Currently, there has been a great deal of concern in the SURVIAC community regarding the existence, availability, and adequacy of data sets for the SURVIAC models. In addition, the extent of the validation and/or verification effort that has or has not been performed on each data set is typically unknown. The JTCG/AS has recognized these technical concerns and has funded a SURVIAC technical area task (TAT) to catalog data sets available for the SURVIAC models in a single reference document.
The Goal: List data sets for the SURVIAC models in a single reference document...
SURVIAC will compile, update and maintain the catalog and will also document model data sets that are available to SURVIAC model users. For each data set, the catalog will identify:
Your response to the survey insert is vital to the success of this catalog...
This technical area task involves contacting the major users of the SURVIAC models. Every effort will be made to include all possible users and builders of SURVIAC model data sets. If you can provide any information that would assist in the compilation of a consolidated model data set catalog, please fill out the SURVIAC Model Data Set Survey enclosed in this newsletter.
If you have any questions or comments please contact Mrs. Linda Hamilton or Mr. Barry Vincent at (513) 429-9509. The survey may be returned to SURVIAC by mail or faxed to (513) 255-9673.
Thank you in advance for your participation.
Note: The survey mentioned above is contained in the hardcopy version of the January Bulletin. If you'd like a hardcopy of the survey mailed or faxed to you, please contact Mrs. Geri Bowling at SURVIAC, (513) 255-4840.
The Modular UNIX-based Vulnerability Estimation Suite (MUVES) is a computing environment developed by the Army Research Laboratory (ARL) for conducting vulnerability/lethality (V/L) studies. MUVES employs the latest software technologies both in design and implementation to optimize useability, improve the ability to incorporate methodology advances, provide an audit trail of the analyses, and facilitate the configuration management and archiving of analyses. With the growing acceptance and use of MUVES within the V/L community, particularly for conducting ground vehicle assessments, efforts have been initiated to assess MUVES Release 2.0 for possible incorporation into SURVIAC.
MUVES is a suite of software modules that are ANSI C compliant and run on System V compatible UNIX platforms. Originally, MUVES was developed as a framework within which to standardize, reorganize, and rigorously manage the configuration of Army compartment and point-burst models to ensure that vulnerability analysts using these codes would be producing consistent and auditable results. It provides a flexible platform able to accommodate existing vulnerability methodologies as well as future vulnerability applications.
Currently, the compartment-level model capabilities of VAMP (Vulnerability Assessment Methodology Program) are available under the MUVES environment. Development is currently proceeding on a stochastic point-burst model, SQuASH (Stochastic Quantitative Analysis of System Hierarchies), which will be incorporated into a later release. Both models provide vulnerability analysis capabilities of conventional direct-fire munitions against ground vehicles.
The compartment-level vulnerability assessment model included in the MUVES environment is used for evaluating the vulnerability of armored vehicles against kinetic-energy (KE) projectiles, shaped-charge warheads, and explosively-formed penetrators (EFPs). A compartment-level model is a simulation code in which the geometric representation of the target is at a compartment level; major systems of components (i.e., crew, engine) are grouped both functionally and physically, and are modeled as one entity (i.e., compartment). This method is usually used for vehicles in the design stage or for vehicles where little detailed information on internal components is available. Some components, such as fuel and ammunition, can be handled as distinct items and modeled individually. Empirical data from actual test firings are used to relate quantifiable damage parameters for the components (or compartments) to remaining utility values for the target. The empirical data takes into account the damage to internal physical components in the compartments that were not individually modeled.
In addition to on-going development work on the SQuASH model, another development utilizing the MUVES environment is the tri-service Advanced Joint Effectiveness Model (AJEM)/Modular Air-System Vulnerability Estimation Network (MAVEN), a stochastic, point-burst computer simulation model for air system analysis. This model is intended to replace more than 20 existing V/L models throughout the Department of Defense (DoD), with the benefit of reducing code maintenance costs and allowing the services to concentrate their efforts toward the improvement and documentation of a single code. AJEM/MAVEN is intended for V/L, endgame, and battle damage repair (BDR) analyses for rotary-wing, fixed-wing, and missile systems.
For further information on MUVES, please contact Lisa Garriques, SURVIAC Aberdeen Satellite Office, at (410) 273-7794, or send e-mail to the ARL/BVLD Vulnerability Methodology Branch at mdt@brl.army.mil. Send written requests to
Director, Army Research LaboratoryThey're heeere!
Yes, the Countermeasures Handbooks are finally in! A year ago, SURVIAC first announced they were on the way, but that premature announcement did not anticipate all the printing delays ahead. Now, the wait is over and delivery of the handbooks is underway. As we apologize to some long-suffering requesters, it might be worthwhile to review what it is all this fuss has been about.
The Countermeasures Handbook for Aircraft Survivability was sponsored and prepared by the Susceptibility Reduction Subgroup of the Joint Technical Coordinating Group on Aircraft Survivability, JTCG/AS. This handbook replaces a 1977 version of the Countermeasures Handbook with the intent to faithfully document the current state-of-the-art. The three-volume handbook is Secret/NOFORN. Volume I provides a background on countermeasures, signatures, and detection. Volume II covers on-board and off-board countermeasures as well as supporting ECM. The final volume covers human factors, test and evaluation, and tactics. The handbook addresses the full range of RF, IR, and EO technologies. The intent is to provide a key reference so that future development activity will be conducted on the soundest possible footing.
The CM Handbook is now available from SURVIAC to qualified users with a need to know. The three-volume set is free to government personnel and costs $200 for contractors. For more information on obtaining the CM handbook, please call Ms. Sue Green, (513) 255-4840. [Delivery should be prompt; we have 3,000 on-hand!]
The program simulates the encounter between a missile and its airborne target and computes the expected target damage. The encounter conditions can be obtained from missile flight simulations, missile performance data, or as user-specified distributions of encounter parameters. The program reports hit and survival probability computation results as specified component, subsystem, system, and total aircraft levels. Various levels of damage severity can be defined by the analyst.
SCAN gives the analyst several options in defining individual aircraft components and in using vulnerability criteria to compute the expected damage level. In addition, the model is constructed to allow adaptability to other damage mechanisms such as fragment velocities, densities, and masses available to the damage computation submodels. SCAN features geometric aircraft representation, missile trajectory generation, missile fuzing computation, damage mechanisms, and target configuration.
Input: SCAN accepts aircraft missile geometry, warhead fragment data, aircraft geometrical representation, missile fuzing, and damage assessment.
Output: The model produces a terminal encounter summary that has missile trajectory and fuze performance, aircraft component damage summary, and subsystem, system and total aircraft survivability probabilities.
Limitations: SCAN does not model blast effects.
SURVIAC will host another Survivability Analysis Workshop during 17-21 April 1995 at Wright-Patterson AFB, OH. Like the workshop held in the spring of '94, this workshop will focus on "how-to-do-it" analysis, stringing together a variety of models, data sources, and analytic judgment into a comprehensive survivability analysis. We will retain the philosophy of referring to a sample case study throughout the week as we progress through the survivability analysis topics. However, the FY95 workshop's case study will be a rotary-wing aircraft, in lieu of last year's fixed-wing aircraft.
For more information on attending the workshop, please call Ms. Sue Green at (513) 255-4840.
If you're out there surfing the Internet, make sure you catch a wave to SURVIAC's new home page. Just grab your favorite surfboard, such as Mosaic, Netscape, or any other World Wide Web (WWW) browser, and load our uniform resource locator (URL): "http://surviac.flight.wpafb.af.mil".
SURVIAC's home page, which came on-line as of October 31, 1994 (trick or treat?), provides access to survivability/vulnerability information presented in a graphical, point-and-click environment. Information that can be accessed includes the following:
Best of all, you can access this wealth of information at your leisure; our WWW server is available 24-hours a day. In addition to SURVIAC's home page, the home pages maintained by several other IACs, and information on the IAC program itself can be accessed via DTIC's IAC hub page located at "http://www.dtic.dla.mil/iac". After you hit the beach, tell us what you think! All comments, questions, and suggestions are welcome and should be forwarded to Ken Applin at e-mail address applin_ken@bah.com.
ATEDS topics range from user requirements to expendable countermeasures development programs and associated aircraft systems.
For more information, please call Mr. Gary Broxton, NAWC, Crane Division, DSN 482-2814, commercial (812) 854-2814.
About SURVIAC
Volume XI, Number 1
SURVIAC, a DoD Information Analysis Center (IAC), is administratively managed by the Defense Technical Information Center (DTIC) under the DoD IAC Program. SURVIAC is sponsored by the Joint Technical Coordinating Groups on Aircraft Survivability (JTCG/AS) and for Munitions Effectiveness (JTCG/ME). The Contracting Officers Technical Representative (COTR) for the Center is Mr. Ray Flores, WL/FIV Bldg 63, 1901 Tenth Street, Wright Patterson AFB Ohio 45433-7605. He may be reached at DSN 785-6823 or (513) 255-6823.
Inquiries about SURVIAC's capabilities, products and services, or comments regarding this publication may be addressed to:
WL/FIVS/SURVIAC BLDG 45
2130 Eighth St Ste 1
Wright Patterson AFB OH 45433-7542
(513) 255-4840, DSN 785-4840,
Fax (513) 255-9673
E-Mail surviac@surviac.flight.wpafb.af.mil