Aeromechanics

Aeromechanics studies the forces, motion, and structural behavior of aircraft and other bodies moving through air, including interactions between airflow and flexible structures.

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Aerodynamics: The study of air motion and the forces air exerts on moving bodies. Aerodynamic pressure and shear create the loads that aeromechanics analyzes.
Fluid mechanics: The study of fluids at rest and in motion, including gases and liquids. Airflow around a vehicle follows the governing principles of fluid motion.
Aircraft design: The process of defining and engineering an aircraft to meet performance, safety, and operational requirements. Aeromechanical predictions guide the sizing of lifting surfaces, structures, and control systems.
Astrodynamics: The study of the motion of spacecraft and other bodies under gravitational forces. It focuses on motion beyond the atmosphere, unlike aeromechanics’ concern with airloads.
Flight dynamics: The study of an aircraft’s motion and stability under forces and control inputs. It describes how aerodynamic and propulsive forces change an aircraft’s trajectory and attitude.
Newton's laws of motion: Three principles relating an object's motion to the forces acting on it. They connect aerodynamic loads to aircraft acceleration and rotation.
Helicopter aerodynamics: The study of airflow and forces around helicopter rotors and airframes. Rotor motion creates distinctive unsteady loads and coupled vehicle responses.
Aerospace engineering: The engineering discipline concerned with vehicles that operate in Earth's atmosphere and in space. Aeromechanics is a focused area within this broader vehicle-engineering discipline.
Aeroelasticity: The interaction of aerodynamic forces with elastic deformation and vibration in a structure. It captures how airloads deform aircraft structures and how deformation changes those loads.
Stress (mechanics): Internal force per unit area within a material or structure. Aerodynamic loads produce stresses that constrain safe aircraft design.