浅析我国现行的人民币汇率形成机制

从新中国建立至今,我国的汇率制度经过不断的探索与调整,形成了现在的以市场供求为基础、“参考一篮子货币”进行调节的、有管理的浮动汇率制度。汇率制度的选择受购买力平价、通货膨胀率、国际收支以及国际间利率差别等多种因素影响,且必须与经济发展状况相适应。我国现行的汇率制度基本符合我国的国情,但也存在一些需要改进的地方。本文在分析人民币汇率现状特点及其影响因素的基础上,提出了未来人民币汇率制度改革的相关政策建议。     

Research on low-frequency mechanical characteristics of the MR dampers in ship isolators

A new isolator composed of a steel rope spring and a magneto-rheological （MR） damper was designed and a study on low-frequency mechanical characteristics of MR dampers in isolators was carried out. It used the characteristics of the MR damper, such as fast response, controllable damping, small energy consumption, wide dynamic scope, and great adaptation. The relationships between MR damping forces and influencing factors were analyzed based on experimental data. The results show that damping force is not only related to structural dimensions, but also closely related to controllable current and vibration frequency. Finally, the empirical formula for damping forces was corrected, and the relationship between correction coefficients and factors analyzed.