This paper describes analytical and numerical methods to analyze the steady state periodic response of an oscillator with symmetric elastic and inertia nonlinearity. A new implementation of the homotopy perturbation m...This paper describes analytical and numerical methods to analyze the steady state periodic response of an oscillator with symmetric elastic and inertia nonlinearity. A new implementation of the homotopy perturbation method （HPM） and an ancient Chinese method called the max-rain approach are presented to obtain an approximate solution. The major concern is to assess the accuracy of these approximate methods in predicting the system response within a certain range of system parameters by examining their ability to establish an actual （numerical） solution. Therefore, the analytical results are compared with the numerical results to illustrate the effectiveness and convenience of the proposed methods.展开更多
由威龙易名为雷诺的法国名车Renault,94年间重新进入市场,引起各界轰动。 Renault Espace属5门7座位的MPV型号,可谓同级车中取价最高的珍品。Espace REX V6采用一台2849ml V6发动机,在5400r/min可以发出最高110kW;Laguna属5门阶背式车款...由威龙易名为雷诺的法国名车Renault,94年间重新进入市场,引起各界轰动。 Renault Espace属5门7座位的MPV型号,可谓同级车中取价最高的珍品。Espace REX V6采用一台2849ml V6发动机,在5400r/min可以发出最高110kW;Laguna属5门阶背式车款,走的是家庭路线,代理商引入的Laguna共有两种发动机型号,分别为2.0L及3.0L V6型。展开更多
根据我国风荷载规范并利用虚拟激励法和振型降阶法 ,建立了设置多点细节质量阻尼器MTMD时高层建筑钢结构的动力放大系数R表达式 于是MTMD的优化目标为Min Min Max R 通过最优搜寻可得到MTMD的最优参数及有效性指标 考虑结构基本周期...根据我国风荷载规范并利用虚拟激励法和振型降阶法 ,建立了设置多点细节质量阻尼器MTMD时高层建筑钢结构的动力放大系数R表达式 于是MTMD的优化目标为Min Min Max R 通过最优搜寻可得到MTMD的最优参数及有效性指标 考虑结构基本周期和离地 10m高的平均风速的不同取值 。展开更多
文摘This paper describes analytical and numerical methods to analyze the steady state periodic response of an oscillator with symmetric elastic and inertia nonlinearity. A new implementation of the homotopy perturbation method （HPM） and an ancient Chinese method called the max-rain approach are presented to obtain an approximate solution. The major concern is to assess the accuracy of these approximate methods in predicting the system response within a certain range of system parameters by examining their ability to establish an actual （numerical） solution. Therefore, the analytical results are compared with the numerical results to illustrate the effectiveness and convenience of the proposed methods.
文摘由威龙易名为雷诺的法国名车Renault,94年间重新进入市场,引起各界轰动。 Renault Espace属5门7座位的MPV型号,可谓同级车中取价最高的珍品。Espace REX V6采用一台2849ml V6发动机,在5400r/min可以发出最高110kW;Laguna属5门阶背式车款,走的是家庭路线,代理商引入的Laguna共有两种发动机型号,分别为2.0L及3.0L V6型。
