Page 11 - Mechanical Engineer's Data Handbook
P. 11

X                                                   MECHANICAL ENGINEER’S DATA  HANDBOOK

             T        Time; temperature;  torque; tension;        Angle; coefficient of  linear expansion;
                      thrust; number of gear teeth                angular acceleration; thermal diffusivity  ;
             TS       Tensile strength                            Resistance temperature coefficient
             U        Velocity; specific strain energy; specific   Angle; coefficient of superficial expansion
                      internal energy                             Angle; coefficient of  volumetric
             U        Internal energy; strain energy; overall     expansion; ratio of  specific heats
                      heat transfer coefficient                   Angle
             UTS      Ultimate tensile stress                     Permittivity
             U        Velocity; specific volume                   Efficiency
             V        Velocity; voltage, volume                   Angle; temperature
             VR       Velocity ratio                              Wavelength
             W        Weight; weight per unit length              Absolute viscosity; coefficient of  friction
             W        Weight; load; work; power (watts)           Poisson’s ratio; kinematic viscosity
             X        Distance (along beam); dryness fraction     Density; resistivity; velocity ratio
             X        Parameter  (fluid machines)                 Resistivity
             Y        Deflection                                  Stress; Stefan-Boltzmann  constant
             YP       Yield  point                                Shear stress
             YS       Yield stress                                Friction angle; phase angle; shear strain;
             Z        Bending modulus; impedance; number of       pressure angle of  gear tooth
                      Polar modulus                               Angular velocity
             ZP
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