Coordinate System

词汇表条目

000041

RFEM RSTAB
A coordinate system (CS) is a reference system for an explicit definition of objects in geometric space.

It always has a coordinate origin. Based on this, it is possible to precisely localize the objects in space according to the type of the coordinate system.

Types of Coordinate System in RFEM and RSTAB
  • Cartesian (X, Y, Z): The most common CS. It is defined by three orthogonal axes that are perpendicular to each other. X, Y, Z are always the translational expansions.
  • X-cylindrical (X, R, φ): In this case, you can imagine a cylinder where the height of the axis corresponds to X. The points on the cylinder are determined by the height (X‑coordinate), the radius of the cylinder (R), and the angle (φ).
  • Y-cylindrical (R, Y, φ): similar to X-cylindrical.
  • Z-cylindrical (R, φ, Z): similar to X-cylindrical.
  • Polar (R, φ, θ): This is a spherical CS, where the node position is described by the distance to the origin (R) and the angles φ and θ.

Furthermore, there is a distinction between a global and local coordinate system. The systems described above define a global CS. Local coordinate systems are usually object-specific. In contrast to the global CS, they are marked with small letters.

关键词

cartesian x-cylindrical polar local global

链接

RFEM 主程序 RFEM
RFEM 5.xx

主程序

结构设计与有限元­分析软件(FEA)可以用于建立 平面与空间结构模型,适用于由杆件、面、 板、墙、折板、膜、壳、实体以及接触单元等的建模与分析计算。

首个许可价格
3,540.00 USD
RSTAB 主程序
RSTAB 8.xx

主程序

空间结构设计与分析软件,主要用于框架、梁与桁架等空间结构的建模与计算。可以输出内力、变形与制作反力的线性与非线性的计算结果。

首个许可价格
2,550.00 USD