Fleet deployment optimization models. Part 1

1987 ◽  
Vol 14 (2) ◽  
pp. 127-144 ◽  
Author(s):  
Anastassions N. Perakis ◽  
Nikiforos Papadakis
Keyword(s):  
Optimization Models ◽  
Deployment Optimization ◽  
Fleet Deployment

Liner shipping cycle cost modelling, fleet deployment optimization and what-if analysis

2011 ◽  
Vol 13 (3) ◽  
pp. 278-297 ◽  
Author(s):  
Panayotis G Zacharioudakis ◽  
Stylianos Iordanis ◽  
Dimitrios V Lyridis ◽  
Harilaos N Psaraftis
Keyword(s):  
Liner Shipping ◽  
Cost Modelling ◽  
Deployment Optimization ◽  
Fleet Deployment

Fleet deployment optimization models.Part 2

1987 ◽  
Vol 14 (2) ◽  
pp. 145-155 ◽  
Author(s):  
Anastassios N. Perakis ◽  
Nikiforos Papadakis
Keyword(s):  
Deployment Optimization ◽  
Fleet Deployment

scholarly journals Containerships Sailing Speed and Fleet Deployment Optimization under a Time-Based Differentiated Freight Rate Strategy

2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Hualong Yang ◽  
Yuwei Xing
Keyword(s):  
Optimization Problem ◽  
Optimal Solution ◽  
Freight Rate ◽  
Liner Shipping ◽  
Mixed Integer ◽  
Time Value ◽  
Proposed Model ◽  
Discretization Algorithm ◽  
Deployment Optimization ◽  
Fleet Deployment

This paper investigates the problem of containership sailing speed and fleet deployment optimization in an intercontinental liner shipping network. Under the consideration of the time value of container cargo, three kinds of impact of sailing speed changes on long legs of each liner route are analysed, and a time-based freight rate strategy is proposed. Then, the optimization problem is formulated as a mixed-integer nonlinear programming. Its goal is to maximize the total profits of a container liner shipping. To find the optimal solution to the model and improve the efficiency of model solution, a discretization algorithm is proposed. Numerical results verify the applicability of the proposed model and the efficiency of the algorithm. In addition, the time-based freight rate strategy is able to achieve more profit compared to a fixed freight rate strategy.

Modeling And Optimization Of The Construction Organization's Production Program

2020 ◽  
pp. 49-56
Keyword(s):  
Software Package ◽  
Target Function ◽  
Optimization Models ◽  
Labor Resource ◽  
Production Program ◽  
Construction Organizations ◽  
Source Data ◽  
Labor Resources ◽  
Construction Organization ◽  
Planning Production

In the article, the author considers the problems of complex algorithmization and systematization of approaches to optimizing the work plans of construction organizations (calendar plans) using various modern tools, including, for example, evolutionary algorithms for "conscious" enumeration of options for solving a target function from an array of possible constraints for a given nomenclature. Various typical schemes for modeling the processes of distribution of labor resources between objects of the production program are given, taking into account the array of source data. This data includes the possibility of using the material and technical supply base (delivery, storage, packaging) as a temporary container for placing the labor resource in case of released capacity, quantitative and qualification composition of the initial labor resource, the properties of the construction organization as a counterparty in the contract system with the customer of construction and installation works etc. A conceptual algorithm is formed that is the basis of the software package for operational harmonization of the production program ( work plans) in accordance with the loading of production units, the released capacities of labor resources and other conditions stipulated by the model. The application of the proposed algorithm is most convenient for a set of objects, which determines the relevance of its implementation in optimization models when planning production programs of building organizations that contain several objects distributed over a time scale.

Sign in / Sign up

Export Citation Format

Share Document