Loading...
Please wait, while we are loading the content...
Similar Documents
Contribution de l'analyse thermique MBSE et 3D à la conception du moteur de l'actionneur de stabilisateur d'un avion régional
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lenoble, Grégoire Olivier, Marie Donjat, David Steblinkin, Anton |
| Copyright Year | 2016 |
| Abstract | Aircraft hydraulic systems traditionally provide power for flight surface actuation, but are heavy, complex to maintain in service, and consume significant amounts of energy. Electrical based actuators help tackle these issues, but come with other challenges, such as thermal integration. Indeed, the close vicinity of several heat sources (hydraulic pump and bloc, electrical motor, control unit) in a cavity that is only passively cooled makes it difficult to guarantee the electrical motor and Electronic Control Unit (ECU) safe operation over the entire aircraft mission from a thermal point of view. In addition, systems thermal behavior can be critical when used inside composite structures that can lose durability under high temperatures. Collaborative European-Russian project RESEARCH (w3.onera.fr/RESEARCH/) has enabled the thermal analysis of a regional aircraft stabilizer bay that houses two elevator actuators, so as to support and optimize actuator motor design. This analysis largely relied on Model Based Systems Engineering (MBSE) given the early actuator design phase and the need for mission-wide analysis, through a number of varying scenarios. However the additional insight of three-dimensional analysis has also been included with simulations performed at thermally critical flight conditions. The methodology, models, outputs and implications for motor design gained from this study are described in this paper. Nomenclature Abscoeff S d t T V W z H HTC Surface absorption coefficient Tube differential section (m 2) Time (s) Temperature Volume (m 3) Work (J) Tube stroke (m) Altitude (m) Convective Heat coefficient (W/m²/K) |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.sft.asso.fr/Local/sft/dir/user-3775/documents/actes/Congres_2016/resumes_toulouse/143.pdf |
| Alternate Webpage(s) | https://hal.archives-ouvertes.fr/hal-01396607/document |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
