CAJ | 학술논문

为减少井下胶轮车发动机带来的振动与噪声，以发动机悬置系统为研究对象，在掌握发动机振动特性的基础上，设计了以筒状橡胶减振器为减振元件的减振装置，并根据动力学理论及橡胶理论，建立了该减振装置的阻尼减振力学模型与有限元模型。利用有限元方法对模型进行静态特性分析，得到的静态刚度与实验结果基本吻合，说明了阻尼减振模型的正确性，为进一步进行动态特性分析奠定了基础。通过动态特性分析，得知减振装置的动刚度和阻尼损耗因子均位于合理范围内。为非公路用重型车辆发动机的减振研究提供参考。
위감소정하효륜차발동궤대래적진동여조성，이발동궤현치계통위연구대상，재장악발동궤진동특성적기출상，설계료이통상상효감진기위감진원건적감진장치，병근거동역학이론급상효이론，건립료해감진장치적조니감진역학모형여유한원모형。이용유한원방법대모형진행정태특성분석，득도적정태강도여실험결과기본문합，설명료조니감진모형적정학성，위진일보진행동태특성분석전정료기출。통과동태특성분석，득지감진장치적동강도화조니손모인자균위우합리범위내。위비공로용중형차량발동궤적감진연구제공삼고。
In order to reduce vibration and noise caused by underground rubber wheel-type vehicle engine,making engine suspension system as research object,the vibration buffer device was designed based on the engine vibration characteristics. The key component of the device is the tubular rubber shock absorber. And the mechanical model and the finite element model of vibration buffer device were established based on the theory of dynamics and rubber theory . The static characteristics analysis of model by using finite element method and the static stiffness are in well agreement with experimental results,which proved the correctness of this damping model and lays the foundation for further analysis of dynamic characteristics. Through the dynamic characteristic analysis of vibration buffer device, we know that the dynamic stiffness and damping loss factor were located within the reasonable range. This paper provides a powerful reference for the study on vibration of off-road heavy-duty vehicle engine.