| Zusammenfassung |
The quantities force F and moment M are vectors and as such are determined not only by a numerical value (scalar) and a unit, but also always by a direction in space or in the plane and a corresponding sense of direction, for example tensile or compressive force, clockwise or anti-clockwise torque. To describe a vector, one can draw on its magnitude and, for instance, via suitably defined angles, on its direction with regard to a given coordinate system. Another approach would be to separate the vector into individual elements, so-called components, which contain the "proportion" of the vector along the coordinate axes. In the case of movements, one speaks, for instance, of longitudinal and transverse motion with regard to a defined direction, in the case of forces, of axial and transverse force. The separation of the vector is carried out by determining its projections on the coordinate axes. The values of the components thus found are scalars. As a group they clearly describe the vector, i.e., in the plane, two values, and in space, three are needed for the components of the vector.
In dt. Sprache u.d.T.: Mehrkomponentenmessungen der mechanischen Größen Kraft und Moment. |
