Aircraft Propulsion Electrical Layout for EMI and Space Optimization
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Solution Overview
Problem
Existing aircraft propulsion systems lack an efficient and optimized electrical system configuration that effectively manages high and low power electrical components, leading to potential electromagnetic interference and inefficient use of space.
Innovation Solution
A configuration that separates high and low power electrical components by arranging them on opposite lateral sides of the fan case, with electrical lines running in parallel through a bifurcation, minimizing electromagnetic interference and optimizing space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If high and low power electrical components are arranged together in the same space, then space utilization is improved, but electromagnetic interference increases
Solution Approach 1:
The electrical system is segmented into distinct high power and low power zones, with high power components arranged on one lateral side of the fan case and low power components on the opposite lateral side. This spatial segmentation reduces electromagnetic interference while maintaining efficient space utilization through the bifurcation structure that allows both zones to coexist in the same overall housing space.
2Area of stationary object
If electrical lines are routed through a bifurcation structure, then space utilization is optimized, but routing complexity increases
Solution Approach 1:
The bifurcation structure utilizes radial and circumferential dimensions to route electrical lines efficiently. By transitioning from a single-dimensional linear path to a two-dimensional radial-circumferential path through the bifurcation, the design optimizes space utilization while the standardized bifurcation geometry simplifies the routing process rather than increasing complexity.
3Object-affected harmful factors
If high power electrical components are isolated from low power components, then electromagnetic interference is reduced, but system complexity increases
Solution Approach 1:
The high power and low power electrical systems are merged into a unified architecture that shares common infrastructure such as the fan case housing and bifurcation routing structure. This merging approach reduces overall system complexity by eliminating the need for separate independent systems while still maintaining electromagnetic isolation through strategic spatial arrangement on opposite lateral sides.
Data Source
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AI summary
A system for an aircraft includes a fan rotor (46), an engine core (70), a fan case (64), a core case (62), a bifurcation (158), an inner electrical system (148), an outer electrical system (150) and multiple electrical lines electrically coupling the inner electrical system (148) to the outer electrical system (150). The engine core (70) is configured to drive rotation of the fan rotor (46) about an axis (26). The inner electrical system (148) is arranged with the engine core (70). The outer electrical system (150) is mounted to the fan case (64). The electrical lines extend between and electrically couple the inner electrical system (148) to the outer electrical system (150). The electrical lines run in parallel along one another radially through the bifurcation (158). A first set of the plurality of electrical lines extends in a first direction circumferentially along the fan case (64) away from the bifurcation (158), a second set of the plurality of electrical lines extends in a second direction circumferentially along the fan case (64) away from the bifurcation (158).