Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Dynamics Of Circular Motion: Applications01:17

Dynamics Of Circular Motion: Applications

9.5K
Suppose a car moves on flat ground and turns to the left. The centripetal force causing the car to turn in a circular path is due to friction between the tires and the road. For this, a minimum coefficient of friction is needed, or the car will move in a larger-radius curve and leave the roadway. Let's now consider banked curves, where the slope of the road helps in negotiating the curve. The greater the angle of the curve, the faster one can take the curve. It is common for race tracks for...
9.5K
Lift01:23

Lift

477
Lift is a fundamental aerodynamic force that acts perpendicular to the direction of airflow. It plays a central role in achieving and sustaining flight and in stabilizing various vehicles. Lift primarily originates from pressure differences created across surfaces, such as an airfoil. A lower pressure region forms above the wing, while a higher pressure region forms below it, generating an upward force. This differential results from the shape and orientation of the airfoil, enabling the wing...
477
Controller Configurations01:22

Controller Configurations

357
Controller configurations are crucial in a car's cruise control system because they manage speed over time to maintain a consistent pace regardless of road conditions, thereby meeting design goals. In traditional control systems, fixed-configuration design involves predetermined controller placement. System performance modifications are known as compensation.
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
357
Multi-input and Multi-variable systems01:22

Multi-input and Multi-variable systems

397
Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence of...
397
Stability of structures01:14

Stability of structures

490
In mechanical engineering, the stability of systems under various forces is critical for designing durable and efficient structures. One fundamental way to explore these concepts is by analyzing systems like two rods connected at a pivot point, O, with a torsional spring of spring constant k at the pivot point. This system is similar in appearance to a scissor jack used to change tires on a car. In this case, the arms of the linkage (equivalent to the rods in this system) are entirely vertical,...
490
Time-Domain Interpretation of PD Control01:07

Time-Domain Interpretation of PD Control

379
Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...
379

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The Department of Cardiovascular Anesthesia of The Texas Heart Institute: An Informal History.

Texas Heart Institute journal·2025
Same author

Layered metals as polarized transparent conductors.

Nature communications·2023
Same author

The Texas Heart Institute Anesthesia Experience in China, 1985.

Journal of cardiothoracic and vascular anesthesia·2022
Same author

Who Was the First Cardiovascular Anesthesia Fellow?

Anesthesia and analgesia·2021
Same author

Complications of cerebrospinal fluid drainage after thoracic aortic surgery: a review of 504 patients over 5 years.

The Journal of thoracic and cardiovascular surgery·2013
Same author

Radiation protection principles.

Journal of radiological protection : official journal of the Society for Radiological Protection·2012
Same journal

A Shape-Based Approach For Low-Thrust Earth-Moon Trajectories Initial Design.

Journal of guidance, control, and dynamics : a publication of the American Institute of Aeronautics and Astronautics devoted to the technology of dynamics and control·2022
Same journal

Real-Time Estimation of Bare-Airframe Frequency Responses from Closed-Loop Data and Multisine Inputs.

Journal of guidance, control, and dynamics : a publication of the American Institute of Aeronautics and Astronautics devoted to the technology of dynamics and control·2020
Same journal

Analytic Gradient Computation for Bounded-Impulse Trajectory Models Using Two-Sided Shooting.

Journal of guidance, control, and dynamics : a publication of the American Institute of Aeronautics and Astronautics devoted to the technology of dynamics and control·2020
Same journal

Data Mining Approach to Poincaré Maps in Multi-Body Trajectory Design.

Journal of guidance, control, and dynamics : a publication of the American Institute of Aeronautics and Astronautics devoted to the technology of dynamics and control·2020
Same journal

Theory of Fractional-Polynomial Powered Descent Guidance.

Journal of guidance, control, and dynamics : a publication of the American Institute of Aeronautics and Astronautics devoted to the technology of dynamics and control·2019
Same journal

An Automated Solution of the Low-Thrust Interplanetary Trajectory Problem.

Journal of guidance, control, and dynamics : a publication of the American Institute of Aeronautics and Astronautics devoted to the technology of dynamics and control·2018
See all related articles

Related Experiment Video

Updated: Jan 19, 2026

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods
09:17

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

Published on: April 23, 2018

11.2K

Dynamics and Control of In-Flight Wingtip Docking.

John R Cooper1, Paul M Rothhaar2

  • 1Research Engineer, Research Department, 100 Exploration Way, Hampton, VA 23666, National Institute of Aerospace.

Journal of Guidance, Control, and Dynamics : a Publication of the American Institute of Aeronautics and Astronautics Devoted to the Technology of Dynamics and Control
|September 20, 2019
PubMed
Summary
This summary is machine-generated.

NASA's Project Link! explores aerial docking for fixed-wing aircraft, enabling them to link in flight. This research introduces realistic aerodynamic models and guidance for successful in-air wingtip docking, enhancing mission capabilities.

More Related Videos

Building an Enhanced Flight Mill for the Study of Tethered Insect Flight
12:09

Building an Enhanced Flight Mill for the Study of Tethered Insect Flight

Published on: March 10, 2021

3.5K
Author Spotlight: Streamlining Protein Target Prediction and Validation via Molecular Docking and CETSA
10:21

Author Spotlight: Streamlining Protein Target Prediction and Validation via Molecular Docking and CETSA

Published on: February 23, 2024

3.7K

Related Experiment Videos

Last Updated: Jan 19, 2026

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods
09:17

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

Published on: April 23, 2018

11.2K
Building an Enhanced Flight Mill for the Study of Tethered Insect Flight
12:09

Building an Enhanced Flight Mill for the Study of Tethered Insect Flight

Published on: March 10, 2021

3.5K
Author Spotlight: Streamlining Protein Target Prediction and Validation via Molecular Docking and CETSA
10:21

Author Spotlight: Streamlining Protein Target Prediction and Validation via Molecular Docking and CETSA

Published on: February 23, 2024

3.7K

Area of Science:

  • Aerospace Engineering
  • Flight Dynamics
  • Control Systems

Background:

  • Multi-aircraft systems offer potential for enhanced aerodynamic performance and mission utility.
  • Previous research has not fully incorporated close-proximity aerodynamic effects or sophisticated guidance for aerial docking.

Purpose of the Study:

  • To investigate the feasibility of multi-aircraft aerial docking systems for fixed-wing vehicles.
  • To develop a dynamic model and control architecture for in-air docking.
  • To simulate and analyze the flight dynamics of linked aircraft ensembles.

Main Methods:

  • Developed a dynamic model incorporating 6-DOF equations of motion, a spring-damper-magnet linkage system, and the NASA-Burnham-Hallock wingtip vortex model.
  • Designed a control architecture featuring a leader-follower guidance algorithm and an inner-loop angular rate controller.
  • Constructed a simulation environment to analyze flight dynamics before and after linking.

Main Results:

  • Introduced close-proximity aerodynamic effects into the simulation framework for realistic aerial docking scenarios.
  • Successfully applied a leader-follower guidance algorithm for autonomous in-air wingtip docking.
  • Compared flight dynamic modes of the linked system with individual vehicles, demonstrating system feasibility.

Conclusions:

  • The developed model and control architecture provide a realistic simulation framework for aerial docking.
  • The study demonstrates the successful application of advanced guidance for in-air wingtip docking.
  • Project Link! shows promise for future multi-aircraft ensemble missions with improved performance and utility.