The dynamics of fully nonlinear structure of six-component dusty cometary plasma system with the help of Sagdeev pseudo-potential techniques have been investigated. This plasma system is made up of Oxygen (positively and negatively charged) ion pair, negatively charged dust particles, and kappa distributed ions of Hydrogen, hot solar electrons and slightly colder cometary electrons. The linear analysis is carried out and the linear dispersion relation is obtained and investigated with some relevant plasma parameters. As a result, the velocities in the fluid equations are normalized to a general acoustic speed instead of the particular form of acoustic speed. Employing pseudo-potential approach, the basic equations of plasma system were reduced to a single nonlinear ordinary differential equation (energy-balance). By means of Sagdeev potential curves and bifurcation analysis of phase-portrait, the existence and propagation of nonlinear waves are examined. In addition to the periodic solution, it is shown that the localized negative and positive amplitude electrostatic pulses may (co-) exist and propagate in plasma system depending on the Mach number intervals. The impact of some intrinsic plasma parameters on the main features of the solitary wave electrostatic potential profile and the associated electrostatic field are extensively investigated. The results of this research are relevant to plasmas in both laboratory plasmas and exclusively in space plasmas as, comet tails, rings of giant planets, solar wind, interstellar clouds, etc.

借助Sagdeev赝势技术研究了六分量尘埃彗星等离子体系统的全非线性结构动力学。该等离子系统由氧（带正电和带负电）离子对、带负电的尘埃粒子和 kappa 分布的氢离子、热太阳电子和稍冷的彗星电子组成。进行线性分析并获得线性色散关系，并使用一些相关的等离子体参数进行研究。结果，流体方程中的速度被归一化为一般声速，而不是声速的特定形式。采用赝势方法，将等离子体系统的基本方程简化为一个非线性常微分方程（能量平衡）。通过Sagdeev势曲线和相像的分岔分析，检验了非线性波的存在和传播。除了周期解之外，还表明局部负幅和正幅静电脉冲可能（共）存在并在等离子体系统中传播，这取决于马赫数间隔。广泛研究了一些固有等离子体参数对孤立波静电势分布和相关静电场的主要特征的影响。这项研究的结果与实验室等离子体和空间等离子体中的等离子体有关，如彗尾、巨行星环、太阳风、星际云等。除了周期解之外，还表明局部负幅和正幅静电脉冲可能（共）存在并在等离子体系统中传播，这取决于马赫数间隔。广泛研究了一些固有等离子体参数对孤立波静电势分布和相关静电场的主要特征的影响。这项研究的结果与实验室等离子体和空间等离子体中的等离子体有关，如彗尾、巨行星环、太阳风、星际云等。除了周期解之外，还表明局部负幅和正幅静电脉冲可能（共）存在并在等离子体系统中传播，这取决于马赫数间隔。广泛研究了一些固有等离子体参数对孤立波静电势分布和相关静电场的主要特征的影响。这项研究的结果与实验室等离子体和空间等离子体中的等离子体有关，如彗尾、巨行星环、太阳风、星际云等。广泛研究了一些固有等离子体参数对孤立波静电势分布和相关静电场的主要特征的影响。这项研究的结果与实验室等离子体和空间等离子体中的等离子体有关，如彗尾、巨行星环、太阳风、星际云等。广泛研究了一些固有等离子体参数对孤立波静电势分布和相关静电场的主要特征的影响。这项研究的结果与实验室等离子体和空间等离子体中的等离子体有关，如彗尾、巨行星环、太阳风、星际云等。