Download Free Reduction Of Military Vehicle Acquisition Time And Cost Through Advanced Modelling And Virtual Simulation La Reduction Des Couts Et Des Delais Dacquisition Des Vehicules Militaires Par La Modelisation Avancee Et La Simulation De Produit Virtuel Book in PDF and EPUB Free Download. You can read online Reduction Of Military Vehicle Acquisition Time And Cost Through Advanced Modelling And Virtual Simulation La Reduction Des Couts Et Des Delais Dacquisition Des Vehicules Militaires Par La Modelisation Avancee Et La Simulation De Produit Virtuel and write the review.

Integrated weapon systems modeling and simulation from concept to operation were treated as essential tool for achieving cost and time reductions which are needed to field new systems. Such tools are being applied to lower the cost and design cycle times from both a design/development and recurring manufacturing perspective. Early identification of problems dramatically reduces costs and improves procurement as well as operations, increasing performance as well as cost effectiveness. The maturing of virtual manufacturing tools led to the review of the various approaches in the NATO framework. Advanced simulation in design, manufacture, and support were treated in four sessions on: Virtual Prototyping and Simulation Tool Integration Qualification by Analysis Design Synthesis Avoiding cost overruns and schedule delays connected to aerodynamic or hydrodynamic performance was treated in three sessions: CFD Modelling Of Non-Linear Phenomena; CFD Validation Procedures; And Error Evaluation Dynamically Coupled CFD.
Explore the military and combat applications of modeling and simulation Engineering Principles of Combat Modeling and Distributed Simulation is the first book of its kind to address the three perspectives that simulation engineers must master for successful military and defense related modeling: the operational view (what needs to be modeled); the conceptual view (how to do combat modeling); and the technical view (how to conduct distributed simulation). Through methods from the fields of operations research, computer science, and engineering, readers are guided through the history, current training practices, and modern methodology related to combat modeling and distributed simulation systems. Comprised of contributions from leading international researchers and practitioners, this book provides a comprehensive overview of the engineering principles and state-of-the-art methods needed to address the many facets of combat modeling and distributed simulation and features the following four sections: Foundations introduces relevant topics and recommended practices, providing the needed basis for understanding the challenges associated with combat modeling and distributed simulation. Combat Modeling focuses on the challenges in human, social, cultural, and behavioral modeling such as the core processes of "move, shoot, look, and communicate" within a synthetic environment and also equips readers with the knowledge to fully understand the related concepts and limitations. Distributed Simulation introduces the main challenges of advanced distributed simulation, outlines the basics of validation and verification, and exhibits how these systems can support the operational environment of the warfighter. Advanced Topics highlights new and developing special topic areas, including mathematical applications fo combat modeling; combat modeling with high-level architecture and base object models; and virtual and interactive digital worlds. Featuring practical examples and applications relevant to industrial and government audiences, Engineering Principles of Combat Modeling and Distributed Simulation is an excellent resource for researchers and practitioners in the fields of operations research, military modeling, simulation, and computer science. Extensively classroom tested, the book is also ideal for courses on modeling and simulation; systems engineering; and combat modeling at the graduate level.
An assessment of combat modeling & simulation technologies. Discusses simulators which allow military forces to practice & train in situations which would be too costly or risky to practice with real weapons. Chapters include: preparing for the next war; recent developments; simulators; types of simulations; the evolution of distributed interactive simulation; SIMNET; fidelity, fog & friction; verification, validation, & accreditation; standards for DIS scalability & scaling; funding for DIS systems. Graphs, charts, & photos.
As defense budgets decline and traditional defense industry supplies downsize and consolidate, many believe that the Department of Defense (DoD) must continue to increase its business activities in the commercial marketplace. This thesis is an examination of one such venture, as a result of acquisition reform, that explores the viability of using commercially produced vehicles for military use in the Department of Defense as light tactical trucks. The National Automotive Center (NAC) has initiated a program called Commercially Based Tactical Truck (COMBATT) that identifies dual-need/dual-use automotive technologies within the Defense Department and commercial automotive industry. This innovative approach is to adapt a modified commercial pick-up truck to perform some of the missions now assigned to the High Mobility Multipurpose Wheeled Vehicle (HMMWV). An economical analysis is presented to determine if the procurement of COMBATTs would be cost effective in augmenting the current light tactical vehicle fleet of HMMWVs. Research includes analyzing production cost and anticipated operation and support costs. Additionally, a cost-effectiveness analysis is performed on the program. COMBATT is shown to reduce the cost of developing and procuring and maintaining a light tactical wheeled vehicle. Recommendations are made for the Army's future buying strategy for its Light Tactical Vehicles. It is concluded that the services should meet their Light Tactical Vehicle needs with an appropriate mix of HMMWVs and COMBATTs.
Modeling, simulation, and analysis (MS&A) is a crucial tool for military affairs. MS&A is one of the announced pillars of a strategy for transforming the U.S. military. Yet changes in the enterprise of MS&A have not kept pace with the new demands arising from rapid changes in DOD processes and missions or with the rapid changes in the technology available to meet those demands. To help address those concerns, DOD asked the NRC to identify shortcomings in current practice of MS&A and suggest where and how they should be resolved. This report provides an assessment of the changing mission of DOD and environment in which it must operate, an identification of high-level opportunities for MS&A research to address the expanded mission, approaches for improving the interface between MS&A practitioners and decision makers, a discussion of training and continuing education of MS&A practitioners, and an examination of the need for coordinated military science research to support MS&A.
Vehicle weight reduction is an effective strategy for reducing fuel consumption in civilian vehicles. For combat vehicles, it presents not only an important opportunity to reduce fuel use and associated logistics, but also important advantages in transport and mobility on the battlefield. Although there have been numerous efforts in the past to reduce the overall weight of combat vehicles, combat vehicle weight has continued to increase over time due to new threats and missions. On December 8 and 9, 2014, the National Academies of Sciences, Engineering, and Medicine held a workshop to explore opportunities in lightweight materials for armored vehicles. This was the ninth workshop in an ongoing series for the U.S. military on materials and manufacturing issues. The workshop discussed future advances in weight reduction by materials substitution for vehicles, including such topics as armor, structure, automotive parts, and armaments. This publication summarizes the presentations and discussions from the workshop.
A live, realistic environment has always been the preferred medium for military training. However, numerous considerations such as safety and constrained resources, along with technical advances, continue to make virtual and constructive simulations attractive as supplements to live training -- so long as these alternatives can offer resource-saving benefits. In fact, virtual simulations are currently capable of supporting many individual and an increasing number of collective tasks required for training our armed forces. However, there are significant limitations that reduce the effectiveness of virtual training simulations, and stand as roadblocks to a seamless objective LVC capability. Most virtual simulations focus on training an individual Warfighter on one specific battlefield operating system. They do not enable small unit leaders and commanders to effectively manage the integration of that system into a combined arms fight. While standards of interoperability exist, networking these separate virtual devices together to enable combined arms team training requires a platoon of civilian technicians and weeks of modification. Geographically distributed events present major hurtles. The specificity of virtual terrain databases which are based on the individual requirements of their system, preclude a fair-fight with other databases of the same geographic terrain. Some of these limitations are technical in nature and will be addressed through advances and focused research in the field of virtual simulation. Others are based on current technical architectures, stove-piped requirements, and the lack of common synthetic environment products. This paper examines current capabilities and suggests requirements necessary for future virtual simulations to enable the LVC vision.
Previous studies have shown that the Department of Defense (DoD) and the military departments have historically underestimated the cost of new weapon systems. Quantifying cost growth is important, but the larger issue is why cost growth occurs. To address that issue, this analysis uses data from Selected Acquisition Reports to examine 35 mature, but not necessarily complete, major defense acquisition programs similar to the type and complexity of those typically managed by the Air Force. The programs are first examined as a complete set, then Air Force and non-Air Force programs are analyzed separately to determine whether the causes of cost growth in the two groups differ. Four major sources of cost growth were identified: (1) errors in estimation and scheduling, (2) decisions made by the government, (3) financial matters, and (4) miscellaneous sources. Total (development plus procurement) cost growth, when measured as simple averages among the program set, is dominated by decisions, which account for more than two-thirds of the growth. Most decisions-related cost growth involves quantity changes (22 percent), requirements growth (13 percent), and schedule changes (9 percent). Cost estimation (10 percent) is the only large contributor in the errors category. Less than 4 percent of the overall cost growth is due to financial and miscellaneous causes. Because decisions involving changes in requirements, quantities, and production schedules dominate cost growth, program managers, service leadership, and Congress should look for ways to reduce changes in these areas.