Method and equipment for determining an estimated life and remaining useful life of a mechanical device

An equipment for determining an estimated life of a mechanical device, the equipment comprising

• a first acquisition unit for acquiring a load spectrum of the mechanical device within a predetermined time range;
• a second acquisition unit for acquiring a lubricant state of the mechanical device within the predetermined time range;
• an operating state determination unit that is connected to the first acquisition unit and the second acquisition unit and acquires the load spectrum and the lubricant state and, determines a plurality of operating states experienced by the mechanical device within the predetermined time range based on the load spectrum and the lubricant state, wherein each operating state corresponds to a particular range of load values in the load spectrum and a particular degree of contamination in the lubricant state;
• and
• an estimated life determination unit that is connected to the operating state determination unit, determines an estimated life of the mechanical device based on the plurality of operating states of the mechanical device within the predetermined time range.