نتایج جستجو برای: optimal trajectory

تعداد نتایج: 408525  

Journal: :The International Journal of Robotics Research 2021

This article develops a methodology that enables learning an objective function of optimal control system from incomplete trajectory observations. The is assumed to be weighted sum features (or basis functions) with unknown weights, and the observed data segment states inputs. proposed technique introduces concept recovery matrix establish relationship between any available weights given candid...

Journal: :international journal of advanced design and manufacturing technology 0
sedigheh shahmirzaee jeshvaghany department of mechanical and aerospace engineering, science and research branch, islamic azad university, tehran, iran farshad pazooki department of mechanical and aerospace engineering, science and research branch, islamic azad university, tehran, iran. alireza basohbat novinzaddeh department of aerospace engineering, k.n.toosi university of technology, tehran, iran

in this study, the problem of determining an optimal trajectory of a nonlinear injection into orbit problem with minimum time was investigated. the method was based on orthogonal polynomial approximation. this method consists of reducing the optimal control problem to a system of algebraic equations by expanding the state and control vector as chebyshev or legendre polynomials with undetermined...

2012
Eric M. Wolff Ufuk Topcu Richard M. Murray

We consider optimal control for a system subject to temporal logic constraints. We minimize a weighted average cost function that generalizes the commonly used average cost function from discrete-time optimal control. Dynamic programming algorithms are used to construct an optimal trajectory for the system that minimizes the cost function while satisfying a temporal logic specification. Constru...

2017

An optimal explicit guidance law that maximizes terminal velocity is developed for a reentry vehicle to a fixed target. The equations of motion are reduced with differential flatness approach and acceleration commands are related to trajectory's parameters. An optimal trajectory is determined by solving a real-coded genetic algorithm. For online trajectory generation, optimal trajectory is...

2016

An optimal explicit guidance law that maximizes terminal velocity is developed for a reentry vehicle to a fixed target. The equations of motion are reduced with differential flatness approach and acceleration commands are related to trajectory's parameters. An optimal trajectory is determined by solving a real-coded genetic algorithm. For online trajectory generation, optimal trajectory is...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2013
padideh ghafoor mohseni mohammad shahrokhi hossein abedini

in this paper, optimization and control of a tubular reactor for thermal bulk post-polymerization of styrene have been investigated. by using the reactor mathematical model, static and dynamic simulations are carried out. based on an objective function including polymer conversion and polydispersity, reactor optimal temperature profile has been obtained. in the absence of model mismatch, desire...

In this paper, the particular solution technique for inverse simulation applied to the quadrotor maneuvering flight is investigated. The ‎trust-region dogleg (DL) technique which is proposed alleviates the weakness of Newton’s method used for numerical differentiation of system states in the solution process. The proposed technique emphasizes global convergence solution to the inverse simulatio...

Journal: :iranian journal of management studies 2011
ali jazayeri narjes jazayeri

this paper studies the dynamic behavior of price elasticity and its effects on the overall profit. although price elasticity has a significant effect on sales, its dynamics have not been examined so far in pricing models. in this paper, a simple pricing model is suggested in which, price elasticity is considered dynamic. the suggested pricing model is concerned with a monopolist that its object...

2012
Soonkyum Kim Koushil Sreenath Subhrajit Bhattacharya Vijay Kumar

There are various applications where homotopy constraints are useful in trajectory generation for mobile robots. In this paper, we present a method to generate an optimal trajectory restricted to a particular homotopy class, which is specified by a given representative trajectory. The optimality is achieved by formulating the trajectory generation problem as a Mixed-Integer Quadratic Program (M...

In this paper, we present a capable algorithm for solving a class of nonlinear optimal control problems (OCP's). The approach rest mainly on the differential transform method (DTM) which is one of the approximate methods. The DTM is a powerful and efficient technique for finding solutions of nonlinear equations without the need of a linearization process. Utilizing this approach, the optimal co...

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