Upload
ngotram
View
254
Download
0
Embed Size (px)
Citation preview
J6924_F135_Propulsion_2012 - 1
F135 Propulsion Integration Topics
for Symposium on Jet Engines
Haifa, Israel
Tom Johnson Program Chief Engineer
Operational Military Engines
25 October 2012
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 2
Agenda
• F135 Development Program History
• CTOL/CV Propulsion Integration Challenges
– Engine Mounts / Interfaces
– Aircraft Inlet / Fan Compatibility
– Fan Duct Heat Exchanger / IPP Integration
• STOVL Unique Propulsion Integration Challenges
– Integrated Control System & Software
– Lift Fan Performance / Vane Box Integration Effect
– Lift Fan Operability
– Roll Post Weight Reduction
• Summary
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 3
Preliminary Design Review – May 02 Critical Design Review – May 03 CV/CTOL First Engine to Test – Oct 03 STOVL First Engine to Test – Apr 04 Post-Test CV/CTOL/STOVL CDR – Mar 05 Flight Test Engines #1-3 – Delivered CTOL Initial Flight Release – Oct 06 CTOL First Flight – Dec 06 LRIP Contract Awarded – Sep 07 STOVL Roll-Out – Dec 07 STOVL Flight Clearance Review – Mar 08 STOVL Up & Away Flight Clearance – May 08 STOVL First Flight – Jun 08 STOVL Powered Lift Flight Release – Jan 09 First STOVL Vertical Landing – March 10 CV/CTOL Initial Service Release – Apr 09 STOVL Initial Service Release – Dec 10
F135 Qualification Program Milestones
F-35 AA-1 Flight Test
F-35 BF-1 Flight Test
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 4
CTOL / CV STOVL
ISR Achieved ISR Achieved
Completed Over 23,700 Test Hours (Ground and Flight)
• 11,788 Test Hours Achieved
• 5 Ground Test Engines
• 11 Flight Test Engines Delivered
- 8 CTOL, 3 CV
• 11,964 Test Hours Achieved
• 3,402 Hours Powered Lift
• 8,821 Clutch Engagements
• 6 Ground Test Engines
• 7 Flight Test Engines Delivered
F135 SDD Program
As of 10/15/12 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 5
F135 Propulsion System Characteristics
40K Thrust Class
Advanced Prognostics Health Management Features
3 Stage Fan
1st Stage Hollow IBR
Nozzle 6 Stage
Compressor (HPC) Split Cases and
Stators
Intermediate Case
3rd Stage
Turbine Blade
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 6
Main Engine Integration
Current A-1 F-35 FWD Upper
Mount Design
Top Forward
Mount
Forward
Side Link
Aft Mounts
Aft Side Link
Current A-1 F-35 FWD Upper
Mount Design
Top Forward
Mount
Forward
Side Link
Aft Mounts
Aft Side Link
• Mounts
• Interfaces
• Install Trailer
Flight test Engine 6 in STOVL BF-1
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 7
FS 424.5
Cruise
Bellmouth
Inlet Compatibility/Aeromechanical Testing
Sea Level
Static Inlet
PT2/PT0
1.00
0.98
0.96
0.94
0.92
0.90
0.88
0.86
0.84
0.82
0.80
SI-05 Test Data:Run47 Config CTOL BL Wc357
Wc2 = 357.484Pt2Pt0 = 0.96214D2 = 0.12071DPCOPA = 0.02613DPRPMX = -0.02665
ITAR Technical Data
Lockheed Martin Aeronautics Company
SI-05 Test Data 04 Dec 2003 Run47_Config_CTOL_BL_Wc357
Risk Reduction Testing Verifies Compatibility
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 8
Main Engine Integration
Fan Duct Heat Exchangers
Fan Duct
Heat Exchanger
IPP System
Plumbing
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 9
F135 Propulsion System Characteristics
40K Thrust Class / Variable Cycle Engine
Lift Fan Clutch
& Driveshaft
F119 Based
Controls & Externals
3 Stage Fan
Evolved F119 Core
2 Stage LPT
3 Bearing Swivel
Module Roll Control Ducts and
Nozzles
Modulated Exhaust Cooling
Fan Duct Blocker
2 Stage
Lift Fan
Variable Area
Vane Box Nozzle
Advanced Prognostics Health Management Features
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 10
Vehicle
Management
Computers
Integrated Flight & Propulsion Control
Fore/Aft
Acceleration
Control
Roll Rate Control
Vertical Axis Control
F-35B STOVL Unified Control
Thrust
Split
Pilot Commands to Vehicle Management Computers
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 11
Integrated Flight & Propulsion Control
Air Vehicle
Management
Computers
PHAM Main Engine
FADECs
Vehicle Management Computers Commands to Propulsion
Lift System
FADECs
Thrust
Split
Thrust
Pitch -
Vane Box
Pitch – 3BSD
Roll
Moment
YAW – 3BSD
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 12
Lift Fan Integration – Development
Insufficient Airflow Turning to Accommodate Forward Vane
Box Offset
Thrust Thrust
Vane Box Offset
For Hover Optimization
Cg
Turning Flow
Vane Box
Centerline Offset
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 13
Lift Fan Performance Recovery Verified for Flight Test
Block 1 Block 2
IFR Block 3
FFR Po
we
r M
arg
in
to
Ach
ieve
Th
rust
Block 3 Block 1/2
F135 SDD Program Review
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 14
Lift Fan Inlet Flow Angularity
Pre-Flight Test Configuration
Aero
Interface
Plane
First Rotor
Inlet Plane
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 15
Flight Test Fixes in Place
• Door Angle
Flow Angularity Improvements
• Inlet Modification
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 16
STOVL FFR Lift Fan Stability
Positive Stall Margin Demonstrated with Fixes
C-14 Test Stand
Crosswind Set Up
F35B Lift Fan
Inlet Test
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 17
STOVL Vane Box Integration
BF1-351-001sml Releasable per JSF05-2781
Vane Box Sidewalls Are Aircraft Structure
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037
J6924_F135_Propulsion_2012 - 18
Qualitative Assessment Weight Reduction
Lightweight Roll Post Duct
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Release JSF12-1037