Method and device for determining the direction and the amplitude of a force applied to a propulsion nacelle for a boat
AssigneeAetc Sapphire
InventorsJean-Jacques Bry, Loic Vincent, Lionel Julliand, Pierre Humbert, Jan Hemmelmann
Life of this patent
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Abstract
The invention relates to a method for determining the direction and the amplitude of a force applied to a system (IO) comprising a stationary portion (13) and a mobile portion (12) which can deform when exposed to said force. Mechanical deformations applied to the mobile portion when exposed to said force are measured by measuring a distance between the stationary portion and the mobile portion in the direction of application of the force, and the distance measurements are processed in order to determine the amplitude and the direction of the force.
Claims20
A method for determining the direction and amplitude of a force applied to a system including a static portion comprising a static housing (i) comprising a cylindrical air diffuser being movable in rotation in relation to the static housing and (ii) being connected by a pivoting link to a movable portion deformable under the effect of said force, the cylindrical air diffuser being configured to channel a cooling air flow to the movable portion, the static portion comprising a set of measurement sensors placed inside the static housing and being angularly and regularly distributed in relation to an axis positioned over a half-perimeter of the static housing, measuring a movement of the movable portion in relation to the static portion and processors processing the measurements from the sensors,
- using the measurement sensors to measure a distance between an end of the cylindrical air diffuser opposite the pivoting link, and the static portion to determine the mechanical deformations being applied to the movable portion under the effect of said force, and
- using the processors to process the distance measurements to determine the amplitude and direction of the force.
A system having the functionality to determine the direction and amplitude of a force applied to the system, the system comprising,
- a static portion comprising a static housing (i) comprising a cylindrical air diffuser being movable in rotation in relation to the static housing and (ii) being connected by a pivoting link to a movable portion deformable under the effect of said force, the cylindrical air diffuser being configured to channel a cooling air flow to the movable portion;
- a set of measurement sensors placed inside the static housing, the set of measurement sensors being (i) angularly and regularly distributed in relation to an axis positioned over a half-perimeter of the static housing and (i configured to measure a distance between an end of the cylindrical air diffuser opposite the pivoting link, and the static portion;
- and
- processors configured to processing the measurements from the sensors to determine the amplitude and direction of the force.
A boat propulsion nacelle system having the functionality to determine the direction and amplitude of a force applied to the nacelle system, the nacelle system comprising,
- a static portion comprising a static housing (i) comprising a cylindrical air diffuser being movable in rotation in relation to the static housing and (ii) being connected by a pivoting link to a movable portion deformable under the effect of said force, the cylindrical air diffuser being configured to channel a cooling air flow to the movable portion;
- a set of measurement sensors placed inside the static housing, the set of measurement sensors being (i) angularly and regularly distributed in relation to an axis positioned over a half-perimeter of the static housing and (ii) configured to measure a distance between an end of the cylindrical air diffuser opposite the pivoting link, and the static portion;
- and
- processors configured to processing the measurements from the sensors.
Dependencies are inferred from the claim text.