9489 E. Ironwood Square DriveScottsdale, AZ 85258Tel (480) 945-9988 Fax (480) [email protected]
ZONA TECHNOLOGY INC
The ZONA Technology, Inc. corporate logo and ZAERO are trademarks of the ZONA Technology, Inc. in the United States and other countries. All other trademarks belong to their respected owners. This documentation, as well as the ZAEROsoftware, are furnished under license and may be used only in accordance with terms of such license.
2017 ZONA Technology, Inc. All Rights Reserved Worldwide.
vs. 9.2vs. 9.2
ZAER
O
ZONA
Applications M
anual Vol. 2vs. 9.2
ZAERO
ZONA TECHNOLOGY INC
Applications Manual Vol. 2Engineers Toolkit for Aeroelastic Solutions
ZONA TECHNOLOGY INC
ZAERO Version 9.2
APPLICATIONS MANUAL (Vol. II)
ZONA 01 17.0 January 2017
2017 ZONA Technology, Inc. All rights reserved.
Second Edition 1-17
DISCLAIMER THE MATERIAL PRESENTED IN THIS TEXT IS FOR ILLUSTRATIVE AND EDUCATIONAL PURPOSES ONLY, AND IS NOT INTENDED TO BE EXHAUSTIVE OR TO APPLY TO ANY PARTICULAR ENGINEERING PROBLEM OR DESIGN. ZONA TECHNOLOGY, INC. ASSUMES NO LIABILITY OR RESPONSIBILITY TO ANY PERSON OR COMPANY FOR DIRECT OR INDIRECT DAMAGES RESULTING FROM THE USE OF ANY INFORMATION
MSC.PATRAN is a registered trademark of the MSC Software Corporation. MSC.NASTRAN is a registered trademark of the MSC Software Corporation. MSC.NASTRAN is an enhanced, proprietary version developed and maintained by the MSC Corporation. MSC.ARIES is a trademark of MSC. I-DEAS and FEMAP are trademarks of Structural Dynamics Research Corporations. TECPLOT is a trademark of TECPLOT Inc. Other product names and trademarks are the property of their respective owners.
ZZZOOONNNAAA TTTEEECCCHHHNNNOOOLLLOOOGGGYYY PPPRRROOOPPPRRRIIIEEETTTAAARRRYYY
ZONA Technology, Inc. 9489 E. Ironwood Square Drive Scottsdale, AZ 85258-4578 Tel: (480) 945-9988 Fax: (480) 945-6588 E-mail: [email protected]
This page is intentionally left blank.
TABLE OF CONTENTS i
TABLE OF CONTENTS
Vol. 1 PAGE 1.0 INTRODUCTION ............................................................................................ 1-1
1.1 WHAT IS ZAERO ......................................................................................................... 1-1 1.2 ZAERO/UAIC MODULE .............................................................................................. 1-3 1.3 HIGH-FIDELITY GEOMETRY (HFG) MODULE ............................................................... 1-6 1.4 3D SPLINE MODULE ..................................................................................................... 1-7 1.5 ZONA DYNAMIC MEMORY AND DATABASE MANAGEMENT SYSTEM ......................... 1-7 1.6 BULK DATA INPUT ....................................................................................................... 1-8 1.7 GRAPHIC DISPLAY CAPABILITY ................................................................................... 1-8 1.8 FLUTTER MODULE ....................................................................................................... 1-8 1.9 ZAERO/ASE: AEROSERVOELASTICITY (ASE) MODULE ............................................ 1-8
1.10 TRIM MODULE ........................................................................................................... 1-10 1.11 MLOADS MODULE ................................................................................................... 1-11 1.12 ELOADS MODULE .................................................................................................... 1-11 1.13 GLOADS MODULE .................................................................................................... 1-11 1.14 NLFLTR MODULE ..................................................................................................... 1-12 2.0 FLUTTER SAMPLE CASES ......................................................................... 2-1
2.1 CASE 1: SUBSONIC (M=0.45) FLUTTER ANALYSIS OF A 15-DEGREE SWEPTBACK WING(HA145E) 2-1
2.2 CASE 2: FLUTTER ANALYSIS OF A CROPPED DELTA WING BODY (CROP) ........... 2-31 2.3 CASE 3: LOW SUPERSONIC (M=1.3) FLUTTER ANALYSIS OF A 15-DEGREE
SWEPTBACKWING (HA145FB) WITH AND WITHOUT THICKNESS EFFECTS 2-48 2.4 CASE 4: HIGH SUPERSONIC (M=3.0) FLUTTER ANALYSIS OF A 15-DEGREE
SWEPTBACK WING (HA145G) WITH AND WITHOUT THICKNESS EFFECTS 2-65 2.5 CASE 5: F-16 AIRCRAFT WITH EXTERNAL STORES (F16MA41) ............................... 2-84 2.6 CASE 6: TRANSONIC FLUTTER ANALYSIS OF THE AGARD STANDARD 445.6 USING
THE ZTRAN METHOD ................................................................................ 2-104 2.7 CASE 7: FLUTTER ANALYSIS OF THE AGARD 445.6 WEAKENED WING USING THE
ZTAW MODULE ......................................................................................... 2-130
ii TABLE OF CONTENTS
TABLE OF CONTENTS (cont.) PAGE 3.0 ASE SAMPLE CASES ................................................................................... 3-1
3.1 CASE 1: OPEN-LOOP FLUTTER AND CONTINUOUS GUST ANALYSIS
OF THE CROPPED DELTA WING CASE (CROPASE) ...................................... 3-1 3.2 CASE 2: OPEN-LOOP AND CLOSED-LOOP ASE STABILITY ANALYSIS OF A GENERIC ADVANCED FIGHTER AIRCRAFT (AFA) .............. 3-24
4.0 STATIC AEROELASTIC / TRIM SAMPLE CASES ..................................... 4-1
4.1 CASE 1: ASYMMETRIC ROLLING PULLOUT AT M=0.9, (Q=1200 PSF) ....................... 4-30 4.2 CASE 2: SYMMETRIC 1-G LEVEL FLIGHT AT M=0.9, (Q=40 PSF) .............................. 4-35 4.3 CASE 3: OVER-DETERMINED TRIM SYSTEM WITH INDUCED DRAG
AND STRESS MINIMIZATION ........................................................................ 4-37 5.0 HOW TO IMPORT THE USER SUPPLIED GENERALIZED
AERODYNAMIC MATRICES AND STRUCTURAL MATRICES ........... 5-1
5.1 CREATION OF MATRIX ENTITIES ................................................................................. 5-1 5.2 IMPORTING A MATRIX BY DIRECT MATRIX INPUT ..................................................... 5-3 5.3 NOTES FOR IMPORTING THE STRUCTURAL MATRICES ................................................. 5-3 5.4 NOTES FOR IMPORTING THE GENERALIZED AERODYNAMIC MATRICES ...................... 5-3
6.0 TRANSIENT MANEUVER LOADS SAMPLE CASES ................................ 6-1
6.1 SYMMETRIC TRANSIENT MANEUVER LOADS OF THE OPEN-LOOP FSW CONFIGURATION (M144OPEN.INP) ............................................................................. 6-4 6.2 SYMMETRIC TRANSIENT MANEUVER LOADS OF THE CLOSED-LOOP FSW CONFIGURATION (M144CLOSE.INP) ......................................................................... 6-30
7.0 TRANSIENT EJECTION LOADS SAMPLE CASES .................................... 7-1
7.1 SUBCASE 1: THE ELOADS ANALYSIS OF THE OPEN-LOOP FSW CONFIGURATION ....... 7-5 7.2 SUBCASE 2: THE ELOADS ANALYSIS OF THE CLOSED-LOOP FSW CONFIGURATION . 7-10
TABLE OF CONTENTS iii
TABLE OF CONTENTS (cont.) Vol. 2 PAGE 8.0 DISCRETE GUST LOADS SAMPLE CASES ............................................. 8-1
8.1 CASE 1: 2-D AIRFOIL SUBJECTED TO A SHARP-EDGED GUST AT M = 0.0 ................... 8-3 8.2 CASE 2: OPEN-LOOP AND CLOSED-LOOP DISCRETE GUST RESPONSE ANALYSIS
OF A GENERIC BUSINESS JET (GBJ) ........................................................... 8-36 8.3 CASE 3: OPEN-LOOP AND CLOSED-LOOP CONTINUOUS GUST RESPONSE ANALYSIS OF A GENERIC BUSINESS JET (GBJ) ........................................................... 8-161
9.0 TRANSIENT RESPONSE OF NONLINEAR OPEN/CLOSED- LOOP
AEROELASTIC SYSTEMS: SAMPLE CASES OF THE NLFLTR MODULE ...... 9-1 9.1 3 D.O.F. AIRFOIL WITH FREEPLAY ................................................................................. 9-1 9.2 STRUT-BRACED WING SUBJECTED TO DISCRETE GUST .............................................. 9-44 9.3 FOLDING WING WITH BILINEAR STIFFNESS IN HINGES................................................ 9-99 9.4 3 D.O.F. AIRFOIL WITH FREEPLAY MODELED BY CLOSED-LOOP SYSTEM ................. 9-186 10.0 PARAMETRIC FLUTTER ANALYSIS FOR MASSIVE NUMBER OF
AIRCRAFT WITH STORES CONFIGURATIONS .................................... 10-1 10.1 FORMULATIONS OF THE FLTPRAM AND AFLTPRM MODULES ................................ 10-1 10.2 DESCRIPTION OF THE FSW+STORE MODEL ................................................................ 10-4 10.3 SUBCASE 1: FLUTTER ANALYSIS FOR THREE SYMMETRIC STORE CONFIGURATIONS ......... 10-6 10.4 SUBCASE 2: FLUTTER ANALYSIS FOR THREE ASYMMETRIC STORE CONFIGURATIONS USING HALF-SPAN MODEL ............................................................................................ 10-9 11.0 WHIRL FLUTTER SAMPLE CASES ................................................................... 11-1 11.1 CASE 1: D-1807 PROPELLER ....................................................................................... 11-1 11.2 CASE 2: BAH WING WITH NACELLE AND PROPELLER ................................................ 11-19
iv TABLE OF CONTENTS
This page is intentionally left blank.
GUST LOADS SAMPLE CASES 8-1
Chapter 8
GUST LOADS SAMPLE CASES
The input bulk data cards for Gust LOADS (GLOADS) analysis are very similar to those used in the transient Maneuver LOADS (MLOADS) analysis, except that the MLDCOMD bulk data card for MLOADS is replaced by the DGUST bulk data card for speci
