Mechanical devices and method of creating prescribed vibration

A system for comparing a vibration profile of a mechanical device to a prescribed vibration profile for the mechanical device comprising:

• a mechanical device with at least one sensor and at least a first circular force generator (CFG) affixed thereto, the CFG configured produce the vibration profile of the mechanical device and the sensor configured to monitor the vibration profile of the mechanical device;
• a controller in electronic communication with the sensor and with the first CFG;
• at least one prescribed vibration profile stored within the controller;
• the controller configured to a signal from the sensor and configured to determine the vibration profile of the mechanical device;
• the controller configured to compare the vibration profile of the mechanical device to the prescribed vibration profile stored within the controller and to determine the difference between the prescribed vibration profile and the vibration profile of the mechanical device;
• and,
• the controller configured to change operation of the first CFG to increase or decrease the vibration profile of the mechanical device to reduce the difference between the vibration profile of the mechanical device and the prescribed vibration profile.

A method for adjusting a vibration profile of a mechanical device, comprising:

• positioning a sensor on the mechanical device;
• affixing a first circular force generator (CFG) to the mechanical device, the CFG configured to produce a rotating vector force, the rotating vector force includes a magnitude, a phase and a frequency;
• using the CFG to induce the vibration profile in the mechanical device;
• using the sensor to measure the vibration profile of the mechanical device;
• providing a controller, the controller in electronic communication with the sensor and the CFG;
• storing a prescribed vibration profile for the mechanical device within the controller;
• continuing to operate the CFG while using the controller to monitor the sensor and generate the vibration profile of the mechanical device corresponding to an operating condition of the mechanical device and CFG;
• using the controller to determine the difference between the vibration profile of the mechanical device as measured by the sensor and the prescribed vibration profile;
• and,
• using the controller to change the operation of the CFG to produce a change in at least one of the CFG's magnitude, phase or frequency thereby producing a change in the vibration profile of the mechanical device to reduce the difference between the vibration profile of the mechanical device and the prescribed vibration profile.