Thrust Force
Thrust Force - Related Videos
10:50
Propulsion and Thrust
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2023
Source: Alexander S Rattner; Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, PA Aircraft, rockets, and ships produce propulsion by accelerating surrounding fluid or high temperature combustion products to high velocity. Because of the principle of conservation of momentum, the increased fluid velocity results in an effective thrust force on the vehicle. The thrust capabilities of propulsion systems are often measured with static thrust tests.
09:48
Multicopter Aerodynamics: Characterizing Thrust on a Hexacopter
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2023
Source: Prashin Sharma and Ella M. Atkins, Department of Aerospace Engineering, University of Michigan, Ann Arbor, MI Multicopters are becoming popular for a variety of hobby and commercial applications. They are commonly available as quadcopter (four thrusters), hexacopter (six thrusters), and octocopter (eight thrusters) configurations. Here, we describe an experimental process to characterize the multicopter performance. A modular small hexacopter platform providing propulsion unit...
08:41
Single Wavelength Shadow Imaging of Caenorhabditis elegans Locomotion Including Force Estimates
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Cited by 2 •
2014
The technique presented here measures the path of freely swimming microscopic species using single wavelength exposure. C. elegans are used to demonstrate shadow imaging as an inexpensive alternative to costly microscopes. This technique can be adapted to accommodate various orientations, environments and species to measure direction, speed, acceleration and forces.
03:13
Intermolecular Forces
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2020
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen bonds, and dispersion...
08:00
Force and Acceleration
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2023
Source: Nicholas Timmons, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA The goal of this experiment is to understand the components of force and their relation to motion through the use of Newton's second law by measuring the acceleration of a glider being acted upon by a force. Nearly every aspect of motion in everyday life can be described using Isaac Newton's three laws of motion. They describe how objects in...
FAQs
Thrust does not by itself determine whether a vehicle accelerates. Its effect must be considered with drag, lift, and weight, because propulsion performance is evaluated alongside these other forces. In physics, this force balance connects the momentum-producing action of an engine, propeller, or jet with the vehicle’s resulting motion and performance.
The accelerated mass is the part of the surrounding material or propellant driven backward by the propulsion system. Its backward motion creates the momentum change associated with propulsion, while the vehicle experiences the corresponding forward reaction. The material can be air, exhaust gases, or water, so the same principle applies across different vehicle types.
Unlike drag, lift, and weight, thrust is evaluated as the propulsion-related force in a vehicle’s force analysis. Keeping these forces distinct allows physicists to identify how much of the observed motion or performance is associated with propulsion rather than the other forces. This comparison supports systematic analysis of vehicles.
Researchers assess thrust by considering it together with drag, lift, and weight rather than treating it as an isolated measurement. This combined analysis relates the propulsive output to the vehicle’s overall motion and performance. It can be applied when examining engines, propellers, or jets, providing a framework for comparing propulsion systems across air, water, and space-related contexts.
Rockets depend on thrust analysis to explain how propulsion can overcome gravity. The relevant question is not simply whether the rocket produces a propulsive force, but how that force relates to the gravitational force acting on the vehicle. Studying this relationship connects momentum-based propulsion principles with the motion of rockets.
For aircraft, thrust helps explain forward motion produced by propulsion systems while lift, drag, and weight remain part of the performance picture. Examining these forces together allows physicists to analyze how propulsion contributes to aircraft motion instead of considering forward travel in isolation. This approach is useful for interpreting aircraft propulsion and overall performance.
Marine vehicles provide another application because water can be the material pushed backward by a propeller or other propulsion system. The resulting analysis uses the same momentum and reaction principles while adapting the propulsion context to travel through water. Comparing thrust with the other forces acting on the vehicle helps evaluate marine motion and performance.