REVIEW OF ASSIGNMENT #3. ARES Channel Wing HPV (3/8 submitted on time). ARES: GOAL AND OBJECTIVES. Project Goal:
PowerPoint Slideshow about 'REVIEW OF ASSIGNMENT #3' - kamala
An Image/Link below is provided (as is) to download presentation
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Device should withstand gusts of wind under normal working conditions
Since the AED will be subject to environmental conditions, and thus must be able to withstand high winds and gusts
Device should be tuned to operate at maximum efficiency under the most common wind speed for the present location
This is different from maximizing the power curve with respect to belt tension and wind speed because it is taking the location’s characteristics and tuning the belt to that specification rather than finding the specific frequency of the belt that will generate the most power
On 2nd bullet, consider this subtle difference of wording:
“Device should be tuned to operate at maximum efficiency…”
“Device should be tunable to operate at maximum efficiency…”
As you learn more about the power-electronics system, add more specifications
The goal of the project is to demonstrate the potential uses of a channel wing aircraft. Channel wing craft possess the potential to take over many, simple roles that would otherwise be filled by expensive and maintenance-intensive rotary-winged craft. It is our intent to prove that channel wings are a viable alternative to helicopters for many roles, primarily by demonstrating controlled VTOL capability.
Too many words – shorten this. Can write as much as you like in a report, but want objective as tight as possible
Channel Wing Lift Validation (what does validation mean, is this a goal?)
Design Prototype Aircraft
Design and Construct Prototype Wing For Testing Purposes
Design and Construct Complete Working Prototype
Perform Flight Tests Using Prototype Model
Refine Prototype Through Wind Tunnel Tests and Construct Dedicated VTOL Aircraft
One of the greatest obstacles we discovered when trying to perform a simple analysis on a channel wing aircraft is that we had no idea what span to use. We have constructed a 9 in straight wing, a 14.15 in straight wing and a 9 in channel. We will put all three models into the wind tunnel and by comparing the data we will obtain a dimensionless scaling parameter. This will enable us to satisfactorily approximate a channel of a given diameter to a straight wing of a given span for the same chord.
Great plan, but where is the specification?
Is the specification that a channel wing with 9 inch channel must produce the same aero-forces as a 14.15 inch wing?
I actually like this better as a project objective: “approximate a channel of a given diameter to a straight wing of a given span for the same chord.”
The curves for the 9 in and 14.15 in wings will be compared for consistency. Once we have determined that they can be trusted, we will measure the actual lift force of the channel itself. Since we will know every variable in the lift equation except the span, we can calculate its effective span.
Units: Dimensionless Parameter and Span (m)
Weak writing… how will you determine if they can be trusted? Where does ‘trust’ fit in?
If you trust the curves – then measure lift force?
I know what you are trying to do here, but it needs to be articulated more clearly
This is the main focus of our project. The ability of a Channel Wing to perform VTOL was speculated upon in the 1950’s during the original Channel Wing tests. Since then, several research houses such as the Air Force and Georgia Tech have also suggested that Channel Wings are capable of VTOL. As of now, no one has ever performed this feat and documented the act. The potential of creating a fixed wing aircraft that can perform VTOL is what drew us to this project from the start. We plan to VTOL the aircraft in as light a wind as possible, preferably indoors. The first few trials will be tethered with the remaining trials un-tethered. The maximum altitude at which we will fly vertically and/or hover is dictated by what controller and transmitter we ultimately obtain.
Awesome history lesson – great motivation for your project!
Where is the specification?
Specification: The Florida Tech Channel Wing Prototype Airplane Shall be Capable of Vertical Takeoff
Calculate Lift of channel and Thrust of Prop/Motor combo. Calculate angle between the two forces that makes the resultant of those forces equal to the weight of the aircraft. We are aiming for highest L0/T0 possible.
Units: Degrees (°) and Force (N)
Where do degrees fit into this metric?
Is the metric actually non-dimensional, L0/T0 = Force/Force