Multiobjective Optimization Design of Double-Row Blades Hydraulic Retarder with Surrogate Model

Liu, Chunbao; Linshan, Ge; Ma, Wenxing; Li, Xuesong

doi:10.1155/2014/508185

Cited by 10 publications

(3 citation statements)

References 29 publications

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“…The basic performance requirements of hydrodynamic retarders are good braking performance at low speeds, a quick response system, smooth braking torque, and good thermal decay performance [18]. To propose the criteria from multiple angles, a detailed literature search focusing on concepts related to braking performance evaluation was conducted.…”

Section: Evaluation Criteriamentioning

confidence: 99%

Comprehensive Evaluation of Hydrodynamic Retarders with Fuzzy Analytic Hierarchy Process and Improved Radar Chart

Wang,

Wei,

Chen

et al. 2023

Machines

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The braking performance of hydrodynamic retarders is critical for the safety and economy of heavy-duty vehicles. In order to effectively improve the braking system to meet the needs of the market, an evaluation method for quantifying the performance of hydrodynamic retarders is imperative. In this paper, ten evaluation criteria are put forward according to relevant national standards and market requirements, then the scores corresponding to these criteria are obtained by performance bench test. A fuzzy modification of the analytic hierarchy process (AHP) method is applied to determine the relative weights of the chosen evaluation criteria, where uncertain and imprecise judgments of decision-makers are translated into fuzzy numbers. Furthermore, the improved radar chart method is used to comprehensively evaluate and rank the braking performance of three types of hydrodynamic retarders as an empirical example. In addition, the weight sensitivity analysis is conducted to examine the robustness of the ranking results. The results show that the proposed method is effective and feasible. It provides a reference for multi-objective optimization control strategies and structure designs of hydrodynamic retarders.

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Section: Evaluation Criteriamentioning

confidence: 99%

Comprehensive Evaluation of Hydrodynamic Retarders with Fuzzy Analytic Hierarchy Process and Improved Radar Chart

Wang,

Wei,

Chen

et al. 2023

Machines

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“…A hydraulic retarder is a typical rotor-stator fluid machinery, which consists of a pump (rotor) and a turbine (stator). Lately, the reported studies involving hydraulic retarders still indicated that RANS, such as standard k-ε (Chen et al , 2016; Chunbao et al , 2015), realizable k – ε (Chunbao et al , 2015), renormalization-group k – ε (Liu et al , 2015b) and SST(Mu et al , 2016), played an important role in its internal flow calculation. RANS simulations resulted in failures in rotor-stator fluid machinery applications, particularly those that involved strong curvature, rapid compression or expansion and a strong swirl (Argyropoulos and Markatos, 2015).…”

Section: Introductionmentioning

confidence: 99%

Application of Hybrid RANS/LES turbulence models in rotor-stator fluid machinery: a comparative study

Liu

et al. 2017

Int Jnl of Num Meth for HFF

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Purpose This paper aims to improve performance prediction and to acquire more detailed flow structures so as to analyze the turbulence in complex rotor-stator flow. Design/methodology/approach Hydraulic retarder as typical fluid machinery was numerically investigated by using hybrid Reynolds-averaged Navier–Stokes (RANS)/large eddy simulation (LES) models CIDDES Algebraic Wall-Modeled Large Eddy Simulation (LES) (WMLES) S-Ω and dynamic hybrid RANS/LES (DHRL). The prediction results were compared and analyzed with a RANS model shear stress transport (SST) k-omega which was a recommended choice in engineering. Findings The numerical results were verified by experiment and indicated that the predicted values for three hybrid turbulence models were more accurate. Then, the transient flow field was further analyzed visually in terms of turbulence statistics, Reynolds number, pressure-streamline, vortex structure and eddy viscosity ratio. The results indicated that HRL approaches could capture unsteady flow phenomena. Practical implications This study achieves both in performance prediction improvement and better flow mechanism understanding. The computational fluid dynamics (CFD) could be used instead of flow visualization to a certain extent. The improved CFD method, the fine computational grid and the reasonable simulation settings jointly enhance the application of CFD in the rotor-stator flow. Originality/value The improvement was quite encouraging compared with the reported literatures, contributing to the CFD playing a more important role in the flow machinery. DHRL provided the detailed explanation of flow transport between rotor and stator, which was not reported before. Through it, the flow mechanism can be better understood.

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“…Hydraulic retarders (HRs) are auxiliary braking devices of vehicles that can reduce vehicle speed by converting the kinetic energy of vehicle to thermal energy of working fluid. 1,2 Instead of service braking, HR can be used to regulate vehicle speed effectively under nonemergency braking conditions. Compared with other auxiliary braking devices, HR has the advantages of high braking power, durable efficiency, and zero pollution.…”

Section: Introductionmentioning

confidence: 99%

Design of a filling ratio observer for a hydraulic retarder: An analysis of vehicle thermal management and dynamic braking system

Zheng

Lei

Song

2016

Advances in Mechanical Engineering

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Hydraulic retarders are auxiliary braking devices that reduce vehicle speed by converting its kinetic energy into thermal energy of a working fluid. This study analyzes the torque-output characteristics of a new type of hydraulic retarder and optimizes its control strategy under different braking conditions. The design of an observer is based on an analysis of the vehicle dynamic system to ensure that it sets the control target of the dynamic filling ratio for hydraulic control system. With the assistance of the observer, the hydraulic retarder can produce the required braking torque as quickly and as accurately as possible. This study simulates a feedback control system of the vehicle dynamic model with the observer. The results prove that even if the vehicle is driven under complex conditions wherein the slope of the road is changed, the observer effectively sets a control target of the filling ratio for the hydraulic control system. This mechanism strengthens the adaptability and accuracy of the hydraulic retarder control strategy.

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Multiobjective Optimization Design of Double-Row Blades Hydraulic Retarder with Surrogate Model

Cited by 10 publications

References 29 publications

Comprehensive Evaluation of Hydrodynamic Retarders with Fuzzy Analytic Hierarchy Process and Improved Radar Chart

Comprehensive Evaluation of Hydrodynamic Retarders with Fuzzy Analytic Hierarchy Process and Improved Radar Chart

Application of Hybrid RANS/LES turbulence models in rotor-stator fluid machinery: a comparative study

Design of a filling ratio observer for a hydraulic retarder: An analysis of vehicle thermal management and dynamic braking system

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