Multi-axis Oscillating Flight Simulator for IMU Testing
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Solution Overview
Problem
Inertial measurement units face challenges in simulating complex flight paths, particularly high speeds and accelerations, due to errors introduced by centrifugal forces in existing setups, and require either complicated wiring or wireless communication, which can be inaccurate and costly when wireless communication is prohibited.
Innovation Solution
A multi-axis oscillating flight simulator apparatus comprising a slide, a support structure, and a rotatable table that allows for accurate simulation of oscillating flight paths using wired communication, eliminating the need for wireless signals by enabling movement along a first axis and rotation about orthogonal axes, thereby reducing errors and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If inertial measurement units are placed on spinning surfaces to simulate high speeds or acceleration, then simulation capability is improved, but measurement precision deteriorates due to centrifugal forces introducing errors
Solution Approach 1:
Instead of using continuous spinning motion to simulate flight, the patent employs oscillating motion that reverses direction periodically. The flight path simulator moves the inertial measurement unit back and forth along a linear path, eliminating the centrifugal forces present in continuous rotation while still achieving high-speed simulation through rapid oscillation. This inversion from rotational to oscillating motion resolves the contradiction between speed simulation and measurement precision.
2Device complexity
If wireless communication is used to transmit signals from inertial measurement units, then device complexity is reduced, but measurement precision deteriorates and cost increases when wireless communication is prohibited
Solution Approach 1:
The patent extracts the inertial measurement unit from a rotating environment and places it on a linear oscillating flight path simulator. This extraction eliminates the need for complex rotary connectors or wireless communication systems, allowing for simple wired signal transmission while maintaining measurement precision. The SIMU moves linearly along a guide rail, enabling straightforward cable routing without the complications of rotational joints.
3Measurement precision
If complicated wiring systems are used to transmit signals from inertial measurement units, then measurement precision is maintained, but device complexity increases
Solution Approach 1:
By inverting the motion from continuous rotation to linear oscillation, the patent simplifies the wiring system dramatically. The linear back-and-forth motion allows for simple cable routing along the guide rail, eliminating the need for complex rotary connectors, slip rings, or wireless communication infrastructure while maintaining full signal transmission accuracy through straightforward wired connections.
Data Source
AI summary
An apparatus for simulating an oscillating flight path is provided. The apparatus comprises a slide extending along a first axis; a support structure slidably coupled to the slide; and a table connected to the support structure. The support structure is operable to move along the slide. The table is coupled to the support structure and operable to rotate about a second axis orthogonal to the first axis. The table comprises a surface that is parallel to the second axis and that is operable to rotate about a third axis orthogonal to the second axis.