System and method of estimating fatigue in a lifting member
AssigneeCqms Pty Ltd
InventorsBruce Alexander Leslie, David Clinton Andrews
Life of this patent
Estimating the term…
Abstract
A system of estimating fatigue in a lifting member, the system including: a first sensor configured to measure a first load related to a ram, the ram being connected to the lifting member; and a calculating device configured to: determine an actuator load based on the first load; determine a first force based on the actuator load; estimate a unit of fatigue life based on the first force; and estimate a fraction of total fatigue life consumed for a portion of the lifting member based on the unit of fatigue life and a fatigue life adjustment value.
Claims21
A system of estimating fatigue in a lifting member, the system including:
- a first sensor configured to measure a first load related to a ram, the ram being connected to the lifting member;
- and
- a calculating device configured to:
- determine an actuator load based on the first load;
- determine a first force based on the actuator load;
- estimate a unit of fatigue life based on the first force;
- and
- estimate a fraction of total fatigue life consumed for a portion of the lifting member based on the unit of fatigue life and a fatigue life adjustment value.
A method of estimating fatigue in a lifting member, the method including the steps of:
- determining an actuator load related to a ram, the ram being associated with the lifting member;
- determining a first force based on the actuator load;
- estimating a unit of fatigue life based on the first force;
- and
- estimating a fraction of total fatigue life consumed for a portion of the lifting member based on the unit of fatigue life and a fatigue life adjustment value.
Dependencies are inferred from the claim text.