How to optimize a flywheel rotor in multidimensional space?
We first build the shape optimization model of flywheel by parametric geometry modeling method with the objective to maximize the energy density of a flywheel rotor. Then the downhill simplex method is adopted to solve the nonlinear optimization problem in multidimensional space.
How to increase the energy storage density of flywheel rotors?
To increase the energy storage density, one of the critical evaluations of flywheel performance, topology optimization is used to obtain the optimized topology layout of the flywheel rotor geometry.
How to optimize flywheel rotor topology?
Based on the variable density method, a two-dimensional flywheel rotor topology optimization model is first established and divided into three regions: design domain, inner ring, and outer ring. Then the optimized flywheel topology layout can be obtained through the post-processing combined with the finite element analysis.
How to solve the excessive vibration of an energy storage flywheel rotor?
Part of the book series: Mechanisms and Machine Science ( (Mechan. Machine Science,volume 140)) To solve the excessive vibration of an energy storage flywheel rotor under complex operating conditions, an optimization design method used to the energy storage flywheel rotor with elastic support/dry friction damper (ESDFD) is proposed.
Are energy storage Flywheel rotors more sensitive to unbalance?
The following conclusions are drawn from the work: The energy storage flywheel rotor with ESDFDs designed by the optimization design method of this paper is less sensitive to the unbalance and the damping performance of ESDFDs is improved by 25% –40%.
How to design a flywheel rotor?
The flywheel rotor can be formed by spline curve fitting method (Lu and Milios 1994) with a series of control points evenly distributed in radial direction. Then we build the optimization design program for the objective maximizing the energy storage density with the size and stress constraint.
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Topology optimization of energy storage flywheel
solid rotor (see Fig. 2). The kinetic energy, E k,storedinthe flywheel rotor can be expressed as: E k ¼ 1 2 Iω2 ð2Þ where I is the inertia of flywheel rotor and ω is the rotating speed. Then the energy density, e, is expressed as: e ¼ E k m ¼ 1 2 I m ω2 ð3Þ where m is the mass of flywheel rotor. When the rotating speed is previously ...
Learn More →Design and Optimization of an External Rotor Ironless BLDCM Used …
Based on the application requirements of a flywheel energy storage system, an external rotor ironless brushless dc machine (BLDCM) is designed and optimized. The finite element method …
Learn More →Shape optimization of energy storage flywheel rotor
Shape optimization of energy storage flywheel rotor L. Jiang 1 & W. Zhang 1 & G. J. Ma 1 & C. W. Wu 1 Received: 21 January 2016/Revised: 13 March 2016/Accepted: 9 June 2016/Published online: 17 ...
Learn More →Design optimization and fabrication of a hybrid composite flywheel rotor
Design optimization of rotor cases. In the design cases, rims may vary with respect to thickness, volume ratio of reinforcement and interference for press fit. Therefore, optimization is essential for the selection of appropriate values. ... Various flywheel energy storage research groups [13,22,33,82,96–103] and industrial products [12,25,34 ...
Learn More →Vibration Reduction Optimization Design of an Energy Storage Flywheel ...
To solve the excessive vibration of an energy storage flywheel rotor under complex operating conditions, an optimization design method used to the energy storage flywheel rotor with elastic ...
Learn More →Shape Optimization of Rotor for Flywheel Energy …
A Flywheel Energy Storage System (FESS) is a big mechanical battery which operates by storing electrical energy from a motor in the form of kinetic energy. Different parts of FESS are •Rotor •Shaft •Bearings •Motor/generator •Vacuum container G. Genta, "Theory and Practice of Advanced Flywheel Systems," in Kinetic Energy Storage, vol ...
Learn More →Rotor Design for High-Speed Flywheel Energy Storage …
rotor design is therefore the reduction of radial tensile stresses. Researchers have proposed and implemented several solutions to this design problem based on material …
Learn More →Mechanical design of flywheels for energy storage: A review …
Design optimization of transversely laminated synchronous reluctance machine for flywheel energy storage system using response surface methodology. IEEE Trans Ind Electr. DOI: 10.1109/TIE.2017.2716877. ... Wen S. Analysis of maximum radial stress location of composite energy storage flywheel rotor. Arch Appl Mech 2014; 84: 1007–1013. Crossref ...
Learn More →Design Optimization of a Rotor for Flywheel …
The aim of this study is to design and shape optimization of flywheel rotor with different combinations of diameter and height with constant rotational speed, energy storage capacity...
Learn More →Nonlinear dynamic characteristics and stability analysis of energy ...
Many scholars have studied the dynamic characteristics of the flywheel rotor. Tang et al. established the dynamic model of the flywheel energy storage system, and calculated the critical speed, modal shape and modal damping ratio at different speeds [4], [5].Long et al. developed the nonlinear dynamics model of dual-mass flywheel and analyzed the influence of …
Learn More →Rotor Design and Optimization of Metal Flywheels
Request PDF | Rotor Design and Optimization of Metal Flywheels | Flywheel energy storage systems (FESS) are short to medium duration energy storage devices capable of delivering large bursts of power.
Learn More →Stress constrained topology optimization of energy storage …
A variable density, stress-constrained topology optimization approach is used, along with the solid isotropic material with penalization (SIMP) power law and a P-norm aggregated global stress measure to optimize the rotor of a flywheel energy storage systems (FESS). A new specific energy maximization optimization formulation is proposed which …
Learn More →Shape optimization of energy storage flywheel rotor
Then the downhill simplex method is adopted to solve the nonlinear optimization problem in multidimensional space. Finally, we obtain the optimized shapes of flywheel rotor which could significantly improve the energy storage capability and working safety performance compared with the traditional design flywheel of constant thickness rotor.
Learn More →Optimization of cylindrical composite flywheel rotors for energy storage
1.1 Context. Much of the groundwork for the study of flywheel rotor optimization was laid during the 1980''s by Giancarlo Genta. His text (Genta 1985) on flywheel energy storage arguably remains one of the best cited publications in this field.His work is focused largely, though not exclusively, on isotropic rotors and the search for an optimal geometry for a given material …
Learn More →This paper analyzes the energy storage density, material strength requirement and kinetic energy storage material cost of typical high strength steel disk flywheel. Based on the requirements of heat treatment hardenability and …
Learn More →Rotor Design for High-Speed Flywheel Energy …
PDF | On Sep 22, 2011, Malte Krack and others published Rotor Design for High-Speed Flywheel Energy Storage Systems | Find, read and cite all the research you need on ResearchGate
Learn More →Shape Optimization of Rotor for Flywheel Energy …
A Flywheel Energy Storage System (FESS) is a big mechanical battery which operates by storing electrical energy from a motor in the form of kinetic energy. Different parts …
Learn More →DESIGN OF ENERGY STORAGE FLYWHEEL ROTOR SUPPORTING STRUCTURE AND VIBRATION DAMPING UNDER COMPLEX OPERATING CONDITIONS[J]. Acta Energiae Solaris Sinica, 2024, 45(4): 356-364.
Learn More →A review of flywheel energy storage rotor materials and …
The high cost of flywheel energy storage per kilowatt hour is one of the key factors restricting its promotion and application. Therefore, the selection of appropriate rotor materials and the design of rotor structure are the key to reducing the cost of flywheel energy storage, which is crucial for the promotion of flywheel energy storage.
Learn More →Topology optimization of energy storage flywheel
To increase the energy storage density, one of the critical evaluations of flywheel performance, topology optimization is used to obtain the optimized topology layout of the …
Learn More →Dynamic characteristics analysis of energy storage flywheel motor rotor ...
The air-gap eccentricity of motor rotor is a common fault of flywheel energy storage devices. Consequently, this paper takes a high-power energy storage flywheel rotor system as the research object, aiming to thoroughly study the flywheel rotor''s dynamic response characteristics when the induction motor rotor has initial static eccentricity. Firstly, the formula of unbalanced …
Learn More →Topology Optimization of a Flywheel Energy Storage …
Abstract—This paper deals with topology optimization of the rotor of a flywheel energy storage system (FESS). For isotropic materials the constant stress disc (CSD) is the …
Learn More →Rotor Design for High-Speed Flywheel Energy Storage Systems
In multi-fidelity Rotor Design for High-Speed Flywheel Energy Storage Systems Energy Storage Systems Rotor Design for High-Speed Flywheel 65 25 models, the approximation is usually a simplified version, i.e. a lower fidelity model, of the original problem such as a one-dimensional simplification of the multi-dimensional flywheel problem.
Learn More →Analysis and optimization of a novel energy storage …
It is found that the shaftless flywheel design approach can double the energy density level when compared to typical designs. The shaftless flywheel is further optimized using finite element analysis with the magnetic bearing and motor/generators'' design considerations. Keywords: Battery, Energy storage flywheel, Shaft-less flywheel, Renewable ...
Learn More →Analysis and optimization of a novel energy storage flywheel …
Kinetic/Flywheel energy storage systems (FESS) have re-emerged as a vital technology in many areas such as smart grid, renewable energy, electric vehicle, and high-power applications.
Learn More →Rotor Design for High-Speed Flywheel Energy Storage …
Rotor Design for High-Speed Flyheel Energy Storage Systems 5 Fig. 4. Schematic showing power flow in FES system ri and ro and a height of h, a further expression for the kinetic energy stored in the rotor can be determined as Ekin = 1 4 ̺πh(r4 o −r 4 i)ω 2. (2) From the above equation it can be deduced that the kinetic energy of the rotor increases
Learn More →On determining the optimal shape, speed, and size of metal flywheel ...
Flywheel energy storage systems (FESS) are devices that are used in short duration grid-scale energy storage applications such as frequency regulation and fault protection. The energy storage component of the FESS is a flywheel rotor, which can store mechanical energy as the inertia of a rotating disk. This article explores the interdependence of key rotor …
Learn More →General Design Method of Flywheel Rotor for Energy Storage …
Flywheel rotor design is the key of researching and developing flywheel energy storage system.The geometric parameters of flywheel rotor was affected by much restricted …
Learn More →FEA and Optimization of Flywheel Energy Storage …
FEA and Optimization of Flywheel Energy Storage System Aakash B Rajan1, Parth H Patel2, Dr. Tushar M Patel3 1M.E. Scholar, Mechanical Engineering Department, LDRP-ITR, ... BAI et al. (2008) proposed a method to design a flywheel rotor composed of composite rim and a metal hub by studying the connection between the rotor and the driving machine ...
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