新型内摆线能量转换机构的动力学解析

介绍了新型内摆线能量转换机构的工作原理和结构设计，采用基于能量的欧拉-拉格朗日方法推导了系统的动力学模型。基于四阶Runge-Kutta法，运用MATLAB进行了仿真验证，结果表明，新型内摆线能量转换机构的活塞做完全简谐直线运动，运动更加平稳；活塞加速度峰值比传统曲柄滑块机构小25%；在相同的气缸平均等效压力和负载转矩下，具有较高的输出转速，提高了内燃机的输出功率。为新型内摆线能量转换机构的进一步研究奠定了理论基础。

Dynamic Analysis for A New Hypocycloid Energy Transformation Mechanism

Working principle and structural design of a new hypocycloid energy transformation mechanism was introduced. Dynamic model for a new hypocycloid energy transformation mechanism was derived from Euler-Langrange approach based on energy. Numerical simulation by Matlab for the new hypocycloid energy transformation mechanisms was done by means of the four-order Runge-kutta's method. The result shows that the simple harmonic and rectilinear motion of piston in the new mechanism make the engine working more stable. The peak acceleration is around 25% lower in the new mechanism than that in the conventional slider-crank mechanism. And the output speed is much higher at the same identical mean effective pressure and same load torque. And then the output power of the engine is improved. The result provide the theoretical rational for further study of the hypocycloid energy transformation mechanism.