scholarly journals Warehouse Relayout Design with Weighted Distance Method to Minimize Time Travel

2020 ◽  
Vol 3 (1) ◽  
pp. 1-8
Author(s):  
Adi Firmansyah ◽  
Lukmandono Lukmandono
Keyword(s):  
Mathematical Model ◽  
Travel Time ◽  
Layout Design ◽  
Global Competition ◽  
Closing Time ◽  
Distance Method ◽  
Weighted Distance ◽  
Logistics Services ◽  
Time Required ◽  
Efficient Work

Global competition between companies is becoming increasingly stringent, resulting in companies having to understand their customers better. Customers no longer only need quality products, but also need excellent and timely service. To meet the desires of these consumers, the company must create an effective and efficient work system. PT IJS is a warehouse engaged in logistics services in the Perak area of Surabaya. One of the services provided by PT IJS is bonded warehouse logistic services. A bounded warehouse owned is currently not able to provide maximum service because there are still many late deliveries that do not send goods to the port, and there is a closing time that is detrimental to the customer. The length of the delivery process is due to several factors, one of which is a less effective warehouse layout. Travel time is the time required for a vehicle to carry out activities loading goods PT. IJS from arrival to exit the warehouse. The method weighted distance is a mathematical model used to evaluate the layout based on proximity factors. The design of the layout design by using the technique weighted distance produces an alternative layout that shows calculation travel time a shorter

scholarly journals DESIGN RELAYOUT COMPANY WITH WEIGHTED DISTANCE METHOD FOR MINIMIZE OF TRAVEL TIME

Tibuana ◽  
2020 ◽  
Vol 3 (01) ◽  
pp. 37-46
Author(s):  
Adi Firmansyah ◽  
Lukmandono Lukmandono
Keyword(s):  
Travel Time ◽  
Closing Time ◽  
Distance Method ◽  
Weighted Distance ◽  
Time Value ◽  
Port Area ◽  
Logistics Services ◽  
Container Depots ◽  
Time Required ◽  
A Company

PT IJS is a company engaged in logistics services in the Perak area of ​​Surabaya. PT IJS was founded in 1984 when the need for container depots was urgently needed around the Tanjung Tanjung port area to unravel the shipping queues and shorten licensing. One of the services provided by PT IJS is bounded warehouse rental services. Bounded warehouse owned by PT IJS is currently not able to provide maximum service because there are still many late deliveries which do not result in the sending of goods to the port and there is a closing time that is detrimental to the customer. The length of the delivery process is due to several factors, one of which is a less effective company layout. Travel time is the time required for a vehicle to carry out goods loading activities at PT. IJS from arrival to exit company. Based on travel time calculations when using the initial layout, the travel time value of T = 2002 seconds. The weighted-distance method is a mathematical model used to evaluate the layout based on proximity factors. The design of the relayout design using the weighted-distance method produces alternative layouts that produce shorter travel time calculations, alternative layout  with T = 1849 seconds.

scholarly journals Desain Relayout Gudang dengan Metode Weighted Distance untuk Meminimasi Travel Time

2020 ◽  
Vol 22 (1) ◽  
pp. 1-14
Author(s):  
Adi Firmansyah
Keyword(s):  
Travel Time ◽  
Closing Time ◽  
Distance Method ◽  
Weighted Distance ◽  
Time Value ◽  
Port Area ◽  
Logistics Services ◽  
Container Depots ◽  
Time Required ◽  
A Company

PT IJS is a company engaged in logistics services in the Perak area of ​​Surabaya. PT IJS was founded in 1984 when the need for container depots was urgently needed around the Tanjung Tanjung port area to unravel the shipping queues and shorten licensing. One of the services provided by PT IJS is bounded warehouse rental services. Bounded warehouse owned by PT IJS is currently not able to provide maximum service because there are still many late deliveries which do not result in the sending of goods to the port and there is a closing time that is detrimental to the customer. The length of the delivery process is due to several factors, one of which is a less effective company layout. Travel time is the time required for a vehicle to carry out goods loading activities at PT. IJS from arrival to exit company. Based on travel time calculations when using the initial layout, the travel time value of T = 2002 seconds. The weighted-distance method is a mathematical model used to evaluate the layout based on proximity factors. The design of the relayout design using the weighted-distance method produces alternative layouts that produce shorter travel time calculations, alternative layout  with T = 1849 seconds

Analytical Study of Hydro-Pneumatic Processes for Gorlov's Power System

1994 ◽  
Vol 208 (1) ◽  
pp. 67-70
Author(s):  
A I Ryazanov
Keyword(s):  
Experimental Data ◽  
Mathematical Model ◽  
Power System ◽  
Analytical Study ◽  
Model Tests ◽  
Air Pressure ◽  
Pneumatic Power ◽  
Time Required ◽  
The Mathematical Model

This paper describes the aerohydrodvnamics of processes in chambers of Gorlov's hydro-pneumatic power system. The mathematical model is developed to determine the main parameters of the processes: water and air velocities, air pressure in the chamber, the periods of time required to fill and empty the chambers and the output of energy during the cycle. The results obtained are in agreement with experimental data and model tests.

Fast and Intelligent Antenna Design Optimization using Machine Learning

2021 ◽  
Vol 35 (11) ◽  
pp. 1350-1351
Author(s):  
Gopinath Gampala ◽  
C. J. Reddy
Keyword(s):  
Machine Learning ◽  
Mathematical Model ◽  
Design Optimization ◽  
Antenna Design ◽  
Convergence Criteria ◽  
Time Required

Traditional antenna optimization solves the modified version of the original antenna design for each iteration. Thus, the total time required to optimize a given antenna design is highly dependent on the convergence criteria of the selected algorithm and the time taken for each iteration. The use of machine learning enables the antenna designer to generate trained mathematical model that replicates the original antenna design and then apply optimization on the trained model. Use of trained model allows to run thousands of optimization iterations in a span of few seconds.

Network Model of Urban Taxi Services: Improved Algorithm

1998 ◽  
Vol 1623 (1) ◽  
pp. 27-30 ◽  
Author(s):  
S. C. Wong ◽  
Hai Yang
Keyword(s):  
Mathematical Model ◽  
Logit Model ◽  
Road Network ◽  
Search Time ◽  
Random Variable ◽  
Taxi Driver ◽  
Movement Model ◽  
Transportation Services ◽  
Type Distribution ◽  
Time Required

A mathematical model is proposed to describe how vacant and occupied taxis will cruise in a road network to search for customers and provide transportation services. The model assumes that a taxi driver, once having picked up a customer, will move to the customer’s destination by the shortest path; and that a taxi driver, once having dropped a customer, will try to minimize individual expected search time required to meet the next customer. The probability that a vacant taxi meets a customer in a particular zone is specified by a logit model by assuming that the expected search time in each zone is an identically distributed random variable due to variations in perceptions and the random arrival of customers. The whole movement of all empty and occupied taxis is formulated as an optimization model, from which a gravity-type distribution of empty taxis is derived. Consequently, the taxi movement model can be solved efficiently by the established iterative balancing method and can be incorporated into any standard transportation planning packages.

Determining the repair ranking of existing reinforced concrete bridges using generalized weighted distance method

2006 ◽  
Vol 29 (6) ◽  
pp. 975-988
Author(s):  
Ming‐Te Liang ◽  
Chin‐Ming Lin ◽  
Wen‐Hu Tsao ◽  
Wen‐Lung Tsao ◽  
Chi‐Jang Yeh
Keyword(s):  
Reinforced Concrete ◽  
Concrete Bridges ◽  
Distance Method ◽  
Weighted Distance ◽  
Reinforced Concrete Bridges

scholarly journals A model for determining the time of pointing a grip-cutting device of feller buncher machines on a growing tree

2021 ◽  
Author(s):  
А.В. Андронов ◽  
И.А. Зверев ◽  
О.А. Михайлов ◽  
Г.С. Тарадин
Keyword(s):  
Mathematical Model ◽  
Average Distance ◽  
Hydraulic Cylinder ◽  
Technological Equipment ◽  
Maximum Time ◽  
Cylinder Piston ◽  
Experienced Operator ◽  
Time Required ◽  
The Way

Исследование посвящено нахождению аналитической математической модели по определению времени наведения захватно-срезающего устройства на растущее дерево. В качестве известных параметров используются конструктивные размеры технологического оборудования, снятые с компоновочно-кинематических схем валочно-пакетирующих машин, требуемая высота пня и среднее расстояние между деревьями пасики. Поиск требуемой модели кратко можно разделить на несколько последовательных этапов: нахождение пути, который пройдет шток гидроцилиндра привода стрелы, и по известной формуле скорости перемещения поршня гидроцилиндра находится время на подвод стрелы к дереву; нахождение пути, который пройдет шток гидроцилиндра привода рукояти; нахождение пути, который пройдет шток гидроцилиндра привода наклона захватно-срезающего устройства; нахождение пути, который пройдет шток гидроцилиндра привода рычагов захвата в процессе раскрытия. Сумма времени на подвод каждого из элементов технологического оборудования и есть время на наведение, присущее неопытному оператору, в случае опытного оператора время на наведение захватно-срезающего устройства к дереву определяется максимальным временем одного из компонентов. The research is devoted to finding an analytical mathematical model for determining the aiming time of a feller head on a growing tree. As the known parameters are used. The design dimensions of the technological equipment, taken from layout and kinematic diagrams of feller-buncher machines, the required stump height and the average distance between the trees of the windrow. The search for the required model can be briefly divided into several successive steps: finding the path that the hydraulic cylinder rod of the boom drive will take and by the known formula of speed of movement of the hydraulic cylinder piston is time to bring the boom to the tree; finding the way which the rod of the hydraulic cylinder of the arm drive; to find the path which the hydraulic cylinder rod of the tilt of the feller head; finding the path which the hydraulic cylinder rod for the arm actuator will take during the opening. The sum of the time for supplying each of the elements of technological equipment is the time required for the orientation, which is characteristic for a nonexperienced operator. In case of an experienced operator the time for setting the feller head to the tree is determined by the maximum time of one of the components.

scholarly journals MINIMUM LAP TIME CALCULATION USING MATLAB

2021 ◽  
Vol 10 (2) ◽  
pp. 69-81
Keyword(s):  
Mathematical Model ◽  
Dynamic Simulation ◽  
Vehicle Dynamics ◽  
Simulation Methods ◽  
Know How ◽  
Time Calculation ◽  
Time Required ◽  
Matlab Programming ◽  
Limiting Velocity ◽  
Static Simulation

Formula Student car, to participate in different Formula Student events. Though the car was designed and all designed systems and components were validated using Static Simulation, but it was not known how would car perform on the actual track. By using different dynamic simulation methods and MATLAB programming, team has tried to understand the vehicle behaviour on track. One of the methods used by the team was, to calculate the limiting velocity for each curve on the track and to calculate the time required by the car to complete one Endurance lap of Formula Bharat 2020. This was achieved by making a mathematical model and using concepts of vehicle Dynamics. In the study different cases of the track are also discussed and how does the car behave at different portion of the track is clearly explained in the study. This helps the driver to handle the car properly. As with this information driver would be able to know how his car would behave at different corners of the track.

scholarly journals Mathematical Model for Manual Loading Activity in Underground mines

2014 ◽  
pp. 134-141
Author(s):  
V. Vidyasagar ◽  
Dr. P. N. Belkhode ◽  
Dr. J.P. Modak
Keyword(s):  
Mathematical Model ◽  
Present Method ◽  
Underground Mines ◽  
Environmental Aspects ◽  
Anthropometric Data ◽  
Work Station ◽  
Human Energy ◽  
Time Required ◽  
Air Circulation ◽  
The Mathematical Model

The paper details the approach to improve the productivity and conserving human energy in Manual loading activity. Manual loading is one of the primary activities and consumes a good amount of time for the mining crew in the underground mines. With formulation of the mathematical model, improvements in the present method of Manual loading which can conserve human energy besides increasing the productivity and reducing the time required. This mathematical model predicts the optimization of Manual loading activity. Some of the variables used to formulate this model are (1) Environment of working area, which include the ergonomic aspects; i.e. various postures of the worker, anthropometric data of the miners and environmental aspects such as illumination, ambient temperature, relative humidity and air circulation facility around the work station (2)Tools used by miner which include geometric dimensions of tools, (3) Loading of the Ore per unit time, human energy consumption etc., based on the data collected of these variables, mathematical model is formulated.

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