ITB high altitude long endurance UAV development: Past and future

Moelyadi, Mochammad Agoes; Zulkarnain, M.; Maliky, Nu’man Amri

doi:10.1063/5.0060623

Cited by 3 publications

(8 citation statements)

References 9 publications

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“…The UAV model can be seen in Figure 1 (Moelyadi et al , 2021a, b, c) with general specification as 12 m length front and 15 m length rear wing, triple boom each with 4.5 m length and 0.5 m vertical tail. The two propellers are mounted in the joint between the rear wing to the right-vertical tail and the rear wing to the left-vertical tail.…”

Section: Design Methodologymentioning

confidence: 99%

“…More specifically, the UAV’s propellers in cruise condition should be able to deliver the desired thrust without exceeding the motor's maximum throttle. The specification of the UAV in cruise conditions is shown in Table 1 (Moelyadi et al , 2021a, b, c). The atmospheric condition in cruise flight can be found by using ISA Calculator (Standard Atmosphere Calculator, 1976).…”

Section: Design Methodologymentioning

confidence: 99%

“…The main points of specifications related to propeller design and the additional general view are shown in Table 1 (Moelyadi et al , 2021a, b, c).…”

Section: Design Methodologymentioning

confidence: 99%

“…The HALE UAV ITB v.4 mission profile for both cruise and climb phases can be seen in Table 7 (Moelyadi et al , 2021a, b, c). For various altitudes, the required throttle and UAV velocity can differ from each phase.…”

Section: Design Methodologymentioning

confidence: 99%

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Computational fluid dynamics (CFD) based propeller design improvement for high altitude long endurance (HALE) UAV

Maulana

Amalia

Moelyadi

2022

IJIUS

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PurposeHigh Altitude Long Endurance Unmanned Aerial Vehicle (HALE UAV) driven by a hybrid power between battery and solar panel have attracted many researchers. The HALE UAV which develops at Bandung Institute of Technology has design requirements of a 63 kg MTOW with a cruise velocity of 22.1 m/s at an altitude of 60,000 ft propelled by two propellers. The main problems that arise with the propellers gained from the market are these propellers cannot operate properly at the cruise phase due to inadequate thrust and high drag value. This paper aims to design a propeller that solves those problems.Design/methodology/approachThe Larrabee method is used to design this propeller geometry with an output in the form of a chord and twist distribution. The CFD approach method is used to improve the design resulting from the Larrabee method.FindingsThis study shows that the inputted thrust value of the propeller designed using the Larrabee method is always higher than the thrust value resulting from the CFD simulation with a difference of around 20% so a design improvement process using CFD is required.Originality/valueThe analysis of propeller implementation in various mission profiles shows that this propeller can operate fully from climbing at sea level to cruising flight at an altitude of 60,000 ft. The same procedure can be applied in other HALE UAV cases to generate a propeller design with different objectives.

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Section: Design Methodologymentioning

confidence: 99%

Section: Design Methodologymentioning

confidence: 99%

“…The main points of specifications related to propeller design and the additional general view are shown in Table 1 (Moelyadi et al , 2021a, b, c).…”

Section: Design Methodologymentioning

confidence: 99%

Section: Design Methodologymentioning

confidence: 99%

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Computational fluid dynamics (CFD) based propeller design improvement for high altitude long endurance (HALE) UAV

Maulana

Amalia

Moelyadi

2022

IJIUS

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“…In recent years, unmanned intelligent equipment represented by drones has developed rapidly and played a vital role in hot events such as the Russian-Ukrainian conflict [4]. However, it is worth noting that the research on the evaluation indicators of the operational evaluation test for unmanned intelligent equipment has not yet been fully carried out.…”

Section: Introductionmentioning

confidence: 99%

Research on evaluation indicator system of unmanned intelligent equipment operational test

Kang

Xiang

Cai

et al. 2022

Seventh International Conference on Electromechanical Control Technology and Transportation (ICECTT 2022)

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Development of an Automatic Solar Tracker Control System for a Tandem-Winged UAV and Its Implementation Strategies

Jenie

Pardomoan

Moelyadi

2023

Drones

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Solar power is a popular option for powering Unmanned Aerial Vehicles (UAVs) due to its ability to provide power for long-endurance flight. However, solar-powered UAVs face challenges, including operational reliability problems. To address their operational reliability issues, this paper proposes an automatic solar tracker system and tests two implementation strategies for controlling a tandem-winged and solar-powered UAV, developed by the Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung. Due to its unconventional configuration, a mathematical model for the UAV is developed to evaluate the vehicle’s dynamic characteristics. Based on these, three feedback control systems are designed, i.e., roll attitude control, a heading tracker, and a solar tracker. Two implementation strategies are proposed to combine the control systems, i.e., the mode-switching and the simultaneous tracking strategies. A series of simulations are then conducted to check the vehicle’s overall flight performance, as well as the gathering of solar energy. The mode-switching strategy was able to gather up to 13% more solar energy than the simultaneous strategy, which could only reach slightly above 2%. Mode-switching, however, resulted in a shorter range compared to the latter, due to the time spent in the charging mode, flying in a circular pattern.

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ITB high altitude long endurance UAV development: Past and future

Cited by 3 publications

References 9 publications

Computational fluid dynamics (CFD) based propeller design improvement for high altitude long endurance (HALE) UAV

Computational fluid dynamics (CFD) based propeller design improvement for high altitude long endurance (HALE) UAV

Research on evaluation indicator system of unmanned intelligent equipment operational test

Development of an Automatic Solar Tracker Control System for a Tandem-Winged UAV and Its Implementation Strategies

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