| 摘要:基于高次方多项式凸轮型线设计原理及方法，采用VT-design模块对0483天然气发动机凸轮型线进行全新设计。在此凸轮型线的基础上，对整个配气机构运动学、动力学进行模拟；采用GT-power模块对整机性能进行一维模拟，得出缸压及充气效率等参数。试验验证表明:模拟结果和试验结果偏差较小；模拟的可靠度较高，且具有成本低、开发周期短、效果好等特点。 |
| 关键词: 天然气发动机 凸轮型线 配气机构 GT-suite 模拟 |
|
| The Design of Cam Profiles and Simulation Development of Valve Mechanism＇sPerformance of 0483 Natural Gas Engine Based on GT-suite |
| Qian zhonghua,Tang zhong |
| Chongqing PUSH Mechanism Co., Ltd.,chongqing 400050 |
| Abstract:On the basis of design principle and theory of higher-order polynomial cam profiles，the cam profiles of 0483 natural gas engine were newly designed with the VT-design module. The simulation of kinematics and dynamics of valve mechanism were based on the new design. The cylinder pressure and volumetric efficiency were figured out by the unidimensional simulation of the overall performance based on the GT-power module. It shows that there is little difference between the simulation results and the test results, and the simulation boasts relatively high reliability, low cost, short development period, and good effect. |
| Key words: natural gas engine cam profiles valve mechanism GT-suite simulation |
