File:Computer code for interactive rotorcraft preliminary design using a harmonic balance method for rotor trim (IA computercodefori1094539985).pdf
Original file (1,275 × 1,650 pixels, file size: 2.76 MB, MIME type: application/pdf, 92 pages)
Captions
Captions
Summary[edit]
Computer code for interactive rotorcraft preliminary design using a harmonic balance method for rotor trim
(   ) |
||
|---|---|---|
| Author |
Nicholson, Robert Kirk, Jr. |
 |
| Title |
Computer code for interactive rotorcraft preliminary design using a harmonic balance method for rotor trim |
|
| Publisher |
Monterey, California. Naval Postgraduate School |
|
| Description |
The Joint Army/Navy Rotorcraft Analysis and Design (JANRAD) computer program was developed to aid in the analysis of helicopter rotor performance, stability and control, and rotor dynamics. JANRAD is an interactive, user friendly program, capable of accurately and quickly solving helicopter design problems at the preliminary design level. The program was written as a collection of MATLAB script and function files (M-files) using the 386-MATLAB version 3.5 programming language. The M-file janrad. in invokes the user interface routines and calls various analysis modules (M-files) which contain the appropriate analysis and output routines. Each of these modules use a common routine, trim.m, which employs blade element theory and a harmonic balance method for rotor trim. The program is limited to conditions of steady flight with no winds and is accurate at a hover and for forward airspeeds greater than or equal to 50 knots. Subjects: Helicopter; Preliminary design; Rotor trim; Harmonic balancing; Blade element theory |
|
| Language | English | |
| Publication date | September 1993 | |
| Current location |
IA Collections: navalpostgraduateschoollibrary; fedlink |
|
| Accession number |
computercodefori1094539985 |
|
| Source | ||
| Permission (Reusing this file) |
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted. | |
Licensing[edit]
|
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
|
 |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 05:41, 16 July 2020 |  | 1,275 × 1,650, 92 pages (2.76 MB) | Fæ (talk | contribs) | FEDLINK - United States Federal Collection computercodefori1094539985 (User talk:Fæ/IA books#Fork8) (batch 1993-2020 #11998) |
You cannot overwrite this file.
File usage on Commons
The following page uses this file: