The Concept Of Transfer - 785 Words

by calculating the cost, instead, it determines the optimality using the NC [12]. The NC allows a mission planner to analyze whether a transfer is optimum or non-optimum by evaluating the primer vector pro le along the transfer trajectory and see if it satisfy the NC. Transfer trajectory refers to the trajectory of the spacecraft from orbit around the departure planet to the orbit of around the destination. In case of non-optimum trajectory, one can alter the trajectory by modifying the orbital velocity vector as such to satisfy the NC of optimality [13]. The modi cation of the velocity vector is achieved through implementation of DSM. A linear method to optimize a transfer based on the gradient of the cost functional was rst proposed by†¦show more content†¦Solving primer vector equation using state transition matrix is the most common approach in the trajectory optimization. Since this approach relies on the numerical integration of the STM and the primer vector, the computation time becomes a disadvantage. With the rapid advancement in computer technology, the issue of computation time is not as significant as in the past. However, the numerical approach using STM did not give an insight to the optimization problem. In the paper by Iorfida, it is presented how the analytical solution to the out of plane case can be explored to nd the influence of the transfer orbit parameter s to the optimality. There are numerous works which have been conducted to derive the analytical solution to the primer vector equation. Russel, in his paper, [25] presented an analytical solution to the primer vector equation for the low thrust transfer case. His method is based on the analytical derivation of the state transition matrix. Other work by Huang [26] also studied a low thrust transfer and proposed an analytical solution for circular case transfer. For an impulsive transfer case, there are several works, which focused on finding an ana-lytical solution to the primer vector equation. In 1669, Prussing published his work on the analytical solution of the out of plane component circular rendezvous problem [27]. In 1991, Carter published his studies of the xed time linearised impulsive rendezvousShow MoreRelatedThe Business Concept of Training Transfer1877 Words   |  8 Pagesworld to improve corporate performance in topics such as communication, sales, performance management, operations, and technology with much little impact (Jaidev Chirayath, 2012). The concept of transfer training used in organizations is commonly used in firms today. This paper will discuss the concept of transfer training strengths and weakness and how trainers can utilize it in the workplace in a more efficient manner. 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