Optimal aircraft ground scheduling is a well known NP-Hard problem and hence many heuristics are used to generate schedules within realistic run-times. These heuristics are designed to run fast, but often do not promise any guarantee about the solution quality. Inspired from the railway scheduling algorithms by D’Ariano et al.[1] and Mannino et al.[2], this paper introduces a Branch & Bound bas...

The integrated aircraft routing and crew scheduling problem consists in determining a minimum-cost set of aircraft routes and crew pairings such that each 1ight leg is covered by one aircraft and one crew, and side constraints are satis2ed. While some side constraints involve only crews or aircraft, linking constraints impose minimum connection times for crews that depend on aircraft connection...

Aircfrat use nose wheel steering system when landing, take off and landing. In the research discuses problem of B737 – 800 to minimize problems ini system. The stage this are study work steering. Then look for cause using FMEA analysis method. This is based on data from AFML (aircraft Flight Manual Log) Aircraft January 2020 Junu 2021 at Lion Airline. results showed that in failure mode process...

We address a problem in air traffic management: scheduling flights in order to minimize the maximum number of aircraft that simultaneously lie within a single air traffic control sector at some time t. Since the problem is a generalization of the NP-hard nowait job-shop scheduling, we resort to heuristics. We report experimental results for real-world flight data.

Based on heavy aircraft main landing gear tires touchdown skidding process, patents have been registered since the 1940s to improve tire safety, decrease the substantial wear and smoke that results from every landing by spinning the rear wheels before touchdown. A single wheel has been modeled as a mass-spring-damper system using ANSYS mechanical transient simulation to analyze static and pre-r...

The NASA passive Final Approach Spacing Tool (FAST) provides advisory information to the terminal air traffic controller for sequencing and merging of landing aircraft. It consists of the Trajectory Synthesizer (TS) and the Scheduling Logic (SL). FAST has undergone extensive field testing and performance evaluations of the FAST TS algorithms have been conducted. However, no analytical performan...

In the short/vertical take-off and landing aircraft propulsion system, vertical take-off/landing rapid flight are switched through engagement disconnection of dry friction clutch. The smooth connection clutch is crucial for mobility reliability this type aircraft. However, vibrates generates a large amount heat at high speed, which affects performance practice, when pressure rises quickly, time...

This paper presents an optimization model for an aircraft taxi-scheduling problem that arises on the surface of airports. Though formulations are already available for this problem in the literature, they either ignore aircraft type or do not include all the safety constraints that are required to keep any two aircraft separated by a minimum distance at any time instant. The proposed model impr...

Airline disruptions incurred huge cost for airlines and serious inconvenience for travelers. In this paper, we study the integrated aircraft and crew schedule recovery problem. A two stage heuristic algorithm for the integrated recovery problem is proposed. In the first stage, the integrated aircraft recovery and flight-rescheduling model with partial crew consideration is built. This model is ...