A boat has a rear platform including a pivotable hatch. A marine outboard engine has a bumper connected to the engine unit housing. When mounted to the boat, the marine outboard engine is located under the hatch and is pivotable from a trim range to a tilt range. When the hatch is in a closed position and the marine outboard engine is in the tilt range, pivoting the marine outboard engine upwardly to a first engine position causes the bumper to abut a bottom surface of the hatch. Pivoting the marine outboard engine upwardly from the first engine position to a second engine position causes the bumper to push up on the bottom surface of the hatch and to slide against the bottom surface of the hatch, thereby pivoting the hatch from the closed position to an open position.

A suspension system for a vessel (1) having at least one left hull (11), at least one right hull (12) and a chassis portion (10), the suspension system including supports (20) for at least partially supporting the chassis portion relative to the left and right hulls, and a front left and back left damping ram (31, 33) connected between the chassis portion and longitudinally spaced points on the at least one left hull, a front right and back right damping ram (32, 34) connected between the chassis portion and longitudinally spaced points on the at least one right hull. The suspension system further includes a deck attitude control system (250) comprising a controller (252), sensors, and a respective actuator arrangement for each of at least two orthogonally spaced damper rams. The actuators control a position of at least one point on the chassis relative to at least one reference.

The invention provides a suspended catamaran target boat, including a deck, a suspension structure and two buoyancy units, the suspension structure is connected to upper sides of the two buoyancy units, and the deck is mounted on the suspension structure; the suspension structure includes at least two suspension assemblies including an upper base, a lower base and two support rods. The support rods are hinged between the upper base and the lower base, and the upper base, the lower base and the two support rods form a four-bar linkage mechanism, where a shock absorber and a restricting mechanism are installed between the upper base and the lower base. The deck is provided with a main controller, an acceleration sensor and a heel sensor, and the main controller is respectively electrically connected with the acceleration sensor, the heel sensor and each of the restricting mechanisms of the two suspension assemblies.

A multidimensional structures that is formed of thirty six interconnecting members in such a manner as to form eight (8) tetrahedrons and six (6) octahedrons thereby providing a structure that is both light weight and strong, the interconnecting members variously intersecting at a central point that may be formed of a single unified structure having fillets in the middle of the multidimensional structure and at twelve (12) external connecting points.

A device for connecting the elastic elements and dissipaters of variable type of a mechanical suspension interposed between two vibrating or tilting mechanical systems, the source body and the receiving body, respectively, in order to reduce the forces acting on the receiving body, and/or the displacement thereof, and/or the speed thereof, or combinations of the previous physical magnitudes and/or of any other ones, which are produced on the receiving body due to the motion or forces to which the source is subjected. The device consists of elastic elements, such as metal components or compressed gases, energy dissipating elements, either by means of friction between fluid and solid, and between solid and solid, or by means of suitable electromagnetic couplings the damping ability of which can be automatically varied by a suitable control system according to the operating conditions of the suspension; elements forming the kinematic connection structure between the elastic elements, damping elements, source and receiving bodies, such connections being solid or fluid or electromagnetic connections.

A rapid water ambulance for transport of patients, comprising a sick bay solidly constrained to a structure of the water ambulance and support apparatus (10) for a stretcher, the support apparatus (10) comprises: a support column (20), a carriage (30) slidable along the column (20) in the direction of the axis (A) thereof, a support plane (11) for a stretcher, borne projectingly by the carriage (30) and solidly constrained thereto, a damped suspension device (33), constrained to the carriage (30) and to the column (20), which supports the support plane (11) at an operating height, wherein the axis (A) of the support column (20) is inclined with respect to the perpendicular direction to a floor (P) plane of the sick bay and lies in a vertical plane parallel to the motion direction of the water ambulance.

A vessel having at least one hull, a body and a suspension system for supporting at least a portion of the body above the at least one hull is described. The suspension system includes at least one support means, and the vessel further includes at least one gyroscopic stabilizer for attenuating rotation of the body about at least one stabilizing axis.

A method for cancelling seat vibration includes receiving, from an accelerometer, a plurality of accelerometer measurements and applying a first filter to the plurality of accelerometer measurements to remove accelerometer measurements of the plurality of accelerometer measurements having a frequency above a first threshold frequency. The method also includes applying a second filter to an output of the first filter to remove accelerometer measurements of the output of the first filter having a frequency above a second threshold frequency and applying a third filter to an output of the second filter to generate an accelerometer measurement output having a center frequency corresponding to a resonant frequency of the vibration of the at least one component of the seat. The method also includes determining an absolute magnitude value of the accelerometer measurement output and selectively controlling a motor based on the absolute magnitude value of the accelerometer measurement output.

A boat includes: a hull; a float that supports the hull; a suspension that is disposed between the hull and the float and absorbs a vibration transmitted from the float to the hull; and a conversion mechanism that converts an energy generated in accordance with a relative movement of the hull and the float in a vertical direction, wherein the conversion mechanism is arranged so as to sandwich a center of gravity of the hull in a forward-rearward direction.

A computer implemented method and apparatus for a marine vessel data system, the method comprising: receiving data from at least one sensor configured to measure vibration and operationally arranged to the marine vessel to provide time-domain reference sensor data; maintaining the time-domain reference sensor data within a data storage system; generating a Fast Fourier Transform (FFT) on the time-domain reference sensor data to provide a plurality of reference spectra files in frequency-domain, wherein each reference spectra file comprises spectra data defined by amplitude information and frequency information, and each spectra file is associated with condition information determined based on collection of the time-domain reference sensor data; normalizing each reference spectra file by converting the frequency information to order information using the condition information to provide normalized reference spectra files; and training a convolutional autoencoder type of neural network using the normalized reference spectra files.