首页|内曲线液压马达定子曲线设计与动力学建模

内曲线液压马达定子曲线设计与动力学建模

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定子是内曲线液压马达关键零件之一，其曲线形状对液压马达的性能和使用寿命具有重要影响。针对等加速型内曲线液压马达在运行过程中存在冲击较大的问题，提出一种基于五次多项式运动规律的定子曲线设计方法。通过对液压马达功能模块的受力分析，建立液压马达输出扭矩与零速区段幅角的量化关系，并在此基础上对零速区幅角进行了优化，结果表明，当零速区段幅角为0。5°时，定子曲线扭矩脉动率最小;进一步建立考虑定子磨损的液压马达动力学模型，并采用数值计算方法对该模型进行仿真求解;最后，通过实验方法研究不同转速下液压马达的振动响应，验证了理论模型的正确性。
Stator Curve Design and Dynamic Modeling of Internal Curve Hydraulic Motor
The stator is one of the key parts of the internal curve hydraulic motor,and its curve shape has an important influence on the performance and service life of the hydraulic motor.A stator curve design method based on the motion law of quintic polynomial is proposed to solve the problem that the internal curve hydraulic motor with constant acceleration has great impact during operation.Firstly,the quantitative relationship between the output torque of the hydraulic motor and the amplitude angle of the zero speed zone is established through the force analysis of the functional module of the hydraulic motor,and the amplitude angle of the zero speed zone is optimized on this basis.The results show that the stator curve torque pulsation rate is minimum when the zero velocity section angle is 0.5°.Secondly,on the basis of the above research,the dynamic model of hydraulic motor considering stator wear is further established,and the numerical calculation method is used to simulate and solve the model.Finally,the vibration response of hydraulic motor under different speed is studied by experimental method,and the correctness of the theoretical model is verified.

internal curve hydraulic motorstator curvequintic polynomialdynamic modelingvibration and shock

虞威、汪涛、谢重阳

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宁波大学机械工程与力学学院,浙江宁波 315211

浙江省零件轧制成形技术研究重点实验室,浙江宁波 315211

内曲线液压马达 定子曲线 五次多项式 动力学建模 振动与冲击

浙江省自然科学基金浙江省市场监督管理局雏鹰计划培育项目浙江省教育厅一般科研项目宁波大学大学生科技创新计划

LQ22E050004CY2023328Y2022497952023SRIP1221

2024

10.11832/j.issn.1000-4858.2024.06.011

液压与气动
北京机械工业自动化研究所

液压与气动

CSTPCD北大核心
影响因子：0.453
ISSN：1000-4858
年,卷(期)：2024.48(6)
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