Mechanical Engineering
Design and analyze machines and physical systems by connecting mechanics, thermal and fluid behavior, mechanisms, materials, manufacturing, controls, testing, reliability, and maintenance.
Mechanical systems are relationships between motion, load, energy, matter, and time.
The mechanism bench behind the page inherits Engineering’s drawing-room language, then specializes it into gears, shafts, bearings, a flywheel and crank-slider, a spring-damper, and a pump loop. One slow shaft turns the system while the drawing remains readable as a still machine study.
Study equilibrium, force systems, stress, strain, deformation, strength, stiffness, failure, beams, shafts, columns, and how loads move through solid components.
Study motion, acceleration, momentum, rotating systems, oscillation, resonance, damping, balancing, transient response, and the dynamics of coupled mechanical systems.
Study gears, linkages, cams, bearings, springs, fasteners, power transmission, kinematics, component sizing, tolerances, fatigue, safety factors, and machine architecture.
Study energy, work, heat, properties, cycles, conduction, convection, radiation, heat exchangers, engines, refrigeration, and thermal management.
Study pressure, flow, conservation laws, viscosity, boundary layers, pipes, pumps, turbines, aerodynamics, hydraulics, and the interaction between fluids and machines.
Study machining, forming, casting, joining, additive manufacturing, process capability, metrology, fixtures, tooling, quality, production systems, and design for manufacture and assembly.
Integrate mechanisms with sensors, actuators, electronics, feedback, embedded control, system identification, automation, robotics, and electromechanical design.
Study engines, turbines, compressors, power cycles, renewable systems, storage, efficiency, energy conversion, thermal-fluid infrastructure, and system-level tradeoffs.
Study friction, lubrication, wear, fatigue, failure modes, reliability, condition monitoring, maintainability, service life, inspection, root-cause analysis, and lifecycle decisions.
A constraint turns rotation into a different kind of motion.
The crank-slider keeps the old piston/flywheel identity but strips away the fake boiler model. The geometry is explicit, the units are visible, and the animation can be paused so the mechanism can be inspected at any angle.
Turn rotation into reciprocating motion.
A crank-slider is a simple mechanism found in piston machines and many other linkages. Change geometry or crank angle and watch the piston location follow from the linkage constraint.
Rigid links, fixed crank center, slider constrained horizontally, no clearance or elastic deformation. This is kinematics, not a thermodynamic engine model.
Slider-pin distance from the crank center along the axis.
Total ideal travel between dead centers, equal to 2r.
Connecting-rod angle relative to the slider axis.
Longer rods reduce angularity for the same crank radius.
Ask the machine six different questions before calling it finished.
What positions, velocities, accelerations, and constraints does the mechanism permit?
Where do forces, moments, pressure, contact, vibration, and thermal stress travel?
Where does useful work enter, transform, store, dissipate, or leave the system?
Which surfaces slide, roll, seal, fasten, transmit torque, exchange heat, or guide motion?
Can the geometry be made, measured, assembled, aligned, and controlled at realistic tolerances?
What wears, fatigues, corrodes, loosens, leaks, overheats, needs lubrication, or requires access for service?
Same engineering family, narrower physical grammar.
The borders overlap in real engineering work. The curriculum separates them so each page can teach a coherent question rather than pretending disciplines never collaborate.