Find the right engineering domain before choosing a calculation.

Units, statics, mechanics of materials and engineering fundamentals.

Shafts, joints, component sizing and mechanical design checks.

Ratios, tooth geometry, loads, efficiency and gear-train design.

Bearing selection, life, lubrication and load analysis.

Helical, leaf and torsion spring geometry, stress and rate.

Preload, joint strength, thread engagement and bolted-joint design.

Weld sizing, weld groups and static or fatigue loading.

Pressure containment, piping geometry and flow support calculations.

Bending, shear, deflection, section properties and structural response.

Fatigue criteria, stress concentration and failure theories.

Flow, pressure loss, velocity, head and hydraulic behavior.

Pump power, system curves, operating points and pump selection.

Torque, speed, motor sizing and power-flow calculations.

Conduction, convection, radiation and heat-exchanger calculations.

Energy balance, properties, cycles and state-change calculations.

Cooling loads, psychrometrics, air systems and refrigeration cycles.

Cutting speed, feeds, power, material removal and tool-life estimates.

Bend allowance, flat pattern, forming and press-brake calculations.

Fabrication mass, weld processes, layouts and workshop estimates.

Unit conversion, mass estimates, rates and manufacturing cost drivers.