Basic Calculations: Difference between revisions

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#Tolerancing requirements
#Tolerancing requirements
#Weight and center of gravity calculations
#Weight and center of gravity calculations
#Range of motion
#Hydraulic fluid flow and pressure
#Hydraulic fluid flow and pressure
#CAE analysis for structural failure, fatigue, deformation, crash testing, abrasion, thermal properties, and others
#CAE analysis for structural failure, fatigue, deformation, crash testing, abrasion, thermal properties, and others

Revision as of 22:58, 13 September 2013

Scaling Calculations are calculations that also consider scalability. These calculations include all relevant physical, mechanical, fluid, electrical, chemical, thermal, static, dynamic, aerodynamic, acoustic, optical, hydrological, nuclear, structural, and other properties that allow a machine to be effective for a particular purpose. Scalability is emphasized because a single design should be adaptable to different scales of operation via Intensive and Extensive Scalability. Calculations include both parameters and calculations based on these parameters.

The typical calculations for consideration are:

  1. Weight
  2. Cost
  3. Range of motion
  4. Expected lifetime
  5. Basics Statics calculations according to Basic Statics Calculations Procedure
  6. Expected maintenance cost according to Maintenance Cost Template
  7. Performance/power/speed/lifetime/lift/etc.
  8. Precision calculations - what precision of motion is achieved in devices
  9. Tolerancing requirements
  10. Weight and center of gravity calculations
  11. Hydraulic fluid flow and pressure
  12. CAE analysis for structural failure, fatigue, deformation, crash testing, abrasion, thermal properties, and others
  13. Basic static loads analysis of mechanical devices
  14. Rotation speeds
  15. Bending forces
  16. Shear strength limits
  17. Thermal losses
  18. Geometrical optics
  19. Torque calculations
  20. Rotational inertia
  21. Basic force calculations
  22. EMF calculations
  23. Thermal mass calculations
  24. Combustion calculations
  25. Embodied energy calculations
  26. etc.

These calculations should be performed for all critical components of machines, even though the aim is not Value Engineering. In the case over-building of components for purposes of lifetime design, calculations are relevant for providing accurate assessment of safety factors and performance expectations independent of empirical performance data.

A list of desired calculations or data points should be produced for each machine. Note: a spreadsheet or education page should be included to give a crash course on each calculation for the benefit of a novice who has a working knowledge of secondary-level

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