Shock-isolation structure

• US 9,068,622 B2
• Filed: 10/23/2010
• Issued: 06/30/2015
• Est. Priority Date: 11/20/2009
• Status: Active Grant

• Current Assignee: Airbus DS Electronics And Border Security GmbH
• Original Assignee: EADS Deutschland GmbH (Airbus SE)
• Inventors: Malchev, Delyan, Veerkamp, Hermann-Josef
• Primary Examiner(s): McKinnon, Terrell
• Assistant Examiner(s): BRESLIN, DANIEL J
• Application Number:
  US13/510,707
• Publication Number:
  US 20120248282A1
• Time in Patent Office: 1,711 Days
• Field of Search: 248/550, 248/636, 744/900.6, 297/14
• US Class Current: 1/1
• CPC Class Codes: F16F 15/027 comprising control arrangements F16F15/0237 takes precedence
• CPC Class Codes: F16F 9/53 Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically F16F13/30 takes precedence; brakes comprising a medium with electrically or magnetically controlled friction F16D57/002; electrorheological fluids per se C10M171/001; magnetorheological fluids per se H01F1/447

Abstract

A shock isolation structure for mounting a radar system to a supporting surface on board of a vessel includes a platform on which the radar system can be attached, six strut-like damping elements operating in both tension and compression between the platform and the supporting surface. The damping elements are oriented in a truss configuration with first ends of the damping elements connected to the supporting surface for universal movement and with second ends of the damping elements connected to the platform for universal movement. Each of the damping elements includes a magnetorheological or electrorheological fluid damper.

Claims

1. A shock isolation structure for mounting a radar system to a supporting surface on board of a vessel, comprising:

a platform configured for attachment to the radar system

six strut-like damping elements operating in both tension and compression between the platform and the supporting surface; and

a damper controller operatively connected to each of the damping elements,

wherein said damping elements are oriented in a truss configuration with first ends of said damping elements connected to said supporting surface via first universal joints and with second ends of said damping elements connected to said platform via second universal joints,

wherein each of said damping elements comprises a magnetor-heological or electrorheological fluid damper, and

wherein the damper controller is configured to control stiffness of each of the damping elements based on an acceleration load acting on the radar system.

2. The shock isolation structure according to claim 1, wherein each of said damping elements comprises a spring arranged in parallel to the magnetorheological or electrorheological fluid damper.

3. The shock isolation structure according to claim 1, wherein the damper controller is configured so that said magnetorheological or electrorheological fluid damper is rigid when subjected to accelerations up to 5 g and non-rigid when subjected to accelerations exceeding 5 g.