The Effect of Manufacturing Quality on Rocket Precision
The effect of manufacturing quality on rocket impact point dispersion is analyzed. The approach presented here applies to any type of rocket. Here, manufacturing quality is demonstrated for the unguided rocket, and by simulating four typical manufacturing errors: erroneously manufactured warhead, mi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-06-01
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| Series: | Aerospace |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2226-4310/8/6/160 |
| _version_ | 1797531416692523008 |
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| author | Zvonko Trzun Milan Vrdoljak Hrvoje Cajner |
| author_facet | Zvonko Trzun Milan Vrdoljak Hrvoje Cajner |
| author_sort | Zvonko Trzun |
| collection | DOAJ |
| description | The effect of manufacturing quality on rocket impact point dispersion is analyzed. The approach presented here applies to any type of rocket. Here, manufacturing quality is demonstrated for the unguided rocket, and by simulating four typical manufacturing errors: erroneously manufactured warhead, misalignment between the warhead and engine chamber, asymmetrically installed propellant, and error in nozzle manufacturing. A new methodology is proposed, which combines a 3D CAD model of the asymmetrical projectile (due to manufacturing errors) and the improved Six-degrees-of-freedom (6DOF) model of its flight into a comprehensive Monte-Carlo simulation. In that way, the rocket trajectory dispersion is correlated directly to the imperfection of the manufacturing process. Three quality levels are simulated (low, standard, and high quality), and each of the analyzed manufacturing errors depends on the chosen quality. The results show how important it is to impose the highest quality on nozzle manufacturing, and if this condition is not met, reveal if strict tolerances applied to other steps of the manufacturing process can compensate for the consequential drop of precision. |
| first_indexed | 2024-03-10T10:43:28Z |
| format | Article |
| id | doaj.art-f31e8c97b73b4ee68985cceb68ffc34d |
| institution | Directory Open Access Journal |
| issn | 2226-4310 |
| language | English |
| last_indexed | 2024-03-10T10:43:28Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj.art-f31e8c97b73b4ee68985cceb68ffc34d2023-11-21T22:48:25ZengMDPI AGAerospace2226-43102021-06-018616010.3390/aerospace8060160The Effect of Manufacturing Quality on Rocket PrecisionZvonko Trzun0Milan Vrdoljak1Hrvoje Cajner2Croatian Military Academy “Dr Franjo Tuđman”, Ilica 256b, 10000 Zagreb, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lucica 5, 10000 Zagreb, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lucica 5, 10000 Zagreb, CroatiaThe effect of manufacturing quality on rocket impact point dispersion is analyzed. The approach presented here applies to any type of rocket. Here, manufacturing quality is demonstrated for the unguided rocket, and by simulating four typical manufacturing errors: erroneously manufactured warhead, misalignment between the warhead and engine chamber, asymmetrically installed propellant, and error in nozzle manufacturing. A new methodology is proposed, which combines a 3D CAD model of the asymmetrical projectile (due to manufacturing errors) and the improved Six-degrees-of-freedom (6DOF) model of its flight into a comprehensive Monte-Carlo simulation. In that way, the rocket trajectory dispersion is correlated directly to the imperfection of the manufacturing process. Three quality levels are simulated (low, standard, and high quality), and each of the analyzed manufacturing errors depends on the chosen quality. The results show how important it is to impose the highest quality on nozzle manufacturing, and if this condition is not met, reveal if strict tolerances applied to other steps of the manufacturing process can compensate for the consequential drop of precision.https://www.mdpi.com/2226-4310/8/6/160rocket asymmetry6DOF modelMonte Carlo simulation3D CAD modellingquality assurancequality levels |
| spellingShingle | Zvonko Trzun Milan Vrdoljak Hrvoje Cajner The Effect of Manufacturing Quality on Rocket Precision Aerospace rocket asymmetry 6DOF model Monte Carlo simulation 3D CAD modelling quality assurance quality levels |
| title | The Effect of Manufacturing Quality on Rocket Precision |
| title_full | The Effect of Manufacturing Quality on Rocket Precision |
| title_fullStr | The Effect of Manufacturing Quality on Rocket Precision |
| title_full_unstemmed | The Effect of Manufacturing Quality on Rocket Precision |
| title_short | The Effect of Manufacturing Quality on Rocket Precision |
| title_sort | effect of manufacturing quality on rocket precision |
| topic | rocket asymmetry 6DOF model Monte Carlo simulation 3D CAD modelling quality assurance quality levels |
| url | https://www.mdpi.com/2226-4310/8/6/160 |
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