Mechanical systems can kill or maim if mishandled. Never skip:
To master the basics, one must understand several core technical areas and practical skills. Core Technical Disciplines basic mechanical engineering knowledge
| Component | Function | Common failure mode | |-----------|----------|----------------------| | (bolts, screws) | Hold parts together | Loosening due to vibration | | Bearings (ball, roller, sleeve) | Reduce friction between rotating parts | Fatigue, overheating | | Gears (spur, helical, bevel) | Transmit torque and change speed/direction | Tooth wear or breakage | | Shafts & Couplings | Transmit rotary power | Torsional fatigue | | Seals & Gaskets | Prevent fluid leakage | Extrusion, chemical degradation | | Springs | Store mechanical energy | Permanent set (creep) | | Belts & Chains | Transmit power over distance | Slippage (belts), elongation (chains) | Mechanical systems can kill or maim if mishandled
Designing a part is useless if it snaps under pressure. This field, often called "Mechanics of Materials," teaches engineers how to predict failure. This field, often called "Mechanics of Materials," teaches
Materials obey Hooke’s Law up to a certain point. If you pull on a steel bar, it stretches. If you let go, it snaps back. Young’s Modulus measures this stiffness.