A system and various methods for determining a center of mass of an aircraft with a plurality of shock strut assemblies is illustrated. Multiple sensors, including a gas pressure sensor, and/or a position sensor, may be used to gather data and determine the center of mass of the aircraft. Various methods illustrated herein may evaluate the center of mass relative to a wheelbase axis and a wheel tread axis based on the gathered data.

A system for determining a center of gravity (COG) of a commodity of a railcar comprises a plurality of sensors and a computing device. At least a first sensor from the plurality of sensors is disposed on a first center plate of the railcar. At least a second sensor from the plurality of sensors is disposed on a second center plate of the railcar. Each sensor is configured to determine a change in force imposed on the sensor based on a change in micro strain on the sensor. The computing device receives a plurality of force values from the plurality of sensors. The computing device determines a weight of the railcar body and commodity by combining the received force values. The computing device determines the COG of the railcar body and commodity based at least on the plurality of force values and the weight of the railcar.

A method includes collecting wheel loads applied to wheels tires of the vehicle, from wheel sensor sets installed in the wheels, when the vehicle is in a steady state and when it is subjected to a movement computing, by a vehicle control unit, longitudinal and lateral positions of a center of gravity of the vehicle, based on vehicle parameters and the wheel loads when the vehicle in the steady state; measuring the movement; and computing, by the vehicle control unit, a height of the center of gravity, based on the movement, the vehicle parameters, the longitudinal or lateral position of the center of gravity and the wheel loads when the vehicle is subjected to the movement.

A method for loading one of an Unmanned Aerial Vehicle (UAV) and a container for the Unmanned Aerial Vehicle with one or more items is disclosed. The method includes determining a Center of Gravity (COG) of the one or more items. The method also includes loading the one of the UAV and the container for the UAV with the one or more items based on the COG of the one or more items. The method further includes positioning one or more weights relative to the one or more items and relative to the one of the UAV and the container for the UAV such that a combined COG of the one or more items, the one of the UAV and the container for the UAV, and the one or more weights is positioned within a predetermined region relative to the one of the UAV and the container for the UAV.

A center-of-mass height estimation device includes a roll moment calculation unit for calculating roll moment of a sprung portion in a vehicle on the basis of bearing capacities of left and right suspensions provided on the vehicle, a lateral acceleration measurement unit for measuring lateral acceleration, which is acceleration in a width direction of the vehicle, a mass measurement unit for measuring mass of the sprung portion, a transfer function calculation unit for calculating a transfer function of the roll moment with respect to the lateral acceleration, and a center-of-mass height calculation unit for dividing the gain of the transfer function by the mass of the sprung portion to calculate a height from a roll center of the vehicle to a center of mass of the sprung portion.

A center-of-mass height estimation device includes a roll moment calculation unit for calculating roll moment of a sprung portion in a vehicle on the basis of bearing capacities of left and right suspensions provided on the vehicle, a lateral acceleration measurement unit for measuring lateral acceleration, which is acceleration in a width direction of the vehicle, a mass measurement unit for measuring mass of the sprung portion, a transfer function calculation unit for calculating a transfer function of the roll moment with respect to the lateral acceleration, and a center-of-mass height calculation unit for dividing the gain of the transfer function by the mass of the sprung portion to calculate a height from a roll center of the vehicle to a center of mass of the sprung portion.

A method for analyzing sensitivity of automotive body parts with respect to an automotive body performance of an automotive body including the automotive body parts, the method being executed by a computer and including: acquiring an automotive body model including the automotive body parts modelled with elements; setting: an objective condition related to an automotive body performance of the automotive body model; a constraint condition related to a volume of the automotive body model; and a loading condition to be imposed on the automotive body model; obtaining sensitivities of respective elements that satisfies the objective condition under the loading condition and the constraint condition; and calculating sensitivities of each of the automotive body parts based on the sensitivities of the respective elements.

A system and various methods for determining a center of mass of an aircraft with a plurality of shock strut assemblies is illustrated. Multiple sensors, including a gas pressure sensor, and/or a position sensor, may be used to gather data and determine the center of mass of the aircraft. Various methods illustrated herein may evaluate the center of mass relative to a wheelbase axis and a wheel tread axis based on the gathered data.

The present disclosure relates to a device (100) for determining orientation of an object (3). The device (100) includes a hollow-spherical enclosure (2) supportable by the object (3) and a plurality of sensors (S1 . . . Sn) circumferentially disposed in the hollow-spherical enclosure (2). A gimbal assembly (1) is secured in the hollow-spherical enclosure (2), where at least one gimbal ring of the gimbal assembly (1) is fixed perpendicular to a gravitational weight a gravitational vector (G) of the gimbal assembly (1). Further, at least one light source (8) is secured in the gimbal assembly (1) and the gimbal assembly (1) is configured to align the at least one light source (8) relative to orientation of the object (3) such that, the light emitted by the at least one light source (8) is incident on at least one sensor of the plurality of sensors (S1 . . . Sn), to determine orientation of the object (3).

A method for loading an Unmanned Aerial Vehicle with one or more items is disclosed. The method includes positioning one or more items in specific positions within one of the Unmanned Aerial Vehicle and a container configured to be carried by the Unmanned Aerial Vehicle based on a Center of Gravity of each of the one or more items. The method also includes securing the one or more items in the specific positions within the one of the Unmanned Aerial Vehicle and the container to prevent the one or more items from shifting and changing a combined Center of Gravity of the one or more items combined with the one of the Unmanned Aerial Vehicle and the container during a flight of the Unmanned Aerial Vehicle.