MP-AI-20/mechanical-engineering-skills - 第 10 页

material-selector

Engineering material selection — steel grades, aluminum alloys, polymers, composites, ceramics. Ashby charts, property indices, failure mode matching, cost, machinability, weldability, corrosion.

原文语言：英语

material-testing

Material testing — tensile testing (ASTM E8), hardness (Brinell/Rockwell/Vickers), Charpy impact, creep testing, fracture toughness KIC, fatigue S-N curve generation, DIC.

原文语言：英语

mbse-tools

Model-Based Systems Engineering (MBSE) tools — SysML language (blocks, activity, sequence, requirements diagrams), Cameo/MagicDraw, Rhapsody, Enterprise Architect, model verification, requirement traceability, INCOSE SE handbook, NASA MBSE initiatives,…

原文语言：英语

mechanical-seal

Mechanical face seals — seal components, balance ratio, closing/opening forces, PV limit, seal selection (API 682), flush plans, dual seals, material pairs.

原文语言：英语

mechanism-design

Mechanism design — four-bar linkage, slider-crank, Grashof condition, velocity/acceleration analysis (graphical & analytical), instant center, kinematic synthesis, degrees of freedom.

原文语言：英语

mechbrain

Universal mechanical engineering knowledge chatbot — routes any ME question to the correct skill, searches the Obsidian vault for context, cites vault notes and standards, generates theory for MechCodex calculators, troubleshoots field issues, answers design…

原文语言：英语

medical-device-fatigue

Medical device fatigue design — cardiovascular implants (stents, heart valves), cyclic load environments, accelerated fatigue testing, ISO 25539/ISO 5840, Goodman mean stress correction, Haigh diagram for NiTi/CoCrMo, physio-mechanical loads (cardiac cycle,…

原文语言：英语

metal-forming

Metal forming — forming limit diagram (FLD), springback, deep drawing, rolling, extrusion, forging, sheet metal bending, blank development, press tonnage.

原文语言：英语

metamaterials-mechanical

Mechanical metamaterials — auxetic structures (negative Poisson's ratio), pentamode materials, acoustic metamaterials (locally resonant), bandgap engineering, elastic wave propagation, negative stiffness, origami/kirigami mechanisms, lattice topology (octet,…

原文语言：英语

metrology

Engineering metrology — CMM measurement, GD&T verification, measurement uncertainty (GUM), gauge R&R (MSA), calibration hierarchy, surface texture measurement, coordinate systems.

原文语言：英语

microfluidics

Microfluidics — low Reynolds number flow (Re << 1, Stokes flow), capillary number, Hele-Shaw flow, electroosmotic flow (zeta potential, Debye length), pressure-driven Poiseuille flow in microchannels, droplet microfluidics (T-junction, flow-focusing),…

原文语言：英语

milling-operations

Milling operations — peripheral and face milling, chip load, MRR, cutting forces, tool life, climb vs conventional, end mill selection, high-speed machining, chatter stability.

原文语言：英语

modal-analysis

Modal analysis — SDOF/MDOF modal parameters, mode shape visualization, FRF curve fitting, model correlation (MAC/COMAC), structural dynamic modification, experimental vs FEA correlation.

原文语言：英语

model-predictive-control

Model Predictive Control (MPC) — prediction horizon, control horizon, cost function, QP optimization, constraints handling, linear vs. nonlinear MPC, economic MPC, state estimation, offset-free MPC, MIMO applications, process control (distillation, reactor),…

原文语言：英语

monte-carlo-tolerance

Monte Carlo tolerance analysis — statistical vs. worst-case tolerancing, process capability (Cp/Cpk), GD&T tolerance stacks, simulation setup (N iterations, distributions), probability of assembly failure, RSS method, ANOVA-based sensitivity, Six Sigma…

原文语言：英语

mooring-systems

Mooring systems — catenary vs. taut-leg, chain/wire/polyester properties, stiffness, pretension, watch circle, extreme load analysis, API RP 2SK, ISO 19901-7, MODU mooring.

原文语言：英语

muffler-design

Automotive muffler design — expansion chambers, perforated tubes, fibrous packing, transmission loss, back pressure, engine noise frequencies, resonator design, dual-path mufflers, SAE J1169.

原文语言：英语

multi-objective-optimization

Multi-objective optimization — Pareto front, dominance, NSGA-II, MOEA/D, weighted sum method, epsilon-constraint, scalarization, design space exploration, surrogate models (kriging, response surface), hypervolume indicator, design of experiments (LHS, Sobol),…

原文语言：英语

multibody-dynamics

Multibody dynamics — Newton-Euler equations, Lagrangian mechanics, generalized coordinates, constraint equations, DAE systems, rigid body kinematics, MBD software (Adams, Simpack, Modelica).

原文语言：英语

multiphase-cfd

Multiphase CFD — VOF (Volume of Fluid), level set, Euler-Euler, Euler-Lagrange, bubble columns, cavitation (Schnerr-Sauer, Zwart model), droplet breakup (TAB, KH-RT), fluidized beds, drift-flux model, ANSYS Fluent/CFX setup, phase interaction forces (drag,…

原文语言：英语

multiscale-modeling

Multiscale modeling — length scales (nano to macro), molecular dynamics (LAMMPS), DFT (VASP/Quantum ESPRESSO), representative volume element (RVE), homogenization, concurrent vs. hierarchical coupling, FEA-MD coupling (Quasicontinuum), crystal plasticity…

原文语言：英语

natural-frequency

Vibration analysis — natural frequency (SDOF/MDOF), damping ratio, forced response, resonance, Dunkerley, Rayleigh-Ritz, modal analysis, transmissibility, vibration isolation.

原文语言：英语

ndt-methods

Non-Destructive Testing — UT (A/B/C-scan, PAUT, TOFD), RT, MT, PT, ET, VT, AE, thermography. Flaw detection limits, code requirements (AWS D1.1, ASME V, API 1104).

原文语言：英语

needle-bearing

Needle roller bearings — geometry (Fw, Fw/Dw ratio), load ratings (dynamic C and static C0), bearing selection (ISO 76/281), drawn cup vs. machined ring types, combined radial-axial loading, cage vs. full complement design, lubrication requirements, shaft and…

原文语言：英语

nickel-superalloys

Nickel superalloys — Inconel, Waspaloy, Hastelloy, René alloys; high-temperature properties, creep, oxidation, coating systems, gas turbine applications, processing.

原文语言：英语

nitriding

Nitriding surface hardening — gas nitriding (Lehrer diagram, Kn control), plasma/ion nitriding, nitrocarburizing, compound layer (ε/γ' phases), diffusion zone hardness profiles, case depth definitions (effective/total), AMS 2759/10, steel grade selection…

原文语言：英语

noise-barrier

Noise barriers and acoustic enclosures — transmission loss (TL), mass law, coincidence frequency, sound insertion loss (IL), barrier diffraction (Maekawa formula), OSHA noise exposure limits, ANSI S12.19, highway noise barrier design (FHWA), acoustic…

原文语言：英语

noise-vibration-harshness

NVH (Noise, Vibration, Harshness) — NVH metrics, transfer path analysis (TPA), panel contribution analysis, NVH simulation (SEA, FEA, BEM), sound quality, acoustic materials, vehicle NVH.

原文语言：英语

nonlinear-vibration

Nonlinear vibration — Duffing oscillator (hardening/softening), jump phenomena, backbone curves, multiple scales method, harmonic balance, Melnikov criterion for chaos, van der Pol oscillator, parametric excitation (Mathieu equation), nonlinear normal modes…

原文语言：英语

nozzle-design

Nozzle design — convergent-divergent (De Laval) theory, isentropic relations, area-Mach relation, design Mach number, shock in nozzle (normal shock), thrust coefficient (C_F), specific impulse (I_sp), nozzle efficiency (ηn), bell nozzle vs. conical, method of…

原文语言：英语

nuclear-codes-asme

ASME nuclear codes — Boiler and Pressure Vessel Code (BPVC) Section III (nuclear components), Class 1/2/3 classification, NB/NC/ND design rules, design by analysis (DBA), stress categories (primary/secondary/peak), fatigue evaluation (ASME III NB-3200),…

原文语言：英语

nuclear-fatigue

Nuclear fatigue — ASME Section III NB-3222.4 fatigue evaluation, design fatigue curves (air vs. water environment), environmentally-assisted fatigue (EAF) NUREG/CR-6909, cumulative usage factor (CUF), Fen correction, simplified elastic-plastic analysis (K_e),…

原文语言：英语

nuclear-materials

Nuclear materials — radiation damage (DPA, void swelling, embrittlement), reactor-grade steels (SA-508, 9Cr-1Mo), Zircaloy cladding, ASME Section III, hafnium, beryllium, tritium breeding.

原文语言：英语

nuclear-pressure-vessel

Nuclear reactor pressure vessel (RPV) — design (ASME III NB-3200), material SA-508 Gr. 3 / SA-533 Gr. B, radiation embrittlement (RT_NDT shift, RTNPTS), pressure-temperature (P-T) limits (ASME III Appendix G), surveillance capsules (10 CFR 50 App. H),…

原文语言：英语

nucleate-boiling

Nucleate boiling — pool boiling curve (Nukiyama), incipience superheat, heat transfer correlations (Rohsenow, Chen, Forster-Zuber), critical heat flux (CHF, Lienhard-Dhir correlation), flow boiling (Bergles-Rohsenow), two-phase flow regimes…

原文语言：英语

o-ring-design

O-ring seals — groove design, squeeze, stretch, compression set, material selection, static/dynamic applications, Parker handbook, pressure limits, AS568 sizes.

原文语言：英语

ocean-wave-loads

Ocean wave load analysis — linear wave theory, Morison equation, diffraction (large structures), irregular sea state (JONSWAP, Pierson-Moskowitz), response spectrum, fatigue, API RP 2A.

原文语言：英语

offshore-marine

Offshore and marine engineering — Morison equation, wave loading, API RP 2A, DNVGL, cathodic protection offshore, structural steel, fatigue in offshore, jack-up, FPSO, mooring.

原文语言：英语

open-channel

Open channel flow — Manning's equation, specific energy, critical flow, hydraulic jump, gradually varied flow, channel design, weirs, culverts.

原文语言：英语

orbital-mechanics

Orbital mechanics — Kepler's laws, vis-viva equation, orbital elements (a, e, i, Ω, ω, ν), Hohmann transfer, bi-elliptic transfer, plane change maneuvers, delta-V budget, patched-conic interplanetary trajectories, launch window, gravity assists, atmospheric…

原文语言：英语