometric design variables of the magnetic circuit in the MR damper. Through the full factorial research experimental design, the quadratic expression of the response variable was established and optimized.…”

Section: Introductionmentioning

confidence: 99%

Study on the integrated structure/control design method of magnetorheological damper for improving vehicle posture

Deng

Wei

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part K:

View full text Add to dashboard Cite

In order to achieve a good match between magnetorheological (MR) damper and vehicle Noise Vibration and Harshness (NVH) quality and improve vehicle posture while driving, an integrated design method of MR damper structure/control for vehicle vibration suppression was proposed considering the coupling effect between MR damper structure parameters and controller parameters. A controller was designed to control the damping force generated by the tapered channel MR damper. Furthermore, the damping force expression of the tapered flow mode MR damper was derived, and the damping force was introduced into the vehicle dynamics model. In order to improve the vehicle posture, an integrated structure/control platform combining response surface model, current controller and vehicle dynamics model was established. Based on integrated platform, the vehicle dynamics model and Fourier transform were adopted to extract the time-frequency characteristics of the design objective under different working conditions. In the optimization process, the damper structure was optimized by taking the time domain values as the constraints and the frequency domain values as the optimization goals. The results show that the proposed integrated design method of MR damper can obtain its global optimal structural parameters under different driving conditions. The acceleration root mean square (RMS) values and frequency domain values of vehicle were both reduced to varying degrees, achieving the purpose of improving the vehicle posture.

show abstract

“…This technique can be used to determine the relationship between various design parameters and the desired responses with the advantages of design cycle-shortening and experimental cost-saving. 22–24 Some scholars have tried to apply this technique to the fields relevant to the optimization of spray coatings. 25,26 For example, Müller and Kleinebudde 27 especially conducted a complete 3 2 factorial design of experiment (DOE) to correlate the atomization and pattern air pressure with the spray width using RSM.…”

Section: Introductionmentioning

confidence: 99%

Optimal design of a pneumatic atomizer using response surface method to obtain more uniform coatings

Qiao

Zhu

Liu

2022

Advances in Mechanical Engineering

View full text Add to dashboard Cite

Uneven coatings with overspray often occur to the target plate when using a pneumatic atomizer. This issue is mainly due to the high-level pressure in the plate center, which results from unreasonable design of the structure and operating parameters in atomizer. In this paper, an optimal design for these parameters was established by response surface method (RSM) and computational fluid dynamics (CFD) to produce more uniform coatings. The velocity data measured by a hot-wire anemometry experimentally verified the numerical model. Then, annular air hole diameter, horn flare angle, annular air pressure, and shaping air pressure were selected as design variables while the central pressure was chosen as objective function. The RSM with the central composite design (CCD) was employed to construct the regression equation that expresses the relationship between the central pressure and design parameters. Finally, the optimum combination of the parameters was carried out for reducing the central pressure, and the interaction effects between the parameters were also analyzed. The optimization results show that the central pressure is decreased by 44.6% and the performance of droplet size distribution is significantly improved. The experiment confirmed the effectiveness of the optimized atomizer to obtain well-distributed coatings.

show abstract

Design optimization of magnetorheological damper geometry using response surface method for achieving maximum yield stress

Cited by 21 publications

References 28 publications

Development and Implementation of Energy-Efficient Magnetorheological Fluid Bypass Damper for Prosthetics Limbs Using a Fuzzy-Logic Controller

Development and Implementation of Energy-Efficient Magnetorheological Fluid Bypass Damper for Prosthetics Limbs Using a Fuzzy-Logic Controller

Study on the integrated structure/control design method of magnetorheological damper for improving vehicle posture

Optimal design of a pneumatic atomizer using response surface method to obtain more uniform coatings

Contact Info

Product

Resources

About