Pump drivetrain damper system and control systems and methods for same

A method of dampening vibrations in a pump having a crankshaft and driven by a drivetrain including a driveshaft, a transmission operably coupled to the driveshaft, and an engine operably coupled to the transmission, the method comprising:

• detecting a torque variation in the drivetrain;
• generating and transmitting a control signal to at least one electromagnet in response to detecting the torque variation in the drivetrain;
• and
• negating, using the at least one electromagnet, at least a portion of the torque variation to prevent an unacceptable generation of inertia in one or more of the driveshaft, the transmission, and the engine due to the torque variation.

A method of dampening vibrations in a reciprocating pump having a crankshaft coupled to a drivetrain and a flywheel coupled to the crank shaft, the method comprising:

• receiving, from at least one sensor, a sensor signal associated with at least one characteristics of the reciprocating pump;
• calculating, using at least one processor and in response to the sensor signal, torque characteristics of the reciprocating pump and the drivetrain;
• calculating, using at least one processor and in response to the calculated torque characteristics, a damper response voltage per degree of crank angle in the crankshaft;
• and
• generating and transmitting control signals to at least one electromagnets to apply a force to the flywheel to dampen vibrations in the reciprocating pump in response to the damper response voltage.

A reciprocating pump comprising:

• a power end having a crankshaft configured to be coupled to a drivetrain;
• a fluid end coupled to the power end and having a housing defining a fluid chamber, the fluid chamber configured to receive a magnetorheological fluid therein;
• a flywheel coupled to the crankshaft of the reciprocating pump;
• at least one sensor coupled to the reciprocating pump and configured to sense at least one characteristic of the reciprocating pump;
• a plurality of magnetic devices coupled to the housing and proximate to the flywheel;
• and
• a processor in communication with the at least one sensor and at least one of the plurality of magnetic devices, the processor configured to generate and transmit a control signal to at least one of the plurality of magnetic devices causing it to generate a force on the flywheel, wherein a summation of forces applied to the flywheel by the plurality of magnetic devices operates to reduce vibration in the reciprocating pump.