协同轴摆盘发动机运动学与动力学仿真分析

张晨; 邓涛; 柳平

doi:10.13224/j.cnki.jasp.20230537

协同轴摆盘发动机运动学与动力学仿真分析

doi: 10.13224/j.cnki.jasp.20230537

张晨^1,,
邓涛^{1, 2, 3,*, ,},
柳平^{1, 2, 3}

1.
重庆交通大学航空学院，重庆 400074
2.
重庆交通大学绿色航空能源动力重庆市重点实验室，重庆 400074
3.
重庆交通大学绿色航空技术研究院，重庆 400074

基金项目: 国家自然科学基金（52275051）；重庆市技术创新与应用发展专项重点项目（cstc2019jscx-fxydX0028）

详细信息

作者简介:
张晨（1998-），男，硕士生，主要从事转子发动机研究。E-mail：zc009@mails.cqjtu.edu.cn

通讯作者:
邓涛（1982-），男，教授、博士生导师，博士，主要从事航空发动机研究。E-mail：d82t722@cqjtu.edu.cn

中图分类号: V234⁺.2
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- 被引次数: 0
出版历程
- 收稿日期: 2023-08-27
- 网络出版日期: 2025-06-15

Kinematics and dynamics simulation analysis of collaborative shaft swashplate engine

ZHANG Chen^1
,,
DENG Tao^{1, 2, 3,*
, ,},
LIU Ping^{1, 2, 3}

1.
School of Aeronautics，Chongqing Jiaotong University，Chongqing 400074，China
2.
Chongqing Key Laboratory of Green Aviation Energy and Power，Chongqing Jiaotong University，Chongqing 400074，China
3.
The Green Aerotechnics Research Institute，Chongqing Jiaotong University，Chongqing 400074，China

摘要

摘要:
针对传统摆盘发动机约束结构存在振动和噪声问题，提出一种协同轴约束结构设计方案。通过活塞行程方程确定摆盘发动机主要参数，在SolidWorks软件中建立协同轴摆盘发动机的三维模型。为了对比直导槽约束结构在输出端动力学特性，在Adams软件中进行刚体仿真。为了研究协同轴真实约束情况，进行Ansys-Adams联合的刚柔耦合仿真。结果表明：在转速为1200 r/min的额定工况条件下，协同轴摆盘发动机相较于直导槽摆盘发动机，其输出端的转速偏离峰值降低4.16 r/min，正向和负向角加速度峰值分别减少4375.11 rad/s²和3032.46 rad/s²，前者可作为后者的替代方案；将协同轴柔性化后，虽然协同轴的弹性形变会在仿真开始的0～0.0354 s内造成振动等不利因素，但协同轴依旧起到了约束良好的效果。
- 摆盘发动机 /
- 协同轴 /
- 运动学 /
- 多体动力学 /
- 刚柔耦合
Abstract:
To address the vibration and noise issues in traditional swashplate engines, a collaborative shaft constraint drive structure design scheme was proposed. The major parameters of the swashplate engine were determined through the piston stroke equation, and a 3D model of the collaborative shaft swashplate engine was built in SolidWorks software. To compare the dynamic characteristics at the output end with the straight guide groove structure, rigid body simulation was conducted by Adams software. To investigate the real constraint situation of the collaborative shaft, a combined rigid-flexible coupling simulation was performed using Ansys-Adams. The results indicated that under the rated operating conditions with a speed of 1 200 r/min, the collaborative shaft swashplate engine exhibited a decrease by 4.16 r/min in the deviation of the output speed from the peak compared with the direct groove swinging plate engine. The peak values of positive and negative angular accelerations were also reduced by 4 375.11 rad/s² and 3 032.46 rad/s², respectively. The former can be considered as a substitute for the latter. After flexible modification of the coupling shaft, although the flexible deformation of the collaborative shaft caused vibrations and other unfavorable factors within the first 0 s to 0.035 4 s of the simulation, the collaborative shaft still effectively constrained the system.
- swashplate engine /
- coaxial axes /
- kinematics /
- multibody dynamics /
- rigid-flexible coupling

HTML

图 1 摆盘机构三维模型

Figure 1. 3D model of swashplate mechanism

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图 2 协同轴约束机构简图

Figure 2. Schematic diagram of the coaxial axes constraint mechanism

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图 3 摆盘机构运动简图

Figure 3. Motion diagram of swashplate mechanism

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图 4 摆盘发动机三维模型

Figure 4. 3D models of swashplate engines

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图 5 摆盘质心X方向位移

Figure 5. X-direction displacement of swashplate center of mass

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图 6 活塞Y方向位移

Figure 6. Displacement of piston in Y direction

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图 7 刚体仿真角速度结果

Figure 7. Angular velocity results from rigid body simulations

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图 8 活塞质心Y方向加速度

Figure 8. Acceleration in Y direction of piston centroid

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图 9 连杆、活塞失效后仿真角速度

Figure 9. Simulated angular velocity after failure of connecting rod and piston

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图 10 刚体仿真角加速度结果

Figure 10. Angular acceleration results from rigid body simulations

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图 11 连杆、活塞失效后仿真角加速度

Figure 11. Simulated angular acceleration after failure of connecting rod and piston

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图 12 协同轴刚性区域

Figure 12. Rigid region of coaxial axes

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图 13 刚柔耦合仿真角速度结果

Figure 13. Angular velocity results from rigid-flexible coupling simulations

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图 14 刚柔耦合仿真角加速度结果

Figure 14. Angular acceleration results from rigid-flexible coupling simulations

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图 15 等效应力与等效应变云图

Figure 15. Contour plots of equivalent stress and equivalent strain

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表 1 摆盘发动机主要设计参数

Table 1. Main design parameters of swashplate engine

主要参数	设计值
设计倾斜角α/（°）	17
摆盘作用半径r/mm	110
活塞直径d/mm	74.5
活塞行程h/mm	64.2
连杆有效长度l/mm	180
压缩比	10

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表 2 结构Ⅰ各个部件约束关系

Table 2. Constraints of various components of Structure Ⅰ

零件1	零件2	约束
上轴承	大地	固定
输出轴	上轴承	平面副/圆柱副
摆盘	输出轴	平面副
摆盘	中心轴	平面副/圆柱副
中心轴	缸体	平面副/圆柱副
连杆	摆盘（活塞）	球副
活塞	缸体	圆柱副
协同轴	摆盘（下支座）	圆柱副
底座	大地	固定
中心轴	大地	圆柱副

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表 3 刚体仿真角速度结果对比

Table 3. Comparison of angular velocity results from rigid body simulations

结果/（r/min）	模型
结果/（r/min）	结构Ⅰ	结构Ⅱ
平均角速度	1199.98	1199.98
转速偏差	0.02	0.02
转速峰值	1197.99	1193.84
偏离峰值	2.01	6.17
偏离平均值	1.24	1.30

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表 4 刚体仿真角加速度结果对比

Table 4. Comparison of angular acceleration results from rigid body simulations

结果/（rad/s²）	模型
结果/（rad/s²）	结构Ⅰ	结构Ⅱ
正向最大值	596.42	4971.53
负向最大值	−657.34	−3689.80
最大正负差值	1253.76	8661.33
绝对值平均值	70.90	127.03

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