Abstract: A system for performing hardware-in-the-loop test of a turbine governor. The system includes a hydropower plant simulation subsystem and a signal interface. The hydropower plant simulation subsystem allows for simulating dynamic and kinematic behaviors of components of a hydropower plant. The hydropower plant simulation subsystem includes a memory having processor-readable instructions stored therein and a processor that accesses the memory and executes the processor-readable instructions, which, when executed by the processor configure the processor to perform a method. The method includes generating a plurality of output signals by solving mathematical models of the components of the hydropower plant for a plurality of inputs. The signal interface allows for communicating the plurality of output signals from the hydropower plant simulation subsystem to the turbine governor.

Abstract: A pilot operated hydraulic directional control valve. The hydraulic directional control valve comprises a valve body, a spool, a spring and a control piston. The valve body comprises four top ports and four bottom ports. When a spring force which is applied to a first end of the spool is less than a piston force which is applied to a second end of the spool, the hydraulic directional control valve is in working position. When the spring force is greater than the piston force, the hydraulic directional control valve is in shutdown position.

Abstract: A system for calibrating the trip speed of a mechanical overspeed sensing device by manipulating the compression of a spring of the overspeed sensing device. The system may include a rotatable annular mount, on which the mechanical overspeed sensing device is mounted and a trip sensor. The system may drive a rotational movement of the annular mount with a varying speed over time during a test run. The system may designate a rotational speed of the annular device at which the trip sensor is struck by the mechanical overspeed sensing device as a measure trip speed. The measured trip speeds may be determined for various compressions of the spring of an exemplary mechanical overspeed sensing device and based on a desired tripping speed received from a user, a compression value of the spring may be selected for which the closest measured tripping speed to the desired tripping speed is obtained.

Abstract: A system for transporting equipment and individuals within a conduit and/or a pipeline. The system includes a ground floor, a first floor, a connecting rod, an ovality compensation mechanism, a couple of holding arms at a top end of the system, and a winch. The ground floor and the first floor are configured to receive and keep an operator onto them. The ovality compensation mechanism is attached to a lower side of the first floor by utilizing a couple of connecting chains. The ovality compensation mechanism is configured to increase a diameter of a pipe segment of the pipeline.

Abstract: Disclosed herein is an axial flux motor. The axial flux motor includes a rotating shaft, a rotor assembly, and a stator assembly. The rotor assembly includes a rotor disc, a plurality of rotor disc teeth provided on a first side of the rotor disc, and a cage. The stator assembly includes a stator base, a plurality of electromagnet assemblies, a supporting plate, and a bearing housing. An electromagnet assembly from the plurality of electromagnet assemblies comprising a core, a first fixture, a second fixture, a coil winding, and a couple of connecting screws. The yoke is configured to be secured between the first fixture and the second fixture.

Abstract: A method for changing acoustics of a performance space may include mounting a plurality of panel assemblies to a ceiling or a portion of a ceiling of the performance space. Each panel assembly of the plurality of panel assemblies may include one or more acoustic panels. The exemplary method may further include changing a distance of the one or more acoustic panels of each panel assembly of the plurality of panel assemblies from the ceiling by coupling the one or more acoustic panels of each panel assembly of the plurality of panel assemblies with a first actuating mechanism, and actuating a linear vertical movement of the one or more acoustic panels of each panel assembly of the plurality of panel assemblies along a first axis perpendicular to the ceiling utilizing the first actuating mechanism.

Abstract: A method for installing pipeline segments within a conduit. The method includes a step of securing a first pipe segment of the pipeline segments at a top end of the conduit, a step of aligning a main axis of a second pipe segment of the pipeline segments with the main axis of the pipeline, a step of lifting the second pipe segment from a first position associated with a bottom end of the conduit to a second position adjacent to the first pipe segment, a step of abutting a top rim of the second pipe segment against a bottom rim of the first pipe segment, and a step of attaching the top rim of the second pipe segment to the bottom rim of the first pipe segment.

Abstract: A method for installing pipeline segments within a conduit. The method includes a step of securing a first pipe segment of the pipeline segments at a top end of the conduit, a step of aligning a main axis of a second pipe segment of the pipeline segments with the main axis of the pipeline, a step of lifting the second pipe segment from a first position associated with a bottom end of the conduit to a second position adjacent to the first pipe segment, a step of abutting a top rim of the second pipe segment against a bottom rim of the first pipe segment, and a step of attaching the top rim of the second pipe segment to the bottom rim of the first pipe segment.

Abstract: A method for installing pipeline segments within a conduit. The method includes a step of securing a first pipe segment of the pipeline segments at a top end of the conduit, a step of aligning a main axis of a second pipe segment of the pipeline segments with the main axis of the pipeline, a step of lifting the second pipe segment from a first position associated with a bottom end of the conduit to a second position adjacent to the first pipe segment, a step of abutting a top rim of the second pipe segment against a bottom rim of the first pipe segment, and a step of attaching the top rim of the second pipe segment to the bottom rim of the first pipe segment.

Abstract: A system for rotating a vessel may include a container assembly, a linear actuating mechanism, and a double-pivot link. An exemplary container assembly may include a head end frame that may be spaced apart from and interconnected with a tail end frame. An exemplary container assembly may hold the vessel or a portion of the vessel. An exemplary linear actuating mechanism may be coupled to a bottom edge of the tail end frame and may drive a translational movement of the bottom edge of the tail end frame along a first axis. An exemplary double-pivot link may be pivotally connected between a top edge of the head end frame and a fixed revolute joint. An exemplary double-pivot link may rotate the top edge about the fixed revolute joint responsive to the translational movement of the bottom edge of the tail end frame along the first axis.

Abstract: A system for rotating a vessel may include a container assembly. An exemplary container assembly may include a head end frame that may be spaced apart from and interconnected with a tail end frame. An exemplary container assembly may be configured to encompass and hold the vessel or a portion of the vessel. An exemplary system for rotating a vessel may further include a linear actuating mechanism that may be coupled to a bottom edge of the tail end frame. An exemplary linear actuating mechanism may be configured to drive a translational movement of the bottom edge of the tail end frame along a first axis. An exemplary system for rotating a vessel may further include a double-pivot link that may be pivotally connected between a top edge of the head end frame and a fixed revolute joint. An exemplary double-pivot link may be configured to rotate the top edge about the fixed revolute joint responsive to the translational movement of the bottom edge of the tail end frame along the first axis.

Abstract: A method for installing pipeline segments within a conduit. The method includes a step of securing a first pipe segment of the pipeline segments at a top end of the conduit, a step of aligning a main axis of a second pipe segment of the pipeline segments with the main axis of the pipeline, a step of lifting the second pipe segment from a first position associated with a bottom end of the conduit to a second position adjacent to the first pipe segment, a step of abutting a top rim of the second pipe segment against a bottom rim of the first pipe segment, and a step of attaching the top rim of the second pipe segment to the bottom rim of the first pipe segment.

Abstract: A method for changing acoustics of a performance space may include mounting a plurality of panel assemblies to a ceiling or a portion of a ceiling of the performance space. Each panel assembly of the plurality of panel assemblies may include one or more acoustic panels. The exemplary method may further include changing a distance of the one or more acoustic panels of each panel assembly of the plurality of panel assemblies from the ceiling by coupling the one or more acoustic panels of each panel assembly of the plurality of panel assemblies with a first actuating mechanism, and actuating a linear vertical movement of the one or more acoustic panels of each panel assembly of the plurality of panel assemblies along a first axis perpendicular to the ceiling utilizing the first actuating mechanism.