Ellissoide di inerzia, equazioni di Eulero e applicazioni al moto alla Poinsot e ai fenomeni giroscopici

Viene definito e descritto l'ellissoide di inerzia relativo ad un corpo rigido rispetto ad un punto e la corrispondente matrice di inerzia. Inoltre si definiscono gli angoli di Eulero e vengono ricavate le equazioni di Eulero. Tali strumenti vengono poi utilizzati nell'analisi del moto del corpo rigido libero e con punto fisso e nello studio del moto alla Poinsot di un corpo a struttura giroscopica e dei fenomeni giroscopici.

Miss Yvonne Arnaud as "Suzanne" in "The girl in the taxi"

Signatur des Originals: S 36/F02611

"The girl in the taxi", Miss Yvonn Arnaud as "Suzanne" and Mr. Alec Fraser as "Réné"

Signatur des Originals: S 36/F02612

"The girl in the taxi.", Mr. C. H. Workman as "Pomarel" and Miss Yvonne Arnaud as "Suzanne"

Signatur des Originals: S 36/F02613

"The girl in the taxi.", Miss Yvonne Arnaud as "Suzanne", Messrs. Arthur Playfair as "Baron Dauvray", Alec Fraser as "Réné" and Robert Averell as "Hubert Dauvray"

Signatur des Originals: S 36/F02614

"The girl in the taxi.", Miss Yvonne Arnaud as "Suzanne"

Signatur des Originals: S 36/F02615

Margaret Paton als Jacqueline, Alec Fraser als Réné, Szenenfoto, in: Anthony Mars: The girl in the taxi

Signatur des Originals: S 36/F05689

Airport Taxi Planning: Lagrangian Decomposition

The airport taxi planning (TP) module is a decision tool intended to guide airport surface management operations. TP is defined by a flow network optimization model that represents flight ground movements and improves aircraft taxiing routes and schedules during periods of aircraft congestion. TP is not intended to operate as a stand‐alone tool for airport operations management: on the contrary, it must be used in conjunction with existing departing and arriving traffic tools and overseen by the taxi planner of the airport, also known as the aircraft ground controller. TP must be flexible in order to accommodate changing inputs while maintaining consistent routes and schedules already delivered from past executions. Within this dynamic environment, the execution time of TP may not exceed a few minutes. Classic methods for solving binary multi‐commodity flow networks with side constraints are not efficient enough; therefore, a Lagrangian decomposition methodology has been adapted to solve it. We demonstrate TP Lagrangian decomposition using actual data from the Madrid‐Barajas Airport