you can calculate mass properties around a selected cocrdinate system. SOLIDWORKS 3D Design Forum Moment of Inertia about a Defined Axis in Assembly thread559-209818. The farther the mass is from the center of rotation, the greater the moment of inertia. Is there any way in an assembly to select the axis for the moment of inertia calculated and listed in Mass Properties. Usually the unit is Kg.m2 (kilogram meter). Integrating curvatures over beam length, the deflection, at some point along x-axis, should also be reversely proportional to I. Solidworks Moment Of Inertia Calculation In mechanics, moment of inertia or collective inertia refers to the difficulty of changing the state of motion of a rotating body. Solidworks result like this Center of mass: ( millimeters ) X -3.07 Y 2.41 Z 4. Therefore, it can be seen from the former equation, that when a certain bending moment M is applied to a beam cross-section, the developed curvature is reversely proportional to the moment of inertia I. strength, stiffness, elasticity Loading stiffness: transverse, axial, buckling Second Area Moment of Inertia - I Force and Torque, or Stress and Moments. Beam curvature κ describes the extent of flexure in the beam and can be expressed in terms of beam deflection w(x) along longitudinal beam axis x, as: \kappa = \frac. Where E is the Young's modulus, a property of the material, and κ the curvature of the beam due to the applied load. The bending moment M applied to a cross-section is related with its moment of inertia with the following equation:
The moment of inertia (second moment or area) is used in beam theory to describe the rigidity of a beam against flexure (see beam bending theory). The term second moment of area seems more accurate in this regard. 7.1.3 Using SOLIDWORKS to Calculate Moment of Inertia The procedure given above was rather lengthy and prone to error. This is different from the definition usually given in Engineering disciplines (also in this page) as a property of the area of a shape, commonly a cross-section, about the axis. It is related with the mass distribution of an object (or multiple objects) about an axis. In Physics the term moment of inertia has a different meaning.
The dimensions of moment of inertia (second moment of area) are ^4. SOLIDWORKS displays the selected notation convention next to the Moments of inertia: Taken at the output coordinate system section.
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