advanced energy vehicle
DESCRIPTION
Advanced Energy Vehicle. System Analysis 3 Reference: AEV Lab Manual System Analysis 3 Grading Guidelines. FINAL DESIGN. AEV Project Objective (Problem Definition). Initial Concepts (Brainstorming). experimental Research. (Programming). (System Analysis). PT 1 PT 2 PT 3 PT 4. - PowerPoint PPT PresentationTRANSCRIPT
First-Year Engineering Program
Advanced Energy Vehicle
System Analysis 3
Reference: AEV Lab Manual System Analysis 3 Grading
Guidelines
First-Year Engineering ProgramAEV Project Objective(Problem Definition)
INITIAL CONCEPTS(Brainstorming)
EXPERIMENTAL RESEARCH
ANALYZE
DESIGN DECISION
RESEARCH
COMPARE
FINAL DESIGN
Present AEV Design
PT 1PT 2PT 3PT 4
(System Analysis)(Programming)
First-Year Engineering Program
Lab Objectives The objectives of this lab are:1. Become familiar with propulsion system
efficiency.2. Become familiar with the wind tunnel and
thrust stand equipment.3. Conduct wind tunnel testing on electric motor
and propeller.4. Conduct analysis of wind tunnel testing
results.5. Update propulsion efficiency performance
characteristics.
First-Year Engineering Program
EquipmentAEV User Manual – System Analysis 3 Power Supply
(Motor Controller)
Wind TunnelSpeed Controller
Thrust Stand Data Acquisition (DAQ) System
Thrust Stand
First-Year Engineering Program
Lab GoalAEV User Manual – System Analysis 3
The goal is to determine how efficient the propulsion system is by
1. Setting the input power supplied to the motor, and
2. Measuring the power output generated by the electric motor and propeller
First-Year Engineering Program
AEV Energy Analysis AEV User Manual – System Analysis 3
Recall that the propulsion efficiency of the AEV velocity and propeller RPM (or the non-dimensional propeller advance ratio parameter)
Therefore, we need to be able to control both AEV velocity and propeller RPM throughout a range in order to determine the efficiency characteristics of the propulsion system!
How can we do this!?!
First-Year Engineering Program
AEV Energy Analysis AEV User Manual – System Analysis 3
Wind Tunnel!
We will use a wind tunnel to set the simulated AEV velocity and range the propeller RPM!
First-Year Engineering Program
AEV Energy Analysis AEV User Manual – System Analysis 3
Make sure to follow the Lab Manual carefully to set up the proper configuration for your AEV i.e. Puller (Tractor) or Pusher configuration
See next slides
First-Year Engineering Program
Configuration Selection
Puller (Tractor) Configuration Pusher Configuration
In the lab procedure, take careful notice to;• propeller orientation on the electric motor• motor power supply wiring
First-Year Engineering Program
Proper Propeller Orientation
For either Puller or Pusher Configuration -When looking at the propeller (i.e. AEV) from the front (strain gauge base):
• The propeller number designation should be visible• The propeller should be rotating counter-clockwise
Visual Confirmation of Propeller Orientation
Propeller number designation
Counter-clockwiserotation
First-Year Engineering Program
AEV Energy Analysis AEV User Manual – System Analysis 3
You will be setting the power supplied (input) using the power supply and recording the voltage and current supplied to the motor.
Where V is the voltage
IVPin
First-Year Engineering Program
AEV Energy Analysis AEV User Manual – System Analysis 3
You will be using the thrust stand to measure the thrust of the propulsion system
And wind tunnelvelocity to calculate Power Available (output)
Strain Gauge
+ Thrust Direction
Motor Mount
Motor Set Screw
vTPout
First-Year Engineering Program
AEV Energy Analysis AEV User Manual – System Analysis 3
Once testing is complete and the power supplied and available is recorded and calculated, you can determine the propulsion system efficiency for your AEV motor and props
%100in
outsys P
P
First-Year Engineering Program
AEV Energy Analysis AEV User Manual – System Analysis 3
The efficiency can be related to the non-dimensional parameter from the known wind tunnel velocity set and the variable RPM
The RPM for the tunnel testing, as function of the supplied voltage, can be determined with the following trends:
29.9233903.26498.1657
2
3
VRPMVRPM
inch
inch
First-Year Engineering Program
System Analysis 3 LabLab Activity
Follow AEV Lab Manual and Lab Procedure Guidelines
Team: Print hard copy of the Wind Tunnel Testing
Results spreadsheet Select propeller and motor configuration Conduct wind tunnel tests through voltage range
(2.5V – 6V)
Individual: Record data into the Wind Tunnel Testing Results
spreadsheet Analyze results