Results 61 to 70 of about 16,873 (217)

Design Challenges to Expand the Functionality of Drones: Deformable Rotorcraft and Nature‐Inspired Flapping Drones

Advanced Intelligent Systems, Volume 8, Issue 3, March 2026.
This review systematically analyzes deformable drones, including extendable, foldable, and tilting configurations, along with nature‐inspired flapping rotorcraft. By classifying deformation principles and structural mechanisms, design trade‐offs, functional capabilities, and future development potential are highlighted.
Ju‐Hee Lee, Sumin Jung, Jinwoo Jang, Yeji Han, Minchae Kang, Jihun Seong, Suyeon Seo, Eunsol Park, Haesol Kwak, Min‐Woo Han   +9 more
wiley   +1 more source

Parametric Fuselage Geometry Generation and Aerodynamic Performance Prediction in Preliminary Rotorcraft Design [PDF]

, 2013
The creation of an integrated rotorcraft conceptual and preliminary design framework at DLR involved the development of geometry and fuselage aerodynamics modules at the Institute of Aerodynamics and Flow Technology.
Kunze, Philipp
core  

Comparative Study of Soft In-Plane and Stiff In-Plane Tiltrotor Blade Aerodynamics in Conversion Flight, Using CFD-CSD Coupling Approach

Aerospace
Tiltrotors permit aircrafts to operate vertically with lift, yet convert to ordinary forward flight with thrust. The challenge is to design a tiltrotor blade yielding maximum lift and thrust that converts smoothly without losing integrity or efficiency ...
Zhiyuan Hu, Peng Yu, Guohua Xu, Yongjie Shi, Feng Gu, Aijun Zou   +5 more
doaj   +1 more source

From “Mirror Flower, Water Moon” to Multi‐Task Visual Prospective Representation Learning for Unmanned Aerial Vehicles Indoor Mapless Navigation

Journal of Field Robotics, Volume 43, Issue 2, Page 655-680, March 2026.
ABSTRACT Vision‐based deep learning models have been widely adopted in autonomous agents, such as unmanned aerial vehicles (UAVs), particularly in reactive control policies that serve as a key component of navigation systems. These policies enable agents to respond instantaneously to dynamic environments without relying on pre‐existing maps.
Yingxiu Chang, Yongqiang Cheng, John Murray, Muhammad Khalid, Umar Manzoor   +4 more
wiley   +1 more source

Revealing the Internal Structure of Mars‐Analog Glaciers From Drone‐Based Radar Sounding

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Martian debris‐covered glaciers (DCGs) contain large quantities of water ice beneath a protective layer of rock and dust. Properties of the overlying regolith such as density and depth to ice are critical parameters for guiding in situ resource utilization (ISRU) of water and coring missions targeting potential habitats.
Roberto J. Aguilar, John W. Holt, Michael S. Christoffersen, Tyler M. Meng, Stefano Nerozzi   +4 more
wiley   +1 more source

Titan's Plains Revealed: Evidence for a Layered Surface

Journal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract Undifferentiated plains are the most common terrain type on Titan, yet their composition and geologic history remain poorly understood. To better characterize their physical properties, we combined Cassini RADAR measurements from nadir altimetry and side‐looking SAR modes. We analyzed these data using radar backscatter models, finding that the
A. Fine, V. Poggiali, D. Lalich, A. Hayes   +3 more
wiley   +1 more source

Acceptance testing of a rotorcraft flight simulator for research and teaching: the importance of unified metrics

, 2009
The expanding requirements for rotorcraft operations in harsh environments along with the introduction of tilt- rotor aircraft into both civil and military service and the extensive replacement of large numbers of airframes dating from the 1960s and ...
White, M. A., Perfect, P. A., Berryman, A., Gubbels, A. W. B., Padfield, G. D. A.   +4 more
core  

Improving rotorcraft survivability to RPG attack using inverse methods [PDF]

, 2009
This paper presents the results of a preliminary investigation of optimal threat evasion strategies for improving the survivability of rotorcraft under attack by rocket propelled grenades (RPGs).
Anderson, D., D. Anderson, Thomson, D.G., D. G. Thomson   +3 more
core   +1 more source

Onboard Video Stabilization for Rotorcrafts

, 2017
The main goal of this article is a stabilization system for cameras onboard mini Rotor UAVs that minimize the effect of the undesired movements on captured videos through the selection of, an autopilot and a ground control station for data extraction, an inertial stabilized platform (gimbal), an onboard computer for image processing, the communication ...
Wilbert G. Aguilar, David Loza, Luis Segura, Alexander Ibarra, Thomas Abaroa, Ronnie Fuertes   +5 more
openaire   +2 more sources

Super‐Convergent Meshless Computations for Active Vibration Control of Bi‐Directional Functionally Graded Terfenol‐D Beams with Twisted Geometry

Advanced Theory and Simulations, Volume 9, Issue 1, January 2026.
This study develops a superconvergent meshless method to analyze and control vibrations in twisted, bidirectional functionally graded Terfenol‐D beams. By optimizing magnetostrictive patch placement, it demonstrates effective vibration suppression under dynamic loads, highlighting the design potential of strategically graded materials in complex ...
Mukund A. Patil, Tanmoy Mukhopadhyay, Susmita Naskar   +2 more
wiley   +1 more source