Attachment_0060_Vehicle_Data_Package_for_Propulsion_System_Rev001.xlsx

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Revision Log

(add additional rows as necessary)

Narrative

VEHICLE DATA PACKAGE FOR DYNAMIC SYSTEM MODELING AND SIMULATION

1.0 INTRODUCTION

This package describes the parametric data requirements for high resolution vehicle propulsion systems analysis. The nature of these methodologies is such that detailed vehicle data is necessary to formulate the models for the simulation to be performed. In order to facilitate the development of propulsion system models of modern military vehicle systems, an attempt has been made here to provide generic data sheets to define the system parameters necessary to conduct any desired simulations. These sheets include the minimal requirements necessary to conduct simulations. Special features or performance characteristics which are not covered by the data sheets need to be described and parameters provided in sufficient detail for high resolution simulations.

2.0 OBJECTIVES

The purpose of this package is to: 1) define in detail the parameters, and descriptions that are necessary to perform high resolution vehicle models using simulation methodologies and 2) provide standardized work sheets which will facilitate vehicle system description and model development.

3.0 RECOMMENDATIONS

As the government deems it necessary, this package will be updated to add data requirements as modeling methodologies and simulation technologies advance.

4.0 DISCUSSION

In order to determine the dynamic response of wheeled vehicles, parametric data that describes the main subsystems of the vehicle must be known. The following data sheets are included to capture that data.

JLTV Oct 2011

&8PREDECISIONAL - DRAFT RELEASE ONLY / Distribution Statement A* - Approved for Public Release; distribution unlimited. (*Distribution Statement A only applies when form is not filled in)

Powertrain Data

JLTV Oct 2011

&8PREDECISIONAL - DRAFT RELEASE ONLY / Distribution Statement A* - Approved for Public Release; distribution unlimited. (*Distribution Statement A only applies when form is not filled in)

Powertrain Cooling System Data

Powertrain system layout (CAD: CREO v5) indicating all heat exchangers in the air flow stream, including AC and electronics cooling, if applicable.

The following data sheets are given as example, please tailor to the proposed approach.

Heat Transfer

Air Flow (CFM) Air dP (Pa) Flow Rate (CFM/GPM) dP (Pa)

Air Flow (CFM) Air dP (Pa)

Air Flow (ACFM) Air dP (Pa)

ECS System

Heat Transfer

Air Flow (CFM) Air dP (Pa) Refrigerant Flow Rate Air dP (Pa)

Heat Transfer

Air Flow (CFM) Air dP (Pa) Refrigerant Flow Rate Refrigerant dP (Pa)

Heat Transfer

Air Flow (CFM) Air dP (Pa) Hot Fluid Flow Rate dP (Pa)

Air Flow (ACFM) Air dP (Pa)

Air Flow (ACFM) Air dP (Pa)

Environmental control system layout (preferably CAD) indicating:

Expected flow volume at each vent location (or test data if available Expected air temperature and humidty at each vent location for:

AC Loads

Crew Heat

Crew

Number of Crew/Dismounts Heat Load (W)

Provide information on expected electronic and interior cooling loads image1.png