A Method of Simulation Predicting the Performance of Torque Converter

Abstract

The invention discloses a method for predicting the performance of a hydraulic torque converter through simulation and aims to solve the problems of low accuracy, numerous grids and large calculated amount for predicating the performance of the hydraulic torque converter. The method for predicting the performance of the hydraulic torque converter through simulation comprises the following steps: 1, extracting calculation models, namely extracting a circulating circle of the hydraulic torque converter, extracting a full passage model of thehydraulic torque converter and extracting a single passage model of the hydraulic torque converter; 2, generating full passage hexahedral mesh models of the hydraulic torque converter, namely generating a guide wheel full passage hexahedral mesh model and a pump wheel and turbine full passage hexahedral mesh model, assembling a mesh, namely sequentially importing the generated pump wheel and turbine full passage hexahedral mesh model and guide wheel full passage hexahedral mesh model into a computational fluid dynamics pre-processing software for assembly, and setting boundary conditions; 3, performing numerical calculation by using Fluent, namely performing numerical solution by importing the assembled hydraulic torque converter full passage mesh file into commercialcomputational fluid dynamics software Fluent; and 4, comparing the simulation with experimental data.

Description

technical field [0001] The invention relates to a prediction method based on computational fluid dynamics (CFD) technology, more precisely, the invention relates to a method for simulating and predicting the performance of a hydraulic torque converter by using commercial software ANASYSICEMCFD. Background technique [0002] Hydraulic torque converter (HydraulicTorqueConverter) is also known as hydraulic torque converter, torque converter, liquid clutch, etc. It is the core component of a hydromechanical automatic transmission (AT). It is composed of a pump wheel, a turbine, and a guide wheel. The hydraulic torque converter is installed between the engine and the gearbox and is a part of the gearbox system. Plate clutch is the key component to realize automatic transmission. [0003] The traditional torque converter design is generally based on the one-dimensional beam theory to calculate the impeller parameters of the torque converter, and then calculate the original charac...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problems of low precision, large number of grids, and large calculation amount in the current method for predicting torque converter performance, and provide a method for accurately simulating the torque converter through numerical calculation of the hexahedral grid full-flow channel model. Internal flow field distribution, simulation method for predicting torque converter performance

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