{"title":"Aerodynamic robust optimization design of the coaxial rotor for a Mars helicopter","authors":"Hong Zhao, Wei Zhang, Ming Xu, Gen Leng","doi":"10.1016/j.actaastro.2024.11.056","DOIUrl":null,"url":null,"abstract":"This paper addresses the challenges of designing aerodynamic rotors for Mars helicopters, particularly in the highly variable Martian atmosphere. Traditional deterministic rotor designs targeted at a single atmospheric condition often result in significant performance deviations under varying conditions. This research initiates with an in-depth analysis of Martian atmospheric characteristics, followed by the establishment of a probabilistic model for atmospheric density. Subsequently, a robust aerodynamic model for a Mars coaxial rotor is developed, utilizing a combination of the viscous vortex particle method and the vortex in cell method. Through robust optimization, this study enhances the rotor's resilience to atmospheric fluctuations, ensuring improved flight safety and reliability. The findings underscore the necessity and effectiveness of robust optimization techniques in enhancing the adaptability and operational stability of rotorcraft on Mars in response to uncertainties in atmospheric density.","PeriodicalId":44971,"journal":{"name":"Acta Astronautica","volume":"20 1","pages":""},"PeriodicalIF":3.1000,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Astronautica","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.actaastro.2024.11.056","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, AEROSPACE","Score":null,"Total":0}
引用次数: 0
Abstract
This paper addresses the challenges of designing aerodynamic rotors for Mars helicopters, particularly in the highly variable Martian atmosphere. Traditional deterministic rotor designs targeted at a single atmospheric condition often result in significant performance deviations under varying conditions. This research initiates with an in-depth analysis of Martian atmospheric characteristics, followed by the establishment of a probabilistic model for atmospheric density. Subsequently, a robust aerodynamic model for a Mars coaxial rotor is developed, utilizing a combination of the viscous vortex particle method and the vortex in cell method. Through robust optimization, this study enhances the rotor's resilience to atmospheric fluctuations, ensuring improved flight safety and reliability. The findings underscore the necessity and effectiveness of robust optimization techniques in enhancing the adaptability and operational stability of rotorcraft on Mars in response to uncertainties in atmospheric density.
期刊介绍:
Acta Astronautica is sponsored by the International Academy of Astronautics. Content is based on original contributions in all fields of basic, engineering, life and social space sciences and of space technology related to:
The peaceful scientific exploration of space,
Its exploitation for human welfare and progress,
Conception, design, development and operation of space-borne and Earth-based systems,
In addition to regular issues, the journal publishes selected proceedings of the annual International Astronautical Congress (IAC), transactions of the IAA and special issues on topics of current interest, such as microgravity, space station technology, geostationary orbits, and space economics. Other subject areas include satellite technology, space transportation and communications, space energy, power and propulsion, astrodynamics, extraterrestrial intelligence and Earth observations.