MP-AI-20/mechanical-engineering-skills - Page 4

compressor-surge

Compressor surge — surge line, Greitzer B parameter, rotating stall, anti-surge control, recycle valve, suction throttle, surge margin, API 670 vibration, active magnetic bearing damping.

computed-tomography-ndt

CT scanning for NDT — industrial CT, voxel resolution, flaw detection threshold, porosity analysis, GD&T verification, ASTM E1570/E1814, aerospace and AM applications.

condensation-film

Film condensation — Nusselt film theory, Chato correlation, condensate flooding, effect of vapor velocity, non-condensable gases, enhancement methods, tube vs. flat plate, TEMA condenser.

condenser-design

Condenser design — shell-and-tube condensers, air-cooled condensers, surface condenser (steam power), TEMA types, LMTD, subcooling, flooding limit, heat transfer coefficients, Nusselt condensation.

condition-based-maintenance

Condition-based maintenance (CBM) — RUL estimation, PdM strategies, health index, vibration trending, oil analysis, thermography, degradation models, ISO 13373/17359, decision thresholds.

conduction

Heat conduction — 1D steady/transient, composite walls, cylinders, spheres, fins/extended surfaces, thermal resistance networks, 2D conduction, shape factors.

connection-design

AISC steel connection design — bolted shear/tension, slip-critical, bearing, welded connections, moment connections, shear tabs, seated connections, LRFD/ASD.

contact-fatigue

Contact fatigue — Hertz contact, pitting life, Lundberg-Palmgren subsurface fatigue model, RCF, spalling, gear pitting, bearing life rating, surface vs. subsurface initiation, ISO 6336 pitting resistance.

contact-mechanics

Contact mechanics — Hertz contact stress/deformation for sphere, cylinder, elliptical; JKR/DMT adhesion models; rough surface contact (GW model); fretting, stick-slip zones; elastic-plastic contact.

contact-stress

Hertzian contact stress — sphere-sphere, cylinder-cylinder, sphere-flat, cylinder-flat, general elliptical. Contact pressure, contact area, subsurface shear, pitting failure, bearing/gear applications.

control-systems

Control systems — Laplace transforms, transfer functions, block diagrams, PID tuning, Bode plots, Nyquist criterion, stability margins, state-space, root locus.

control-valve-sizing

Control valve sizing — Cv/Kv calculation, choked flow, cavitation index, compressible gas flow, ISA-75.01, noise prediction, valve characteristic (linear/equal-%), inherent vs. installed characteristic.

control-valve

Control valve sizing — Cv/Kv calculation (ISA/IEC), valve types (globe, ball, butterfly, cage), trim characterization (linear, equal-%, quick-open), flashing, cavitation, noise, ANSI/ISA standards.

convection

Convection heat transfer — forced internal/external, natural convection, boundary layers, Nusselt number correlations (Dittus-Boelter, Churchill-Bernstein, etc.), boiling, condensation.

coordinate-metrology

Coordinate measuring machine (CMM) metrology — probe qualification (stylus tip radius calibration, PD and MPEE specifications per ISO 10360), Gaussian vs Chebyshev (minimax) fitting algorithms, GD&T feature measurement (flatness, circularity, cylindricity,…

corrosion-fatigue

Corrosion fatigue — synergistic interaction of cyclic stress and corrosive environment, da/dN vs. ΔK in corrosive media (corrosion-fatigue crack growth rate), S-N curves in corrosive environments (no endurance limit), anodic dissolution and hydrogen…

corrosion

Corrosion engineering — electrochemical corrosion, galvanic series, corrosion rate (mpy/mmpy), pitting, SCC, crevice, intergranular, erosion-corrosion, cathodic protection, coatings.

cost-estimation

Engineering cost estimation — analogical, parametric (CERs), bottoms-up, learning curves, DCFM, ROM vs definitive estimates, AACE classes, manufacturing cost models.

crane-design

Crane design — ASME B30 series, wire rope sizing, hook block, hoist mechanisms, duty class (CMAA spectrum), girder design, wheel loads, stability, dynamic factors, FEM group classification.

crankshaft-design

Crankshaft design — bending and torsional stress, pin/journal sizing, Goodman fatigue, counterweight, torsional vibration (critical speeds, Holzer method), material, forging vs. cast, SAE/ISO standards.

crash-analysis

Crash analysis — FMVSS, EuroNCAP/IIHS tests, energy absorption, crush zone design, deceleration pulse, HIC, thoracic criteria, LS-DYNA FEA methodology, occupant kinematics, restraint systems.

creep-relaxation

Creep and stress relaxation — Norton power law, Larson-Miller parameter, creep rupture, stress relaxation in bolts, high-temperature design, creep-fatigue interaction.

creep-testing

Creep testing — creep curves, Norton power law, Larson-Miller parameter, stress rupture, ASTM E139, turbine blade life, creep-fatigue interaction, ASME Section III NH, strain accumulation.

critical-heat-flux

Critical heat flux (CHF) — boiling crisis, DNB, Zuber correlation, Lienhard correction, DNBR for nuclear fuel, subcooled boiling CHF, flow boiling CHF, dryout, reactor safety, ASME correlations.

critical-speed

Critical speed analysis for rotating shafts — Dunkerley, Rayleigh-Ritz, Myklestad, whirl, gyroscopic effects, flexible rotor balancing criteria, API/AGMA limits.

cross-flow-hx

Cross-flow heat exchanger design — NTU-effectiveness, LMTD correction factor F, unmixed/mixed flow configurations, fin array, bank of tubes, TEMA, automotive radiator design, pressure drop.

cryogenic-insulation

Cryogenic insulation — vacuum powder, MLI (multi-layer insulation), perlite, foam, heat leak calculation, boil-off rate, LN2/LO2/LH2 storage, ASME/ISO standards, cold storage vessels.

cryogenic-piping

Cryogenic piping design — thermal contraction, Invar/stainless/copper selection, expansion loops, flexible hose, vacuum-jacketed pipe, ASME B31.3, cool-down analysis, LN2/LH2/LHe pipelines.

cryogenic-safety

Cryogenic safety — physiological hazards, oxygen deficiency, flammability (LH2/LNG), LOX compatibility, asphyxiation calculations, material embrittlement, pressure relief sizing, CGA, NFPA, OSHA requirements.

cryogenic-seals

Cryogenic seals — elastomers at low temperature, PTFE/Buna behavior, lip seals, O-rings, face seals, labyrinth seals for LN2/LH2/LHe, thermal contraction effects, cryogenic valve stem packing, ISO/ASME standards.

cryogenic-storage-tanks

Cryogenic storage tanks — double-wall vacuum vessels, flat-bottom LNG tanks, spherical LOX/LH2 tanks, ASME Section VIII, EN 13458, hold time, boil-off, inner/outer vessel design, fill ratio, earthquake loads.

cryogenic-systems

Cryogenic systems design — insulation (MLI, perlite), heat leak, materials at low temperature (austenitic SS, Al, Ti), storage tanks, pressure vessels, safety, LNG, LH₂, LN₂, LO₂.

cryogenic-valves

Cryogenic valves — extended bonnet, globe/ball/butterfly types, seat materials (PCTFE/PTFE), actuators, thermal cool-down, flow coefficient, leakage class, ISO 21011, CGA V-9, LOX clean requirements.

crystallizer-design

Crystallizer design — nucleation kinetics, crystal growth, MSMPR model, supersaturation, CSD (crystal size distribution), draft tube baffle, Oslo evaporative crystallizer, energy balance, yield, ASTM standards.

curved-beams

Curved beam stress analysis — neutral axis shift, Winkler-Bach formula, crane hooks, rings, chain links, correction factor K for curved beams.

cutting-forces

Cutting forces in machining — Merchant's circle, specific cutting energy, chip thickness ratio, orthogonal/oblique cutting, Kienzle equation, tool wear forces, FEA of machining, ASTM, ISO tool life standards.

cvd-coating

CVD coating — chemical vapor deposition for TiN/TiC/Al2O3, LPCVD/PECVD/HTCVD, deposition rate, film stress, step coverage, cutting tool coatings, wear resistance, ASTM B909, semiconductor and tooling applications.

damage-mechanics

Continuum damage mechanics (CDM) — Lemaitre damage model, effective stress, damage variable D, ductile damage, fatigue damage, coupled damage-plasticity, progressive failure, XFEM, Gurson model.

deep-drawing

Deep drawing (cup drawing) — blank size calculation, drawing ratio (LDR/DR), blank holder force, punch force prediction, ironing, earing and anisotropy (r-bar and Δr values), forming limit diagram (FLD), sheet metal formability (Erichsen test, n-value,…

deep-sea-pressure

Deep-sea pressure engineering — pressure hull design at 600+ bar (full ocean depth 11,000 m), collapse pressure prediction (von Mises, Windenburg-Trilling), acrylic viewports (ASME PVHO-1), syntactic foam buoyancy, titanium and steel sphere/cylinder design,…