This thesis discusses the development of a parametric model for calculating the non-recurring engineering hours required for the new design of all components of a military aircraft, the M-345, as well as estimating the hours needed for implementing modifications and upgrades to the aircraft. The construction of this model begins with the study of the methodology developed by Roskam, who calculated the new costs of an aircraft based on platforms available in the 1970s. The methodology has thus been suitable modified to be appropriate for the current generation of military aircraft. Once the robustness of the new model was verified through comparison with the TruePlanning software, it was calibrated to estimate the non-recurring engineering costs of each component of the M-345 platform. In the final phase of the thesis, algorithms were implemented for calculating modification hours, specifically for the structural part, powerplant, equipment, software and ground and flight tests. All the implemented methodologies were ultimately validated through company parametric cost estimation models and real case studies.
La seguente tesi tratta la costruzione di un modello parametrico per il calcolo delle ore d’ingegneria non ricorrenti per la progettazione ex novo di tutte le componenti di un velivolo militare M-345 e la stima delle ore necessarie per l’implementazione di modifiche e upgrade del velivolo. La costruzione di questo modello parte dallo studio della metodologia elaborata da Roskam, il quale calcola i costi a nuovo di un velivolo basandosi sulle piattaforme disponibili negli anni 70. La metodologia è dunque stata opportunamente modificata al fine di essere consona per la presente generazione di velivoli militari. Una volta verificata la robustezza del nuovo modello, tramite il confronto con il software TruePlanning, questo è stato tarato per la stima dei costi d’ingegneria non ricorrenti di ogni componente della piattaforma M-345. Nell’ultima fase della tesi sono stati implementati degli algoritmi per il calcolo delle ore di modifica, più precisamente sono stati predisposti per la parte strutturale, il motore e i suoi sistemi, gli equipaggiamenti, il software e i test a terra e in volo. La totalità delle metodologie implementate è stata validata infine attraverso modelli di stima costo parametrica aziendale e tramite casi di studio reali.
Parametric estimation of non-recurring engineering hours for an M-345
LAPERSI, LISA
2023/2024
Abstract
This thesis discusses the development of a parametric model for calculating the non-recurring engineering hours required for the new design of all components of a military aircraft, the M-345, as well as estimating the hours needed for implementing modifications and upgrades to the aircraft. The construction of this model begins with the study of the methodology developed by Roskam, who calculated the new costs of an aircraft based on platforms available in the 1970s. The methodology has thus been suitable modified to be appropriate for the current generation of military aircraft. Once the robustness of the new model was verified through comparison with the TruePlanning software, it was calibrated to estimate the non-recurring engineering costs of each component of the M-345 platform. In the final phase of the thesis, algorithms were implemented for calculating modification hours, specifically for the structural part, powerplant, equipment, software and ground and flight tests. All the implemented methodologies were ultimately validated through company parametric cost estimation models and real case studies.File | Dimensione | Formato | |
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2024_12_Lapersi_Tesi.pdf
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Descrizione: Testo tesi
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2024_12_Lapersi_Executive Summary.pdf
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Descrizione: Testo executive summary
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https://hdl.handle.net/10589/229634