循环工况下变矩器叶片角设计空间的性能优化

发布时间：2018-07-12 13:18

本文选题：循环工况 + 变矩器　；参考：《哈尔滨工程大学学报》2017年11期

【摘要】：为解决整机循环工况与液力变矩器的匹配问题,并建立变矩器设计参数与整机工况的动力学映射关系,本文提出循环工况条件下变矩器叶片角设计空间的性能优化方法。该方法在整机物理实验条件下,以其变矩器的统计循环工况加权效率为评价目标,利用变矩器一元束流理论及其流固耦合仿真结果构建变矩器性能模型,对变矩器叶片角设计变量进行优化。优化过程中以整机V型和T型典型工况及双涡轮变矩器为研究对象,在变矩器流固耦合仿真精度得到台架实验验证的前提下,证明优化后变矩器统计循环工况加权效率分别提升2.64%和2.48%。该方法简易性地建立了整机与变矩器叶片角设计参数间的一体化动力学匹配关系,对同类面向主机的配件定制化设计具有工程化指导价值。
[Abstract]:In order to solve the matching problem between the cycle conditions of the whole machine and the torque converter, and to establish the dynamic mapping relationship between the design parameters of the torque converter and the working conditions of the whole machine, this paper presents a performance optimization method for the design space of the blade angle of the torque converter under the cyclic condition. Under the condition of the whole machine physical experiment, the performance model of the converter is constructed by using the monolithic beam theory of the converter and the simulation results of fluid-structure coupling, taking the weighted efficiency of its torque converter under the statistical cycle condition as the evaluation objective. The design variables of blade angle of torque converter are optimized. In the optimization process, the V and T typical conditions of the whole machine and the double turbine torque converter are taken as the research objects, and the simulation accuracy of fluid-solid coupling of the torque converter is verified by the bench experiment. It is proved that the weighting efficiency of the torque converter after optimization is increased by 2.64% and 2.48% respectively. The integrated dynamic matching relationship between the design parameters of the blade angle of the whole machine and the torque converter is established simply, which has engineering guiding value for the custom-made design of the same kind of mainframe parts.
【作者单位】：同济大学机械与能源工程学院;山推工程机械股份有限公司;
【基金】：2012年重大科技成果转化项目([2012]258号)
【分类号】：TH137.332

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