DANIEL SIM, DPT
Physical Therapy at 120 Ave, Bellevue, WA

License number
Washington PT60763023
Category
Medical Practice
Type
Physical Medicine & Rehabilitation
Address
Address 2
606 120Th Ave NE STE 100, Bellevue, WA 98005
15 SW Everett Mall Way STE G, Everett, WA 98204
Phone
(425) 688-0223
(425) 355-5222

Professional information

Daniel Sim Photo 1

Hard Landing Report Based On Sink Rate Algorithm

US Patent:
2011027, Nov 10, 2011
Filed:
May 10, 2010
Appl. No.:
12/776464
Inventors:
Daniel T. Sim - Everett WA, US
Monte R. Evans - Everett WA, US
Jack S. Hagelin - Woodinville WA, US
Maarten Kattouw - Everett WA, US
Amy H. Lee - Everett WA, US
John D. Anderson - Auburn WA, US
Melville D.W. McIntyre - Bellevue WA, US
Assignee:
THE BOEING COMPANY - Irvine CA
International Classification:
G06F 19/00
US Classification:
701 29
Abstract:
A system and a method for detecting a hard landing or other high load event of an aircraft and then automatically triggering a report of such hard landing event. A sink rate algorithm is used to estimate the altitude rate of a main gear. The sink rate algorithm uses a plurality of flight parameters to estimate the main gear altitude rate, preferably including at least the following: pitch altitude, radio altitude, vertical acceleration, body pitch rate and vertical speed. This invention has the potential to reduce the number of unnecessary structural inspections, and may also limit the scope of any such required inspections.