Optimal design of conical springs

Paredes, Manuel; Rodriguez, Emmanuel

doi:10.1007/s00366-008-0112-3

Cited by 21 publications

(12 citation statements)

References 5 publications

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“…It shows that the maximum error between simulation and experimental results was 4.6 %. V. Yildirim [11,12], has developed free vibration equations for cylindrical isotropic helical springs loaded axially and solved numerically based on the transfer matrix method to perform buckling analysis in a dynamic manner. The axial and shear deformation effects together with rotator inertia effects are all considered based on the first order shear deformation theory.…”

Section: Literature Reviewmentioning

confidence: 99%

Comparison of Cylindrical and Conical Helical Springs for their Buckling Load and Deflection

Patil¹,

Reddy²,

Laxminarayana³

2014

IJAST

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Section: Literature Reviewmentioning

confidence: 99%

Comparison of Cylindrical and Conical Helical Springs for their Buckling Load and Deflection

Patil¹,

Reddy²,

Laxminarayana³

2014

IJAST

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“…The deterministic optimization (DO) of spring design is studied in many works. Paredes and Rodriguez [22] studied the optimal design of conical springs. In [23], the optimal design of composite material tubular helical springs has been studied.…”

Section: The Nes Systemmentioning

confidence: 99%

Robustness and reliability investigations on a nonlinear energy sink device concept

Braydi

Gogu

Paredes

2020

Mechanics & Industry

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In this work, the reliability and robustness of a nonlinear energy sink device concept are investigated. The system is studied and optimized in deterministic and probabilistic cases. It is also studied under various types of uncertainty modelings with different reliability based robust design optimization formulations. The obtained results reveal the sensitivity of the device to the input uncertainties. The optimal designs obtained with the formulation under uncertainties are very different from the deterministic optimal design. New system configurations are obtained which ensure robust, highly reliable designs. In addition, a comparison is made between the different formulations and a conclusion is drawn about the suitable formulations for such a problem.

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“…approach to determine the appropriate r s to maximize F min during the sealed state. The work proposed in [42] is employed. We would, however, derive the relationship of fluxes by the duality circuit instead and take the core permeability into account.…”

Section: A5 Shading Coil Effects This Section Describes Anmentioning

confidence: 99%

An improved AC electromagnetic contactor model based on EMTP

Saengsuwan

2017

IEEJ Transactions Elec Engng

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This paper presents a new simulation approach of an AC electromagnetic contactor based on the Electromagnetic Transient Program (EMTP). To decouple the simulation from the magnetic circuit, the duality transformation technique is applied to transform the magnetic model into an electrical model. With this technique, the solutions of the proposed model are only on electric circuit, and model can interface directly with the surrounding components in EMTP. To enhance the model precision, both saturation and fringing flux effects are taken into account. Additionally, the estimation of general unknown parameters, namely shading ring resistance and load force, is proposed. The performance and accuracy of the proposed model are verified by comparing with finite element method (FEM) results and experiments. Finally, the model is applied for the case study of the sensitivity of a contactor during voltage sag. The results demonstrate good performance of the proposed model, and the approach can be further extended to other electromagnetic devices.

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Optimal design of conical springs

Cited by 21 publications

References 5 publications

Comparison of Cylindrical and Conical Helical Springs for their Buckling Load and Deflection

Comparison of Cylindrical and Conical Helical Springs for their Buckling Load and Deflection

Robustness and reliability investigations on a nonlinear energy sink device concept

An improved AC electromagnetic contactor model based on EMTP

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