Sensitivity Analysis of Selected Parameters in the Order Picking Process Simulation Model, with Randomly Generated Orders

Kostrzewski, Mariusz

doi:10.3390/e22040423

Cited by 21 publications

(17 citation statements)

References 86 publications

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“…The user can observe a three-dimensional model of the mechanical system created. The visualisation of the motion, acting forces as well as other followed parameters is possible [35][36][37].…”

Section: Dynamic Analysis Of the Vehicle In The Programme Simpackmentioning

confidence: 99%

Development of a New System for Attaching the Wheels of the Front Axle in the Cross-Country Vehicle

et al. 2020

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In the introduction of this article the authors deal with a general overview in the area of suspending the wheels of the road vehicles. It is important for creating an original design and this is the core of the operation. The implementation of the design to a real vehicle created a space for modifying this design. The necessity of a modification shows important especially after the MKP analysis of the original design. Currently the Industrial Property Office of the Slovak Republic grants the presented design solution the rights for protection as a utility model. For granting the protection it was not necessary to prove the safety parameters of the design. However, the possibilities of the real utilisation are fully dependent on the safety conditions. Therefore, the research process presented in this article is necessary for building a prototype of this system. As the area is relatively extensive, it was necessary to divide it into several parts. The design and its importance for the industry are presented in the first part. The second part deals with analytical calculations and numerical simulations of the quasi-static loading of the structure. Furthermore, the article considers the kinematic and dynamic area of the vehicle. The authors also deal with the sensitivity analysis of the change of the wheel camber. This simulation is realised by the programme Altair Motionview for the vertical motion of the front axle through the presented design.

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Section: Dynamic Analysis Of the Vehicle In The Programme Simpackmentioning

confidence: 99%

Development of a New System for Attaching the Wheels of the Front Axle in the Cross-Country Vehicle

et al. 2020

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“…Sensitivity analysis aids in understanding how the model solution is affected with a change in its various inputs that might be either external or internal. In [32], the importance of the simulation-based sensitivity analysis is shown by randomly changing selected parameters functioning to logistic facilities. In our research, transportation cost and terminal cost are critical parameters in the optimization, which have a tradeoff relationship.…”

Section: Scenario 1 Processing Rate Improves Upper Problem Scenariomentioning

confidence: 99%

Improving the Operational Efficiency of Parcel Delivery Network with a Bi-Level Decision Making Model

Nam

Park

2020

Sustainability

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This article proposes a mathematical model for integrating terminal operation strategies with shipment scheduling. We are motivated by findings from the literature on the integrated design of logistic systems. The objective of this research is to efficiently utilize the existing hub terminals and transport network by considering the minimization of costs related to terminal congestion, transport, and carbon dioxide (CO2) emissions. Cooperative behaviors of terminal managers and fleet assignment managers are modeled in a bi-level problem framework. The total cost includes a processing cost and transport cost, and CO2 related to the assigned fleets. We introduce a terminal cost function to capture the relationship between unit processing cost with respect to hub delay, which allows us to find the minimum cost path and efficiently distribute shipments to hub terminals. The case study shows that the collaborative logistics outperforms a single routing strategy and capacity expansions in minimization of both total cost and CO2 emissions.

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“…Industry 4.0 is a combination of information technology and highly controllable computer-driven machines [ 4 , 5 ]. The Industry 4.0 vision has promoted smart mine concepts in the mining area by augmenting all assets with sensor-based connectivity.…”

Section: Introductionmentioning

confidence: 99%

Cyber-Attacks Risk Analysis Method for Different Levels of Automation of Mining Processes in Mines Based on Fuzzy Theory Use

Tubis

Werbińska-Wojciechowska

Góralczyk

et al. 2020

Sensors

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The rising automation level and development of the Industry 4.0 concept in the mining sector increase the risk of cyber-attacks. As a result, this article focuses on developing a risk analysis method that integrates Kaplan’s and Garrick’s approach and fuzzy theory. The proposed approach takes into account the level of automation of the operating mining processes. Moreover, it follows five main steps, including identifying the automation level in a selected mine, definition of cyber-attack targets, identification of cyber-attack techniques, definition of cyber-attack consequences, and risk ratio assessment. The proposed risk assessment procedure was performed according to three cyber-attack targets (databases, internal networks, machinery) and seven selected types of cyber-attack techniques. The fuzzy theory is implemented in risk parameter estimation for cyber-attack scenario occurrence in the mining industry. To illustrate the given method’s applicability, seven scenarios for three levels of mine automation are analyzed. The proposed method may be used to reveal the current cybersecurity status of the mine. Moreover, it will be a valuable guide for mines in which automation is planned in the near future.

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Sensitivity Analysis of Selected Parameters in the Order Picking Process Simulation Model, with Randomly Generated Orders

Cited by 21 publications

References 86 publications

Development of a New System for Attaching the Wheels of the Front Axle in the Cross-Country Vehicle

Development of a New System for Attaching the Wheels of the Front Axle in the Cross-Country Vehicle

Improving the Operational Efficiency of Parcel Delivery Network with a Bi-Level Decision Making Model

Cyber-Attacks Risk Analysis Method for Different Levels of Automation of Mining Processes in Mines Based on Fuzzy Theory Use

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