Mechanical system for a turbine engine, turbine engine, and method for attaching a mechanical system within a turbine engine

A mechanical system for a turbomachine, comprising:

• a turbomachine part to be attached;
• and
• a plurality of threaded attachment elements mounted on the turbomachine part to be attached in sequence along a line, wherein
• the threaded attachment elements are adapted to fix the turbomachine part to be attached in the turbomachine and each of the threaded attachment elements having a thread axis,
• all of the threaded attachment elements, called self-locking threaded attachment elements, are arranged so as to be prevented from rotating by mutual cooperation about corresponding thread axes thereof, by means of a rotation prevention system provided on each of the self-locking threaded attachment elements,
• the self-locking threaded attachment elements cooperate in pairs, each pair including two directly consecutive self-locking threaded attachment elements along the line, and
• for each of the pairs, a distance between the thread axes of the two self-locking threaded attachment elements of the pair is less than distances between the thread axis of each of the two self-locking threaded attachment elements of the pair and the thread axes of the two attachment elements directly consecutive to the pair along the line,
• the distance between the thread axes of the two self-locking threaded attachment elements in a pair is approximately the same for each pair and is equal to a distance d1, and
• the distance between the thread axes of two consecutive self-locking threaded attachment elements in different pairs being equal to a distance d2 greater than the distance d1.