Mechanical Design Terms QuizVersion en ligne Common design engineering terms. par B C 1 Design review a Constraints, supports, and loads applied to a model or design for analysis. b Process of confirming that a proposed design concept can meet functional and performance needs. c Document stating detailed requirements for geometry, materials, performance, and interfaces. d Formal meeting where a design is examined to check requirements, risks, and next steps. 2 Concept validation a Process of confirming that a proposed design concept can meet functional and performance needs. b Document stating detailed requirements for geometry, materials, performance, and interfaces. c Constraints, supports, and loads applied to a model or design for analysis. d Formal meeting where a design is examined to check requirements, risks, and next steps. 3 Functional requirement a Constraints, supports, and loads applied to a model or design for analysis. b Specific description of what a part or system must do under defined conditions. c Document stating detailed requirements for geometry, materials, performance, and interfaces. d Process of confirming that a proposed design concept can meet functional and performance needs. 4 Design specification a Document stating detailed requirements for geometry, materials, performance, and interfaces. b Formal meeting where a design is examined to check requirements, risks, and next steps. c Constraints, supports, and loads applied to a model or design for analysis. d Process of confirming that a proposed design concept can meet functional and performance needs. 5 Boundary conditions a Document stating detailed requirements for geometry, materials, performance, and interfaces. b Defined combination of forces, pressures, temperatures, or motions used for evaluation. c Constraints, supports, and loads applied to a model or design for analysis. d Ratio between allowable load and expected load, providing margin against failure. 6 Load case a Defined combination of forces, pressures, temperatures, or motions used for evaluation. b Constraints, supports, and loads applied to a model or design for analysis. c Document stating detailed requirements for geometry, materials, performance, and interfaces. d Specific description of what a part or system must do under defined conditions. 7 Safety factor a Evaluation of internal forces and stresses in a component under applied loads. b Ratio between allowable load and expected load, providing margin against failure. c Constraints, supports, and loads applied to a model or design for analysis. d Document stating detailed requirements for geometry, materials, performance, and interfaces. 8 Stress analysis a Evaluation of internal forces and stresses in a component under applied loads. b Discretized representation of a part or assembly used in numerical simulations. c Defined combination of forces, pressures, temperatures, or motions used for evaluation. d Document stating detailed requirements for geometry, materials, performance, and interfaces. 9 Finite element model a Discretized representation of a part or assembly used in numerical simulations. b Defined combination of forces, pressures, temperatures, or motions used for evaluation. c Document stating detailed requirements for geometry, materials, performance, and interfaces. d Evaluation of internal forces and stresses in a component under applied loads. 10 Material selection a Choosing a material based on strength, cost, manufacturability, and environmental factors. b Constraints, supports, and loads applied to a model or design for analysis. c Ratio between allowable load and expected load, providing margin against failure. d Document stating detailed requirements for geometry, materials, performance, and interfaces. 11 Tolerance stack-up a Combined effect of individual dimensional tolerances on the overall assembly fit. b Document stating detailed requirements for geometry, materials, performance, and interfaces. c Symbolic system for defining allowable variation in size, form, orientation, and position. d Defined combination of forces, pressures, temperatures, or motions used for evaluation. 12 Geometric dimensioning and tolerancing a Combined effect of individual dimensional tolerances on the overall assembly fit. b Document stating detailed requirements for geometry, materials, performance, and interfaces. c Constraints, supports, and loads applied to a model or design for analysis. d Symbolic system for defining allowable variation in size, form, orientation, and position. 13 Datum reference frame a Documentation stating detailed requirements for geometry, materials, performance, and interfaces. b Symbolic system for defining allowable variation in size, form, orientation, and position. c Defined combination of forces, pressures, temperatures, or motions used for evaluation. d Set of reference features used as a coordinate system for measurement and tolerancing. 14 Interference fit a Fit where a consistent gap exists between mating parts under all tolerance conditions. b Defined combination of forces, pressures, temperatures, or motions used for evaluation. c Document stating detailed requirements for geometry, materials, performance, and interfaces. d Fit where mating parts overlap in size and require force or heat to assemble. 15 Clearance fit a Document stating detailed requirements for geometry, materials, performance, and interfaces. b Defined combination of forces, pressures, temperatures, or motions used for evaluation. c Fit where a consistent gap exists between mating parts under all tolerance conditions. d Fit where mating parts overlap in size and require force or heat to assemble. 16 Surface finish a Measure of surface texture quality that affects friction, sealing, and appearance. b Document stating detailed requirements for geometry, materials, performance, and interfaces. c Constraints, supports, and loads applied to a model or design for analysis. d Defined combination of forces, pressures, temperatures, or motions used for evaluation. 17 Assembly sequence a Document stating detailed requirements for geometry, materials, performance, and interfaces. b Process of confirming that a proposed design concept can meet functional and performance needs. c Defined combination of forces, pressures, temperatures, or motions used for evaluation. d Defined order of operations used to put parts together into a final product. 18 Manufacturability assessment a Evaluation of how easily and cost-effectively a design can be produced. b Document stating detailed requirements for geometry, materials, performance, and interfaces. c Defined combination of forces, pressures, temperatures, or motions used for evaluation. d Process of confirming that a proposed design concept can meet functional and performance needs. 19 Design for assembly a Process of confirming that a proposed design concept can meet functional and performance needs. b Approach that simplifies parts and interfaces to reduce assembly time and errors. c Defined combination of forces, pressures, temperatures, or motions used for evaluation. d Document stating detailed requirements for geometry, materials, performance, and interfaces. 20 Design for reliability a Document stating detailed requirements for geometry, materials, performance, and interfaces. b Defined combination of forces, pressures, temperatures, or motions used for evaluation. c Process of confirming that a proposed design concept can meet functional and performance needs. d Methodology to ensure a product performs consistently over its intended lifetime. 21 Failure mode a Defined combination of forces, pressures, temperatures, or motions used for evaluation. b Specific way in which a component or system can fail to perform its function. c Document stating detailed requirements for geometry, materials, performance, and interfaces. d Process of confirming that a proposed design concept can meet functional and performance needs. 22 Root cause analysis a Structured investigation to identify the underlying reason for a defect or failure. b Defined combination of forces, pressures, temperatures, or motions used for evaluation. c Process of confirming that a proposed design concept can meet functional and performance needs. d Document stating detailed requirements for geometry, materials, performance, and interfaces. 23 Corrective action a Design or process change implemented to eliminate the cause of an identified problem. b Defined combination of forces, pressures, temperatures, or motions used for evaluation. c Process of confirming that a proposed design concept can meet functional and performance needs. d Document stating detailed requirements for geometry, materials, performance, and interfaces. 24 Test protocol a Process of confirming that a proposed design concept can meet functional and performance needs. b Defined combination of forces, pressures, temperatures, or motions used for evaluation. c Document stating detailed requirements for geometry, materials, performance, and interfaces. d Detailed procedure describing how tests are conducted, measured, and evaluated. 25 Prototype build a Process of confirming that a proposed design concept can meet functional and performance needs. b Defined combination of forces, pressures, temperatures, or motions used for evaluation. c Initial physical realization of a design used for testing and verification. d Document stating detailed requirements for geometry, materials, performance, and interfaces. 26 Design iteration a Cycle of modifying, analyzing, and refining a design based on feedback or results. b Process of confirming that a proposed design concept can meet functional and performance needs. c Defined combination of forces, pressures, temperatures, or motions used for evaluation. d Document stating detailed requirements for geometry, materials, performance, and interfaces. 27 Design freeze a Point at which design changes are stopped to allow tooling, documentation, or release. b Document stating detailed requirements for geometry, materials, performance, and interfaces. c Process of confirming that a proposed design concept can meet functional and performance needs. d Defined combination of forces, pressures, temperatures, or motions used for evaluation. 28 Engineering change request a Document stating detailed requirements for geometry, materials, performance, and interfaces. b Process of confirming that a proposed design concept can meet functional and performance needs. c Defined combination of forces, pressures, temperatures, or motions used for evaluation. d Formal proposal to modify a released design, drawing, or specification. 29 Bill of materials a Structured list of all components, quantities, and references required for a product. b Document stating detailed requirements for geometry, materials, performance, and interfaces. c Process of confirming that a proposed design concept can meet functional and performance needs. d Defined combination of forces, pressures, temperatures, or motions used for evaluation. 30 Revision control a Defined combination of forces, pressures, temperatures, or motions used for evaluation. b System for tracking and managing changes to drawings and documents over time. c Process of confirming that a proposed design concept can meet functional and performance needs. d Document stating detailed requirements for geometry, materials, performance, and interfaces. 31 Configuration management a Defined combination of forces, pressures, temperatures, or motions used for evaluation. b Document stating detailed requirements for geometry, materials, performance, and interfaces. c Process of confirming that a proposed design concept can meet functional and performance needs. d Discipline that keeps product versions, options, and documentation consistent and traceable. 32 Interface control a Defined combination of forces, pressures, temperatures, or motions used for evaluation. b Management of mechanical and functional connections between different parts or systems. c Process of confirming that a proposed design concept can meet functional and performance needs. d Document stating detailed requirements for geometry, materials, performance, and interfaces. 33 Design baseline a Defined combination of forces, pressures, temperatures, or motions used for evaluation. b Approved reference version of a design used for comparison and control of changes. c Document stating detailed requirements for geometry, materials, performance, and interfaces. d Process of confirming that a proposed design concept can meet functional and performance needs. 34 Weight reduction a Process of confirming that a proposed design concept can meet functional and performance needs. b Targeted decrease of mass through geometry, material, or topology optimization. c Defined combination of forces, pressures, temperatures, or motions used for evaluation. d Document stating detailed requirements for geometry, materials, performance, and interfaces. 35 Stiffness requirement a Process of confirming that a proposed design concept can meet functional and performance needs. b Defined combination of forces, pressures, temperatures, or motions used for evaluation. c Document stating detailed requirements for geometry, materials, performance, and interfaces. d Specified limit on allowable deflection under load for a component or structure. 36 Thermal expansion a Defined combination of forces, pressures, temperatures, or motions used for evaluation. b Change in size of a material or part due to temperature variation. c Process of confirming that a proposed design concept can meet functional and performance needs. d Document stating detailed requirements for geometry, materials, performance, and interfaces. 37 Vibration fatigue a Process of confirming that a proposed design concept can meet functional and performance needs. b Defined combination of forces, pressures, temperatures, or motions used for evaluation. c Progressive damage caused by repeated dynamic loading or oscillation. d Document stating detailed requirements for geometry, materials, performance, and interfaces. 38 Lifecycle testing a Defined combination of forces, pressures, temperatures, or motions used for evaluation. b Testing that simulates long-term use to evaluate durability and wear. c Process of confirming that a proposed design concept can meet functional and performance needs. d Document stating detailed requirements for geometry, materials, performance, and interfaces. 39 Serviceability requirement a Process of confirming that a proposed design concept can meet functional and performance needs. b Condition that the design must allow inspection, repair, or replacement in the field. c Document stating detailed requirements for geometry, materials, performance, and interfaces. d Defined combination of forces, pressures, temperatures, or motions used for evaluation. 40 Maintenance access a Defined combination of forces, pressures, temperatures, or motions used for evaluation. b Document stating detailed requirements for geometry, materials, performance, and interfaces. c Provision of space and features so tools and hands can reach parts needing upkeep. d Process of confirming that a proposed design concept can meet functional and performance needs.
