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滚装重荷载应急卸载过程的浮基多体系统动力学分析 被引量:2
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作者 沈庆 李跃 吴广怀 《解放军理工大学学报(自然科学版)》 EI 2003年第1期43-47,共5页
在救灾和战争等非常情况下 ,利用中小型近海滚装渡轮或改装后的渔轮渡海输送重荷载 ,具有可征用船只的数量多和装卸载不依赖吊装设备等优点。在缺乏港口屏蔽的海浪环境中 ,重荷载进行滚动卸载 ,必须考虑波浪对船的作用和重荷载与船的相... 在救灾和战争等非常情况下 ,利用中小型近海滚装渡轮或改装后的渔轮渡海输送重荷载 ,具有可征用船只的数量多和装卸载不依赖吊装设备等优点。在缺乏港口屏蔽的海浪环境中 ,重荷载进行滚动卸载 ,必须考虑波浪对船的作用和重荷载与船的相互作用。通过对船在波浪中所受表观重力和表观浮力的分析 ,导出波浪作用力矩的计算公式。运用浮基多体系统动力学方法 ,建立波浪—浮基—重荷载系统的动力学方程。使用标准的龙格 -库塔四阶方法进行数值积分求解。考虑海况、船型和重荷载在船上运动参数等因素 ,计算了各工况下的横摇运动响应。 展开更多
关键词 重荷载 应急卸载过程 滚装卸载 浮基 多体系统 动力学 表观浮力 龙格-库塔四阶方法 滚装码头
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A study of nonlinear biochemical reaction model 被引量:1
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作者 Muhammad Asad Iqbal Syed Tauseef Mohyud-Din Bandar Bin-Mohsin 《International Journal of Biomathematics》 2016年第5期121-129,共9页
The present study deals with the introduction of an alteration in Legendre wavelets method by availing of the Picard iteration method for system of differential equations and named it Legendre wavelet-Picard method (... The present study deals with the introduction of an alteration in Legendre wavelets method by availing of the Picard iteration method for system of differential equations and named it Legendre wavelet-Picard method (LWPM). Convergence of the proposed method is also discussed. In order to check the competence of the proposed method, basic enzyme kinetics is considered. Systems of nonlinear ordinary differential equations are formed from the considered enzyme-substrate reaction. The results obtained by the proposed LWPM are compared with the numerical results obtained from Runge-Kutta method of order four (RK-4). Numerical results and those obtained by LWPM are in excellent conformance, which would be explained by the help of table and figures. The proposed method is easy and simple to implement as compared to the other existing analytical methods used for solving systems of differential equations arising in biology, physics and engineering. 展开更多
关键词 Legendre wavelets method Picard iteration method nonlinear biochemical reaction model Runge- Kutta method of order four.
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