Engine mount system and elements for reduced force transmission and reduced static motion and associated methods

A method of reacting loads from an engine of an aircraft to an aircraft structure, the method comprising:

• providing a mounting device comprising at least an upper link, which comprises at least one lug, and a housing, which has a center structure comprising at least one compression stop, which carries loads in compression, and at least one tension stop, which carries loads in tension;
• interlocking the at least one lug within the center structure of the housing;
• coupling the upper link to the housing using a flexing element, which is in contact with the housing in a fluid-tight manner;
• applying, using the flexing element, a pre-load force to the upper link to bias the at least one lug against and in contact with either the at least one compression stop or the at least one tension stop;
• attaching the engine of the aircraft to an upper bearing surface of the upper link or a lower bearing surface of the housing;
• and
• transmitting a load from the engine to whichever of the upper bearing surface and the lower bearing surface the engine is attached;
• wherein, when the load from the engine is greater than the pre-load force, the upper link is movable relative to the housing along a longitudinal axis of the mounting device, a distance over which the upper link is movable relative to the housing being defined by a distance between surfaces where the at least one lug can contact the at least one compression stop and the at least one tension stop.

A method for limiting the deflection of an engine mechanically connected to an aircraft structure of an aircraft, the method comprising:

• providing a mounting device comprising:
• an upper link comprising at least one lug and an upper bearing surface disposed along a longitudinal axis of the mounting device, wherein loading occurs along the longitudinal axis of the mounting device;
• and
• a housing comprising:
• a lower bearing surface disposed along the longitudinal axis of the mounting device;
• and
• a center structure comprising at least one compression stop, which carries loads in compression, and at least one tension stop, which carries loads in tension, the center structure being centrally disposed relative to the longitudinal axis;
• wherein the upper link is configured to interlock within the center structure;
• and
• reacting an operational load from the engine (4) with the mounting device.