GreenSpace and Reuse Scenarios for Launcher industry

Heinrich, S.

doi:10.2514/6.2018-2600

Cited by 2 publications

(3 citation statements)

References 2 publications

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“…Before helicopter hoist systems were developed, the Fulton surface‐to‐air recovery system (Heinrich et al, 2018) was used by the US military to recover ground targets. The system requires deployment of a helium balloon from the ground that sends a lift line into the sky with one end of the lift line attached to the payload.…”

Section: Related Workmentioning

confidence: 99%

“…All above airborne ground object retrieval systems present practical methodologies in their specific use cases. However, some of them (e.g., Heinrich et al, 2018; Nonnenmacher & Jones, 2016; Young, 2007) involve complex manual processes which are difficult to automate in a compact robotic platform, and others are not suitable for retrieving a blade IMR robot for the reasons already discussed above. The magnetic grasping system (Fiaz et al, 2018) and a few seemingly straightforward approaches, for example, (a) landing the UAV on the top of BladeBug or (b) landing the UAV near BladeBug and commanding BladeBug to walk into the UAV's undercarriage, are challenging to achieve and have associated risks.…”

Section: Related Workmentioning

confidence: 99%

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A multirobot system for autonomous deployment and recovery of a blade crawler for operations and maintenance of offshore wind turbine blades

Jiang

Jovan

Moradi

et al. 2022

Journal of Field Robotics

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Offshore wind farms will play a vital role in the global ambition of net zero energy generation. Future offshore wind farms will be larger and further from the coast, meaning that traditional human‐based operations and maintenance approaches will become infeasible due to safety, cost, and skills shortages. The use of remotely operated or autonomous robotic assistants to undertake these activities provides an attractive alternative solution. This paper presents an autonomous multirobot system which is able to transport, deploy and retrieve a wind turbine blade inspection robot using an unmanned aerial vehicle (UAV). The proposed solution is a fully autonomous system including a robot deployment interface for deployment, a mechatronic link‐hook module (LHM) for retrieval, both installed on the underside of a UAV, a mechatronic on‐load attaching module installed on the robotic payload and an intelligent global mission planner. The LHM is integrated with a 2‐DOF hinge that can operate either passively or actively to reduce the swing motion of a slung load by approximately 30%. The mechatronic modules can be coupled and decoupled by special maneuvers of the UAV, and the intelligent global mission planner coordinates the operations of the UAV and the mechatronic modules for synchronous and seamless actions. For navigation in the vicinity of wind turbine blades, a visual‐based localization merged with the location knowledge from Global Navigation Satellite System has been developed. A proof‐of‐concept system was field tested on a full‐size decommissioned wind‐turbine blade. The results show that the experimental system is able to deploy and retrieve a robotic payload onto and from a wind turbine blade safely and robustly without the need for human intervention. The vicinity localization and navigation system have shown an accuracy of 0.65 and 0.44 m in the horizontal and vertical directions, respectively. Furthermore, this study shows the feasibility of systems toward autonomous inspection and maintenance of offshore windfarms.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

A multirobot system for autonomous deployment and recovery of a blade crawler for operations and maintenance of offshore wind turbine blades

Jiang

Jovan

Moradi

et al. 2022

Journal of Field Robotics

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“…One of the most successful attempts is the space shuttle program, which recovered its orbiter and the two solid boosters. However, the space shuttle's hard-landing technique demands testing and maintaining the recovered parts, which increase rather than decrease launching costs [5]. Nevertheless, an exciting vertical-recovery technique has recently been demonstrated by both SpaceX and Blue Origin: two space companies from the United States.…”

mentioning

confidence: 99%

Arresting-Cable System for Robust Terminal Landing of Reusable Rockets

Zhang¹,

Zhao²,

Ren³

et al. 2021

Journal of Spacecraft and Rockets

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Recent successful recovery techniques for rockets require that rockets maintain a vertical configuration with zero vertical and lateral velocities; otherwise, landings may fail. To relax this requirement, a new active-arresting system (inspired by the arresting gears used on aircraft carriers) is proposed herein to achieve a robust landing, even if the rocket deviates from the target position or has notable residual velocities and inclinations. The system consists of four deployable onboard hooks above the rocket's center of mass, an on-ground apparatus containing four arresting cables forming a square capture frame, and four buffer devices to actively catch and passively decelerate the landing rocket. To catch the rocket, the capture frame was controlled by servo motors via a simple proportional-derivative controller. After catching, the buffer devices generate decelerating forces to stop its motion. A flexible multibody model of the proposed system was built to evaluate its robust performance under various combinations of multiple uncertainties, such as noise measurement, time delay in the motor, initial conditions, and wind excitation. Using a quasi-Monte Carlo method, hundreds of deviated landing cases were generated and simulated. The results confirmed the robustness of the proposed system for achieving successful terminal landings.

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GreenSpace and Reuse Scenarios for Launcher industry

Cited by 2 publications

References 2 publications

A multirobot system for autonomous deployment and recovery of a blade crawler for operations and maintenance of offshore wind turbine blades

A multirobot system for autonomous deployment and recovery of a blade crawler for operations and maintenance of offshore wind turbine blades

Arresting-Cable System for Robust Terminal Landing of Reusable Rockets

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