Research for Computer Models

The CNA 50 Nuclear Exchange Model is a war game model based on the CODE 50 Model produced by the Lambda Corporation. It permits a 3-strike exchange between 2 opponents. Each of the first 2 strikes may be either counterforce, countervalue, or a mixture of counterforce and countervalue, as desired. The third strike is always a countervalue strike. The assignment of weapons to targets in each strike is made in an inner calculation, using a Lagrange multiplier method. The calculation procedure for CNA 50 is presented as the step by step logical sequence of equations and operations that are necessary to control the data and to calculate the desired parameters. Flow charts and a listing of the associated computer program are included. See also CRC 128 & CRC 132.

In this paper, the reliability of a complex system is investigated. Special cases of the system include the 'spare parts' or 'standby redundancy' problem and the 'repair' problem. Also included in the system is the opportunity for 'cannibalization'. A theorem is given indicating the proper use of this activity. The spare parts problem and the repair problem are analyzed separately. Methods of combining the two analyses are then given in order to obtain bounds and approximations to total system reliability.

This paper describes a simulation model which can assist a commander faced with decisions of what distance to station a ship from an unloading point ashore, how many helicopters to use for the unloading, and how to group the participating helicopters.