基于相位调谐的旋转摆盘发动机驱动机构运动与受力分析

doi:10.3901/JME.2024.03.109

机械工程学报 ›› 2024, Vol. 60 ›› Issue (3): 109-119.doi: 10.3901/JME.2024.03.109

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基于相位调谐的旋转摆盘发动机驱动机构运动与受力分析

魏振航¹, 王世宇^1,2,3, 夏春花¹

1. 天津大学机械工程学院天津 300350;
2. 天津大学机构理论与装备设计教育部重点实验室天津 300350;
3. 天津市非线性动力学与控制重点实验室天津 300350

收稿日期:2023-02-26 修回日期:2023-08-05 出版日期:2024-02-05 发布日期:2024-04-28
通讯作者: 王世宇,男,1974年出生,博士,教授,博士研究生导师。主要研究方向为旋转机械动力学、齿轮动力学等。E-mail:wangshiyu@tju.edu.cn
作者简介:魏振航,男, 2000 年出生,博士研究生。主要研究方向为机械系统动力学。E-mail:wzh201057@tju.edu.cn;夏春花,女, 1995 年出生,博士研究生。主要研究方向为机械系统动力学。E-mail:xiachunhua057@tju.edu.cn
基金资助:
国家自然科学基金资助项目(52175109)。

Motion and Forces Analysis of the Drive Mechanism of Rotary Wobble-plate Engine Based on Phase Tuning

WEI Zhenhang¹, WANG Shiyu^1,2,3, XIA Chunhua¹

1. School of Mechanical Engineering, Tianjin University, Tianjin 300350;
2. Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, Tianjin University, Tianjin 300350;
3. Tianjin Key Laboratory of Nonlinear Dynamics and Control, Tianjin 300350

Received:2023-02-26 Revised:2023-08-05 Online:2024-02-05 Published:2024-04-28

摘要/Abstract

摘要： 旋转摆盘发动机具有结构紧凑和比功率大等优点,广泛应用于潜航器和鱼雷等军事装备中。利用坐标变换矩阵求得了摆盘轨迹、活塞位移和连杆摆角的解析表达式,揭示了斜轴夹角和摆盘半径等结构参数对摆盘运动和连杆摆角的影响规律。考虑活塞分布的空间对称性以及燃气压力变化的时间对称性,利用相位调谐原理分析了摆盘的受力特征,揭示了燃气压力谐波阶次和活塞个数对摆盘受力的影响规律。研究结果表明,摆盘边缘的运动轨迹呈球面“8”字形;由于连杆的空间摆动,活塞位移并非连杆大头位移沿活塞轴向的分量;通过调整活塞个数与燃气压力谐波阶次之间的组合关系,可平衡摆盘上的力或力矩。

关键词: 摆盘发动机, 驱动机构, 运动规律, 受力分析, 相位调谐

Abstract: Rotary wobble-plate engines are widely used in the military field including underwater vehicles and torpedoes due to their advantages of compact structure and high specific power. The closed-form expressions of wobble-plate trajectory, piston displacement, and connecting rod swing angle are derived using the coordinate transformation matrix, which reveals the influence of engine structure parameters, including inclined axis angle and radius of wobble-plate, on the wobble-plate's motion and rod swing angle. Considering the spatial symmetry of the piston's configuration and the time symmetry of the changes in burning gas pressure, the force characteristics of the wobble-plate are analyzed using the phase tuning principle. The influence laws of harmonic orders of the burning gas pressure and the number of pistons on the force on the wobble-plate are revealed. The results show that the motion trajectory of the edge of the wobble-plate is an 8-shaped path on a sphere. The displacement of piston is different from the piston axial component of the connecting rod big end displacement due to the spatial swing of the connecting rod. The forces or moments on the wobble-plate can be balanced by adjusting the combination of piston count and the harmonic order of burning gas pressure.

Key words: wobble-plate engine, drive mechanism, motion law, force analysis, phase tuning

中图分类号:

TJ63

魏振航, 王世宇, 夏春花. 基于相位调谐的旋转摆盘发动机驱动机构运动与受力分析[J]. 机械工程学报, 2024, 60(3): 109-119.

WEI Zhenhang, WANG Shiyu, XIA Chunhua. Motion and Forces Analysis of the Drive Mechanism of Rotary Wobble-plate Engine Based on Phase Tuning[J]. Journal of Mechanical Engineering, 2024, 60(3): 109-119.

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基于相位调谐的旋转摆盘发动机驱动机构运动与受力分析

Motion and Forces Analysis of the Drive Mechanism of Rotary Wobble-plate Engine Based on Phase Tuning

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