04030208 is referenced by 34 patents and cites 6 patents.

A system for vibrating a seat within the cockpit of a flight trainer to simulate aircraft buffeting. The seat is mounted at its rear on a pair of linear bearings which permit z axis movement of the seat relative to the trainer cockpit. A hydraulic actuator, acting through a bell crank and link, vibrates the seat up and down under computer control. The computer determines the required seat vibration frequency and amplitude as a function of simulated aircraft angle of attack and maneuvering load factor. Analog signals representing the computed vibration frequency and amplitude are fed to a voltage controlled ramp generator which provides a seat driving signal to the hydraulic actuator through a closed loop servo system.

Title
Seat vibration system for simulating aircraft buffeting
Application Number
5/649447
Publication Number
4030208
Application Date
January 15, 1976
Publication Date
June 21, 1977
Inventor
Carl E Hoyt
8081 Hillandale Drive, San Diego, 92120
CA, US
Fred F Carver
R.D. 1, Box A317, Chenango Forks, 13746
NY, US
Agent
James C Kesterson
Jeffrey Rothenberg
Assignee
The Singer Company
NY, US
IPC
G09B 9/08
View Original Source