MP-AI-20/mechanical-engineering-skills - Seite 5

design-checklist

Pre-design and design review checklists by component type — shaft, gear, weld, pressure vessel, structural, fatigue-critical parts. DFMEA prompts and design gate criteria.

Quellsprache: Englisch

design-code-lookup

Engineering code and standard lookup — AISC, ASME BPVC, AWS D1.1, ASCE 7, ASTM, API, ISO, NFPA. Key clauses, section numbers, and their design provisions.

Quellsprache: Englisch

design-for-assembly

Design for assembly (DFA) — Boothroyd-Dewhurst methodology, assembly efficiency index, part count reduction, poka-yoke, snap fits, Taguchi, DFMA, robotic assembly guidelines, SAE/IEEE standards.

Quellsprache: Englisch

design-for-cost

Design for cost (DFC) — target costing, cost drivers, material cost index, value engineering, activity-based costing, Rough Order of Magnitude estimation, should-cost analysis, teardown benchmarking.

Quellsprache: Englisch

design-for-manufacturing

Design for manufacturing (DFM) — machinability, casting draft, tolerances, surface finish, weld access, injection mold design, DFM guidelines, feature standardization, SAE, ISO GPS, ASME Y14.5 relationship.

Quellsprache: Englisch

design-for-reliability

Design for reliability (DFR) — FMEA, fault tree analysis, MTBF, Weibull analysis, reliability block diagram, derating, reliability growth (Duane), ALT, MIL-HDBK-217, IEC 61709 prediction standards.

Quellsprache: Englisch

die-casting

Die casting — cold/hot chamber, shot parameters, injection velocity, intensification pressure, solidification, porosity defects, aluminum/zinc/magnesium alloys, die life, ASTM B85/B86, tolerance capabilities.

Quellsprache: Englisch

die-design

Die design — progressive stamping die, compound die, blanking/piercing clearance, bending springback, draw die design, tonnage calculation, tool steel selection, die life, ASTM A681/D2 tool steel standards.

Quellsprache: Englisch

diffuser-design

Diffuser design — static pressure recovery coefficient Cp, conical/planar/annular diffusers, area ratio, divergence angle, stall limits (Sovran-Klomp), performance charts, separation, turbomachinery diffusers, AMCA standards.

Quellsprache: Englisch

digital-control

Digital control systems — Z-transform, sampling theorem, discretization (ZOH, Tustin), PID digital implementation, anti-windup, state-space design, pole placement, LQR, deadbeat control, stability margins.

Quellsprache: Englisch

digital-image-correlation

Digital Image Correlation (DIC) — subset correlation, displacement field, full-field strain measurement, speckle pattern, camera calibration, stereo-DIC, error sources, ASTM E2208, structural testing applications.

Quellsprache: Englisch

digital-twin

Digital twin framework — physics models, data assimilation, Kalman filter, uncertainty quantification, model updating, predictive maintenance, ISO 23247, aerospace/industrial applications.

Quellsprache: Englisch

dimensional-analysis

Dimensional analysis — Buckingham Pi theorem, dimensional homogeneity, similarity laws, scaling, key dimensionless groups (Re, Fr, Nu, Bi, We, Ma, St, Eu), model testing.

Quellsprache: Englisch

disc-brake

Disc brake design — contact pressure distribution, braking torque, thermal analysis (rotor temperature rise), fade, FMVSS 135, pad material selection, caliper design, NVH (squeal), duty cycle, ventilated rotor.

Quellsprache: Englisch

distillation-column

Distillation column design — McCabe-Thiele, Fenske-Underwood-Gilliland, tray efficiency, reflux ratio, packing HETP, binary/multicomponent VLE, reboiler/condenser duties, ASME, AIChE correlations.

Quellsprache: Englisch

distortion-heat-treatment

Distortion from heat treatment — quench distortion mechanisms, thermal and transformation stresses, residual stress, straightening, case hardening distortion, AMS 2759, ASTM A255, prediction and mitigation strategies.

Quellsprache: Englisch

drilling-operations

Drilling operations — twist drill geometry, cutting speeds, feeds, thrust force, torque, drill life, point angles, reaming, boring, deep hole drilling, GD&T hole tolerances.

Quellsprache: Englisch

dry-lubrication

Dry lubrication — solid lubricants (MoS2, PTFE, graphite, WS2, h-BN), coating methods, friction coefficient, PV limit, wear rate, DLC coatings, space/vacuum applications, ASTM G99/G77, tribological testing.

Quellsprache: Englisch

dryer-design

Dryer design — psychrometrics, drying rate (constant/falling rate periods), characteristic drying curve, spray dryer, fluidized bed, rotary drum, flash dryer, heat and mass balance, moisture content.

Quellsprache: Englisch

eccentric-bolt-group

Eccentric bolt group analysis — in-plane shear + moment, instantaneous center of rotation, elastic method, AISC plastic (ultimate strength) method, prying action, high-strength bolt groups, AISC design tables.

Quellsprache: Englisch

eddy-current-testing

Eddy current testing (ECT) — electromagnetic induction fundamentals, Lenz's law, skin depth and frequency selection, absolute vs differential probe configurations, impedance plane analysis, lift-off effect, phase angle analysis, coil design (surface,…

Quellsprache: Englisch

edm-machining

EDM (Electrical Discharge Machining) — sinker/wire EDM, material removal rate, surface roughness, recast layer, electrode design, dielectric fluid, accuracy, hard material machining, ASTM standards.

Quellsprache: Englisch

elastic-stability

Elastic stability beyond columns — shell buckling, lateral-torsional buckling of beams, torsional-flexural buckling, combined loading interaction, imperfection sensitivity, AISC/AISI/Eurocode.

Quellsprache: Englisch

elastomer-design

Elastomer design — rubber compound selection (NBR/EPDM/FKM/Silicone/HNBR), shore hardness, modulus-hardness correlation, Mooney-Rivlin hyperelastic model, fatigue, compression set, ASTM D412/D624.

Quellsprache: Englisch

electrical-field-issues

Electrical field troubleshooting for mechanical engineers — motor failures (insulation breakdown, bearing currents from VFD, motor overheating, phase imbalance, single phasing), VFD issues (harmonics, dV/dt voltage spikes, common-mode voltage, EMC), power…

Quellsprache: Englisch

electro-hydraulic

Electro-hydraulic systems — servo valves, proportional valves, hydraulic servo loops, dynamic response, valve frequency response, electrohydraulic actuator (EHA), flight control, ISO 10770, MIL-H-5440.

Quellsprache: Englisch

electrochemical-machining

Electrochemical machining (ECM) — Faraday's law of electrolysis (material removal rate), electrode gap control, electrolyte selection (NaCl, NaNO3), frontal and side gap, dimensional accuracy and overcut, electrochemical drilling (STEM, shaped tube), wire…

Quellsprache: Englisch

electromagnetic-forming

Electromagnetic forming (EMF) — Lorentz force mechanism, coil inductance and discharge circuit (RLC), pressure pulse calculation, workpiece velocity and strain rate, tube compression and expansion, sheet forming, weld-free joining, formability enhancement at…

Quellsprache: Englisch

electron-beam-welding

Electron beam welding (EBW) — vacuum process, weld parameters (beam current, voltage, focus, travel speed), aspect ratio, keyhole, distortion, EBW vs. laser, ASTM E1417, aerospace/medical applications.

Quellsprache: Englisch

electronics-cooling

Electronics cooling — junction temperature, thermal resistance network, TIM selection, heat sink design, cold plates, thermoelectric coolers, forced air cooling, two-phase cooling.

Quellsprache: Englisch

electroplating

Electroplating — Faraday's law, plating rate, current efficiency, hull cell, coating thickness, hardness, adhesion, chromium/nickel/gold/zinc plating, ASTM B633/B456, hydrogen embrittlement risk, post-bake.

Quellsprache: Englisch

electrostatic-precipitator

Electrostatic precipitator (ESP) — Deutsch-Anderson equation, collection efficiency, specific collecting area, corona discharge, resistivity effects, rapping, gas flow, NFPA 496, EPA AP-42, industrial stack emission control.

Quellsprache: Englisch

emission-control

Emission control — NOx (SCR, EGR, LNT), particulate matter (DPF, GPF), CO/HC (TWC, DOC), evaporative emissions (EVAP), Euro 6/EPA Tier standards, OBD, on-board diagnostics, emissions certification testing.

Quellsprache: Englisch

energy-methods

Energy methods in structural analysis — strain energy, Castigliano's theorems, virtual work, unit load method, complementary energy, deflection of beams/frames/trusses.

Quellsprache: Englisch

engine-breathing

Engine breathing — volumetric efficiency, valve timing, cam profiles, intake manifold tuning, variable valve timing (VVT/VVL), scavenging 2-stroke, port flow coefficients.

Quellsprache: Englisch

engine-cooling-system

Internal combustion engine cooling system design — heat rejection, coolant flow, radiator sizing (NTU-effectiveness), thermostat, water pump, fan, pressure cap, EGR cooler.

Quellsprache: Englisch

engine-design

Engine design — thermodynamic cycles (Otto, Diesel, Atkinson), BMEP, BSFC, volumetric efficiency, bore-stroke ratio, valve timing, combustion analysis, turbocharging, friction estimation, SAE J1349/ISO 1585.

Quellsprache: Englisch

environmental-testing

Environmental testing — MIL-STD-810H (vibration, shock, thermal, humidity), DO-160, HALT/HASS, salt spray (ASTM B117), thermal cycling, HALT procedures, failure analysis.

Quellsprache: Englisch

equipment-foundation

Equipment foundation design — dynamic loads, natural frequency, ACI 351.3R, frequency ratio, vibration isolation, soil-structure interaction, resonance margin, rigid vs. flexible block, rotating machinery mounts.

Quellsprache: Englisch

ergonomics-human-factors

Ergonomics and human factors engineering — anthropometry (5th/50th/95th percentile, reach envelope), workstation design (adjustable height, monitor distance, chair parameters), RULA and REBA posture assessment tools, manual handling (NIOSH lifting equation,…

Quellsprache: Englisch