Glossary

Degrees of freedom refer to the different types of movements that can be allowed or prevented in a system of mutually movable parts.

• Question: How many degrees of freedom does a body in free space have?
  • Answer: A body in free space has six degrees of freedom, which relate to the various possible movements in forward and backward, upward and downward, left and right, as well as the rotational axes of yaw, pitch, and roll.

• Question: What is the significance of degrees of freedom in rolling bearings?
  • Answer: Rolling bearings can accommodate forces or moments in five degrees of freedom, with some directions being better supported than others. In rotational movements, only one degree of freedom is truly free, while in spherical bearings all rotational movements are free.

• Question: What does static determinacy mean in relation to technical systems?
  • Answer: Static determinacy refers to how correctly a system is supported. If a system is statically underdetermined, it can move in unwanted directions. In the case of static overdeterminacy, internal stresses can occur.

• Question: Why is static determinacy important for the optimal function of technical systems?
  • Answer: For technical systems to function optimally, they must be correctly supported. Static determinacy ensures that a system operates stably and without unwanted movements.