| 引用本文: | 邹腾安,潘存云,徐小军,等.双转子活塞发动机差速驱动组件的动态静力学建模与分析*.[J].国防科技大学学报,2014,36(5):.[点击复制] |
| ,et al.Kineto-static analysis on the Differential Velocity Drive Mechanism of the Dual-rotor Piston Engine[J].Journal of National University of Defense Technology,2014,36(5):[点击复制] |
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| 双转子活塞发动机差速驱动组件的动态静力学建模与分析* |
| 邹腾安1, 潘存云1, 徐小军1, 陈虎1 |
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(国防科技大学 机电工程与自动化学院)
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| 摘要: |
| 双转子活塞发动机(Dual-rotor Piston Engine,简称DRPE)是一种新型的差速式转子发动机,与传统发动机相比较具有很多优点,例如不需要复杂的阀门装置,结构更紧凑而且功率密度更高等。本文针对DRPE的工作特点,分析了其差速驱动组件(Differential Velocity Drive Mechanism,简称DVDM)的机构特性,定义了动力学参数,进而采用矢量力学方法对DVDM的动态静力学进行数学建模。运用Matlab对所建理论模型进行数值计算,得出了主要部件的受力特征。为了验证所建数学模型的合理性,基于多体动力学仿真理论,在RecurDyn环境下建立了DRPE的虚拟样机模型,仿真结果与理论计算结果相比较,相应的约束反力的数值变化规律基本一致,都呈现四个周期的变化过程,冲击位置也基本相同,表明建立的动力学理论模型基本符合实际情况,是可信的,可以用作DRPE改进设计的理论基础。 |
| 关键词: 双转子 活塞 力学分析 动力学 模型 |
| DOI： |
| 投稿日期：2014-04-11 修订日期：2014-09-05 |
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| Kineto-static analysis on the Differential Velocity Drive Mechanism of the Dual-rotor Piston Engine |
| Abstract: |
| Dual-rotor Piston Engine (DRPE) is a new type of differential rotary engine. Compared with traditional engines, DRPE has many advantages. The complex valve systems can be omitted. Its structure is more compact. Its power density is higher, and so forth. In the paper, we analyze the working characteristics of DRPE, and figure out the mechanical structure characteristics of the Differential Velocity Drive Mechanism (DVDM) of the DRPE. Define its kinetic parameters. Then establish the mathematical models for the kineto-static analysis of the DVDM by using vector mechanics methods. The mathematical models were calculated by Matlab. The mechanical characteristics of DRPE’s main components were obtained. In order to verify the rationality of the established mathematical models, multi-body dynamics simulations were done. The virtual prototype model of the DRPE-350 was established in the RecurDyn. The simulation results compared with the calculation results, the value changing rules are almost the same. The changing processes are all four cycles. Impact positions are basically the same. It shows that the established dynamic theory model conforms to the actual situation. It is reasonable and can be trusted. It can be used as the theoretical foundation for the follow-up improvements of the DRPE. |
| Keywords: Dual-rotor piston mechanical analysis dynamics models |
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