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SkillsMP has collected 647 skills from MP-AI-20/mechanical-engineering-skills. Open a skill to review its source and details.
MP-AI-20/mechanical-engineering-skillsShowing 40 of 647 collected skills.
Ship resistance and propulsion — total resistance components (friction, wave, form, appendage, air), Froude number, Frictional resistance (ITTC-1957 Cf, form factor 1+k), wave resistance (Michell-Hogner thin ship, Kelvin wave pattern), model testing (Froude…
Ship stability — metacentric height GM (initial stability), righting lever GZ curves (large angle stability), Archimedes' principle and displacement, free surface effect (FSE), wall-sided formula, cross curves of stability, IMO intact stability criteria (IS…
Ship structures — longitudinal strength (hull girder bending), section modulus, wave bending moment, local strength, classification society rules (DNV, ABS, LR), fatigue, corrosion allowance.
Shock and impact — impact factor, strain rate effects, energy methods for impact stress, DBTT, Charpy/Izod testing, drop weight, shock spectrum, fragility.
Advanced shot peening — Almen intensity (A, N, C strips), peening coverage (Avrami equation), compressive residual stress depth profile (X-ray diffraction), peening-induced work hardening, controlled shot peening (CSP) vs. laser shock peening (LSP), peen…
Engineering signal processing — FFT, windowing, aliasing, filtering (FIR/IIR), PSD, coherence, cross-correlation, order tracking, envelope analysis, digital signal conditioning.
Silencer/muffler design — reactive (expansion chamber, Helmholtz, side-branch) and dissipative (lined duct) types, transmission loss TL, insertion loss IL, back-pressure, engine exhaust.
Silo and hopper design — Janssen wall loads, Reimbert, hopper flow modes (mass flow/funnel flow), critical outlet, arching, EN 1991-4, AS 3774, bin activators.
Six Sigma methodology — DMAIC (Define, Measure, Analyze, Improve, Control), process capability indices (Cp, Cpk, Ppk), Gage R&R measurement system analysis (% study variation, number of distinct categories), hypothesis testing (t-test, ANOVA, chi-square), DOE…
Sliding mode control (SMC) — sliding surface design (relative degree, manifold s=0), equivalent control, reaching law (constant rate, power rate, exponential), chattering reduction (boundary layer, super-twisting algorithm), higher-order SMC (HOSM), Lyapunov…
Smart composites — embedded sensors/actuators, SHM with Lamb waves, piezoelectric PZT/MFC, shape memory alloy actuation, embedded fiber optic (FBG), self-healing composites, electro-active polymers.
Snap-fit design — cantilever snap (deflection, strain, mating force), annular snap (ring snap), torsional snap, permissible strain by polymer (semi-crystalline vs. amorphous), undercut geometry, mold release requirements (draft, side actions), assembly force…
Soft tissue biomechanics — hyperelastic models (Fung exponential, Holzapfel-Gasser-Ogden anisotropic, Mooney-Rivlin), viscoelasticity (quasi-linear viscoelastic model, Prony series), failure criteria (tissue toughness, ultimate stress), tendon, ligament,…
Solar thermal systems — flat plate collector (Hottel-Whillier model, FR, UL, FRUL), evacuated tube collectors, concentrating solar power (parabolic trough, Fresnel, heliostat/tower, dish-Stirling), optical efficiency, concentration ratio, working fluids…
Solidification simulation — Stefan problem, enthalpy method, Scheil equation for microsegregation, dendrite arm spacing (PDAS/SDAS), hot tearing criterion (Rappaz-Drezet-Gremaud), shrinkage porosity (Niyama criterion), phase field modeling, CALPHAD…
Spacecraft thermal control — radiation heat balance (solar flux, albedo, Earth IR), radiator sizing (Stefan-Boltzmann), multi-layer insulation (MLI) effective emittance, heater sizing, heat pipe (variable conductance VCHP), optical properties (α/ε ratio for…
Specific impulse (Isp) calculation and optimization — thermochemical equilibrium (NASA CEA, Gordon-McBride), frozen vs. shifting equilibrium, characteristic velocity c*, thrust coefficient CF, delivered Isp vs. ideal, combustion efficiency factors (mixing,…
Spherical roller bearing (SRB) design and selection — radial and axial load capacity, dynamic load rating C, static load rating C0, equivalent dynamic load P (combined radial Fr + axial Fa), ISO 281 L10 life calculation, modified rating life Lnm (ISO…
Metal spinning and flow forming — conventional spinning (manual and CNC), shear spinning (Sine rule, wall thickness), flow forming (tube and disc), material formability (spinnability rating), roller force and power, wrinkling and cracking failure modes,…
Spray cooling heat transfer — spray impact regime (single droplet, dense spray), heat transfer coefficient correlations (Mudawar-Deiters, Rybicki-Mudawar), critical heat flux (CHF) for spray cooling, nozzle spray characteristics (flow rate, drop size, spray…
Spring buckling analysis — critical free length to diameter ratio for coil springs (Haringx vs. Euler column analogy), buckling modes (lateral, tilting), slenderness ratio L_0/D, fixed vs. pivoted end conditions, buckling in compression springs, deflection at…
Complete spring design — helical compression/tension/torsion, leaf springs, Belleville washers. Wahl factor, fatigue, buckling, natural frequency, clash allowance, material selection.
Spring fatigue design — Wahl stress correction factor, mean and alternating shear stress, Goodman-Zimmerli diagram for springs, modified Goodman for helical springs, corrected endurance limit (Zimmerli data for spring wire), set removal (presetting), shot…
Spring material selection and properties — ASTM wire grades (A228 music wire, A227 hard drawn, A232 Cr-V, A401 Cr-Si, A313 stainless, A555 phosphor bronze, B197 beryllium copper), tensile strength vs. wire diameter, shear modulus G, elastic modulus E,…
Stainless steel grades — austenitic (304/316/317), ferritic, martensitic, duplex, PH grades, mechanical properties, corrosion resistance, weldability, applications.
State-space control — pole placement, LQR optimal control, Kalman filter observer, controllability/observability, separation principle, MATLAB design, gain scheduling, LPV systems.
Statistical tolerancing — worst-case vs. RSS (root sum of squares) tolerancing, normal distribution tolerancing, process capability (Cp, Cpk), Six Sigma tolerance design, Monte Carlo simulation for tolerance stackup, assembly tolerance loops, mean shift…
Steel designation lookup — AISI/SAE system, ASTM designations, heat treatment conditions, mechanical properties, hardness-strength conversions, international equivalents.
Structural steel design — AISC 360 LRFD/ASD, member selection (W-shapes, HSS, channels), axial compression (λ, Fcr, KL/r slenderness), beam bending (Lb unbraced length, Cb, Lp, Lr, lateral-torsional buckling), combined loading (H1-1a/b interaction),…
Automotive steering system design — Ackermann geometry, steering ratio, rack-and-pinion sizing, power steering (hydraulic EPS vs. EHPS), column and intermediate shaft design, toe, caster, camber, kingpin inclination, scrub radius, steering effort (road feel),…
Stirling engine thermodynamics — Stirling cycle (isothermal expansion/compression, isochoric regeneration), ideal cycle efficiency (Carnot), Schmidt analysis (practical closed-form), regenerator effectiveness and NTU method, displacer/piston kinematics…
Atmospheric and pressure storage tank design — API 650 (vertical welded tanks), API 620 (large welded low-pressure tanks), API 653 (inspection), shell ring design (hydrostatic pressure, wind load, seismic), floating roof vs. fixed roof, vent sizing (API…
Strain gauge measurement — gauge factor, Wheatstone bridge, rosette analysis, temperature compensation, principal strains, residual stress measurement, signal conditioning.
Strain gauge rosette analysis — rectangular rosette (0-45-90°), delta rosette (0-60-120°), principal strains and stresses from rosette readings, Mohr's circle for strain, principal angle calculation, residual stress measurement (hole drilling ASTM E837),…
Stress concentration factors Kt and Kf — Peterson charts, notch sensitivity, Neuber rule for plastic correction, fatigue notch factor, common geometry tables.
Stress intensity factor (SIF) — Mode I/II/III K_I/K_II/K_III, Irwin K-G relationship, SIF for common geometries (edge crack, central crack, surface crack, corner crack), stress intensity correction factors (F-functions, finite width correction), superposition…
Complete structural analysis — bending, axial, shear, torsion, combined loading, all failure modes, factor of safety. Shigley/Hibbeler depth. Triggers when user asks about stress, strain, structural loading, or "will this break".
Structural field troubleshooting — fatigue cracking (detail categories, stress range, crack growth Paris law), anchor bolt failures (pull-out, shear, prying, inadequate embedment, ACI 318 Chapter 17), foundation problems (differential settlement, bearing…
Structural health monitoring (SHM) — damage detection methods (Lamb waves, AE, strain, modal), sensor networks, damage indices, guided wave propagation, PZT transducers, aerospace/civil SHM.
Structural testing — proof load, static load test, load application methods, strain gauge rosettes, load measurement, test-analysis correlation, qualification testing, scale models.