Gate 3 - Product Analysis (Group 18) - Revision history

MAE 277 2012 - Group 18 at 00:30, 14 December 2012

2012-12-14T00:30:02Z

MAE 277 2012 - Group 18 at 00:23, 14 December 2012

2012-12-14T00:23:14Z

MAE 277 2012 - Group 18 at 22:45, 13 December 2012

2012-12-13T22:45:45Z

MAE 277 2012 - Group 18: /* Product Archaeology: Product Evaluation */

2012-11-16T22:15:26Z

Product Archaeology: Product Evaluation

MAE 277 2012 - Group 18: /* Product Archaeology: Product Evaluation */

2012-11-16T18:21:18Z

Product Archaeology: Product Evaluation

MAE 277 2012 - Group 18: /* Product Archaeology: Product Evaluation */

2012-11-16T18:19:43Z

Product Archaeology: Product Evaluation

MAE 277 2012 - Group 18 at 06:50, 16 November 2012

2012-11-16T06:50:25Z

MAE 277 2012 - Group 18 at 06:22, 16 November 2012

2012-11-16T06:22:39Z

Show changes

MAE 277 2012 - Group 18 at 06:20, 16 November 2012

2012-11-16T06:20:26Z

MAE 277 2012 - Group 18 at 05:11, 16 November 2012

2012-11-16T05:11:27Z

@@ Line 3: / Line 3: @@
-'''Purpose'''
@@ Line 15: / Line 17: @@
-'''Cause for Corrective Action'''
@@ Line 33: / Line 37: @@
-'''Component Summary'''
@@ Line 380: / Line 386: @@
-'''Product Analysis'''
@@ Line 512: / Line 520: @@
-'''Solid Modeled Assembly'''
@@ Line 546: / Line 556: @@
-'''Engineering Analysis'''
@@ Line 594: / Line 606: @@
-'''Design Revisions'''
 A major design revision that can be made is a change in the blade sets. The RC helicopter currently has two sets of blades, the upper blade set and the lower blade set. This is a common characteristic of a helicopter, where the blades are located above the main body of the helicopter. However, with the advancement of technology, a revision can be made where the blade sets are located at the sides of the helicopter instead of on top of it. These blades would be shorter than the current blades used but will rotate much more faster. This change will make the RC helicopter look more modern, and attract the interest of consumers.

@@ Line 521: / Line 521: @@
-[[File:BalanceBarCAD.png|300px|3D model of the balance bar]]
+[[File:BalanceBarCAD.png|800px|3D model of the balance bar]]
-[[File:InnerShaftCAD.png|300px|3D model of the inner shaft]]
+[[File:InnerShaftCAD.png|800px|3D model of the inner shaft]]
-[[File:TopBladeCAD.png|300px|3D model of one of the helicopter blades]]
+[[File:TopBladeCAD.png|800px|3D model of one of the helicopter blades]]
-[[File:CompleteCAD.png|300px|Physical interaction of components]]
+[[File:CompleteCAD.png|800px|Physical interaction of components]]

← Older revision		Revision as of 22:45, 13 December 2012
Line 559:		Line 559:
	Diagram: The diagram shows the lift produced by the rotation of the blades		Diagram: The diagram shows the lift produced by the rotation of the blades

−	[[File:DiagramOfLift3.png\|~~200px~~\|Lift produced by rotating blades]]	+	[[File:DiagramOfLift3.png\|500px\|Lift produced by rotating blades]]

@@ Line 278: / Line 278: @@
 |Die Cast
 |Holds the lower gear and prevents it from coming in contact with the main frame.
-|[[File:20121116 013125.jpg|200px]]
+|[[File:20121116 171246.jpg|200px]]
 |-
 |Triangle Tabletting

@@ Line 332: / Line 332: @@
 |1
 |Metal
-|Thread rolling
+|Thread rolling/Die casting
 |Assembles and strengthens the parts of the helicopter.
 |[[File:Screw1.jpg|200px]]
@@ Line 340: / Line 340: @@
 |1
 |Metal
-|Thread rolling
+|Thread rolling/Die casting
 |Assembles and strengthens the parts of the helicopter.
 |[[File:28078_483303901714695_1901010389_n-1.jpg|200px]]
@@ Line 348: / Line 348: @@
 |1
 |Metal
-|Thread rolling
+|Thread rolling/Die casting
 |Assembles and strengthens the parts of the helicopter.
 |[[File:18119_483303845048034_331314806_n-1.jpg|200px]]
@@ Line 356: / Line 356: @@
 |1
 |Metal
-|Thread rolling
+|Thread rolling/Die casting
 |Assembles and strengthens the parts of the helicopter.
 |[[File:189701_483303521714733_1478333776_n-1.jpg|200px]]
@@ Line 364: / Line 364: @@
 |1
 |Metal
-|Thread rolling
+|Thread rolling/Die casting
 |Assembles and strengthens the parts of the helicopter.
 |[[File:396717_483303351714750_412698787_n-1.jpg|200px]]
@@ Line 372: / Line 372: @@
 |1
 |Metal
-|Thread rolling
+|Thread rolling/Die casting
 |Assembles and strengthens the parts of the helicopter.
 |[[File:63840_483303261714759_149827352_n-1.jpg|200px]]

@@ Line 51: / Line 51: @@
+|
 |4
-|Carbon Fiber
+|Plastic
 |Injection Molding
 |Each blades on the helicopter rotate to produce lift

@@ Line 126: / Line 126: @@
 |Injection Molding
 |Used as aesthetic and also provides aerodynamics for better flight.
-|[[File:|200px]]
+|[[File:20121116 012612.jpg|200px]]
 |-
 |Tail Decoration
@@ Line 222: / Line 222: @@
 |Injection Molding
 |Stores the batteries.
-|[[File:|200px]]
+|[[File:20121116 013125.jpg|200px]]
 |-
 |Main Frame Decoration
@@ Line 238: / Line 238: @@
 |Injection Molding
 |Protects and stores all the components such as gears, motors main shaft and others.
-|[[File:|200px]]
+|[[File:20121116 013037.jpg|200px]]
 |-
 |Motors A and B
@@ Line 246: / Line 246: @@
 |Die Casting and Injection Molding
 |Starts the rotation and causes the other gears to rotate leading to flight.
-|[[File:|200px]]
+|[[File:20121116 012904.jpg|200px]]
 |-
 |Lower Blade Gear
@@ Line 254: / Line 254: @@
 |Injection Molding
 |Constantly transfers its rotational energy to other gears.
-|[[File:|200px]]
+|[[File:20121116 012819.jpg|200px]]
 |-
 |Upper Blade Gear
@@ Line 262: / Line 262: @@
 |Injection Molding
 |Constantly transfers its rotational energy to other gears.
-|[[File:|200px]]
+|[[File:20121116 012819.jpg|200px]]
 |-
 |Transition Gears
@@ Line 270: / Line 270: @@
 |Injection Molding
 |Changes the speed rate of rotation either stepping up or down the speed.
-|[[File:|200px]]
+|[[File:20121116 012830.jpg|200px]]<br/>[[File:20121116 012838.jpg|200px]]
 |-
 |Die Steel Set Limit
@@ Line 278: / Line 278: @@
 |Die Cast
 |Holds the lower gear and prevents it from coming in contact with the main frame.
-|[[File:|200px]]
+|[[File:20121116 013125.jpg|200px]]
 |-
 |Triangle Tabletting
@@ Line 286: / Line 286: @@
 |Injection Molding
 |Designed to prevent the gears from coming in contact with any part of the frame.
-|[[File:|200px]]
+|[[File:20121116 012757.jpg|200px]]
 |-
 |Front LED Lights and Wiring

← Older revision	Revision as of 06:20, 16 November 2012
Line 383:	Line 383:


	+	Component Complexity Scale:
	+
	+	1 – The component has simple geometric shapes and has no electrical components. The helicopter will work properly without this component.
	+
	+	2 - The components are a bit more complex and are important to the functionality of the helicopter. There is thought put into the designing of the component.
	+
	+	3 - The component is extremely complex/ the helicopter will not function without it
	+
	+
	+	Body Shell
	+
	+	Component Function
	+
	+	The functionality of this component is mainly there to protect the helicopter from collision and keeping the internal component intact. It also serves for aesthetic purposes. There is design on the shell for solely the purpose of aesthetics. This component encounters different type of environments, rain, cold, collision and windy environments. Even though it is not recommend for the helicopter to be used in extreme weathers, the component needs to be able to withstand these environments because users don’t always follow the instructions of a product intended usage.
	+
	+	Component Form
	+
	+	The general shape of the shell is a thin hallow cone. The reason for a cone shape shell to protect the helicopter is for aerodynamic reason, reducing air resistance while flying for maximum speeds while flying. The shell is symmetrical, light weight, and made of plastic. It is primarily 3-D and roughly (11X4.5X5) inches in dimension. The shell weighs roughly a couple grams which is not heavy at all. It made of plastic and there is a specific reason for this. A driving factor in using plastic is for economic reason. Plastic is a bit cheaper to use then metal so it was more practical material to use. The component is coated with a blend of red, black and silver paint. The reason for this coloring is for aesthetic reason, trying to give it a sleep and cool look. The finishing of the shell is smooth and reflective, mainly for aesthetic reasons as well.
	+
	+	Manufacturing Methods
	+
	+	The component is most likely made from injection molding. Evidence that this part is made with injection molding are the parting lines in the middle bringing together three parts. Even though die casting process has parting lines, the shell is made from plastic which make die casting not a suitable choice for die casting. The injection molding is able to achieve more intricate shapes which the shell does have.
	+
	+	Component complexity : 1
	+
	+
	+	Balancing Bar
	+
	+	Component Function
	+
	+	The functionality of this component is to give stability to the helicopter while it is flying in the air. If a strong gust blows, the helicopter will not be blown away with the balancing bar.
	+
	+	Component Form
	+
	+	The balancing bar is a long rod with two equal mass weights on each end of it. The bar is symmetrical for the most part except for the ball and socket joints in the middle which is inversed. The bar is a three dimensional shape with rough dimensions of (13x.75x.50) inches. The balancing bar is not heavy weighs roughly 500grams. The mean is composed mostly of plastic; the ends have a metal weight which is enclosed in plastic. This component has no real aesthetic purpose; it is more of a functionality component then for aesthetics. The bar is black; the reason for this is it that this component does not really have an emphasis for looking good so giving it a neutral color will draw attention away from it.
	+
	+	Manufacturing methods
	+
	+	This part was most likely made from injection molding. There are visible signs of parting lines and riser marks on the component. Same with the reasoning behind the shell, this component is made mostly of plastic, making die casting not viable.
	+
	+	Component Complexity : 2
	+
	+
	+	Lower Main Blade
	+
	+	Component
	+
	+	The functionality of the blade is to lift the helicopter of the ground by rotating and creating lift. The blades are an extremely important component to the helicopter, without it the helicopter would not operate properly. So it needs to be able to withstand all sorts of conditions, wind, extreme weather, and water resistant.
	+
	+	Component Form
	+
	+	The general shape of the blade is a long trapezoidal shape with a curvature. The blade is designed like this to maximized functionality, to lift of the floor. The blade is paired with a blade of the same shape that goes in the opposite direction. The blade is primarily a two dimensional component with a dimension of 10x1 inches. The blade is very light weight weighing only a couple of grams. The helicopter needs to be light weight to maximize flight efficiency so shaving off weight off each and every component adds up. The blades are made of plastic. Plastic is chosen because if the light weight properties also because it’s cheap. This component is here mainly for functionality and not for aesthetics. The blades are black and there is no specific reason for it. The surface finish of the blade is smooth mainly for aerodynamics reasons and minimizing air resistance.
	+
	+	Manufacturing Methods
	+
	+	Like the shell and the balancing bar, the blade is most likely made by using injection molding. It has parting lines and tapered lines. The blades being plastic also suggest that it’s made by injection molding.
	+
	+	Component Complexity : 2
	+
	+
	+	Aluminum Tail bar
	+
	+	Component Function
	+
	+	The function of this component is to connect the tail blades to the body of the helicopter and to give it its structure and shape. The tail bar needs to be sturdy and light weight so it can take a beating also is lightweight so the helicopter can fly.
	+
	+	Component Form
	+
	+	The bar is a long hallow rod that is about thirteen inches in length with a diameter of half an inch. It is made of aluminum because aluminum is a very lightweight material. The bar is very lightweight as expected to make the helicopter as light as possible. The bar is coated with silver coat mainly for aesthetic reasons and to prevent corrosion of the aluminum.
	+
	+	Manufacturing Methods
	+
	+	The aluminum rod is most likely made by methods of drawing from a sheet of aluminum most likely. They cut a piece of the aluminum and then draw it to the shape they desire they harden it so it’s structurally stable. The reason why it is drawing because there are no signs of it being made by injection molding or die casting (tapering or riser marks). It would not make sense to make the rod by using all the rest of the methods either. You can’t use rolling to make a roll; even if you could it would be difficult.
	+
	+	Component complexity : 1
	+
	+
	+	Helicopter Frame
	+
	+	Component Function
	+
	+	The frames function is to join all the components together, like the motor, circuit board, and the rods connecting to the blades. Same as the other parts the frame needs to be sturdy and collision resistant so it does not break.
	+
	+	Component Form
	+
	+	The frame is symmetrical down the middle of its structure. It has no defining shape of its own being irregularly shaped. The frame is lightweight like the shell and the blades to maximize efficiency while flying. The frame is made of plastic and the decision behind it is to make it cheap as possible and as lightweight as it could be. There is no aesthetic consideration put into this because it’s an internal part where it’s hidden inside the helicopter.
	+
	+	Manufacturing methods
	+
	+	This part was probably made by using injection molding. It has parting lines and tapered edges. Like the blade, it’s not feasible to using die cast because it’s not a metal material.
	+
	+	Component Complexity : 2
	+
	+
	+	Main White gear
	+
	+	Component Function
	+
	+	The function of the gear is to translate the motors kinetic energy into the rod connecting to the blades. It holds an important function in the helicopter, without it the helicopter would not fly. The gear performs in the helicopter with lot of moving parts. It needs to be durable and strong enough to withstand the heat that is generated with all the moving parts inside the helicopter.
	+
	+	Component Form
	+
	+	The gear is a circular shape with uniform jagged edges. It is symmetrical with Y shape patterns spanning the radius. The gear has a diameter of 1.5 inches with a thickness of 1/6 inches. The gear is circular shaped because it would not work properly if it where another shape, say a square or a pentagon. It would not turn properly and then the helicopter wouldn’t work. The gear is made mostly of plastic with the middle cylinder being made of medal. The reason that the middle cylinder is made of plastic is because metal has a higher melting temperature then plastic. When the gear rubs against the rod it goes into it would generate heat, so by using metal it won’t melt. There isn’t much aesthetic consideration put into this part, because it’s an internal part so it’s hidden from plain view.
	+
	+	Manufacturing Methods
	+
	+	The gear is most likely made from injection molding and die casting. The plastic part is made from injection molding, there are rise marks on it and it being plastic makes it reasonable to say so. The metal part is made from die casting; it has a simple shape so die casting is possible.
	+
	+	Component Complexity : 1
	+
	+
	+	Screw
	+
	+	Component Function
	+
	+	The screw is meant to hold two components together. Its only function is to hold two components together.
	+
	+	Component Form
	+
	+	The screw is a rod like shape with a cap on one side with threaded length. It is smymmetrical down the middle with the exception of the threading. It is a 3 dimensional component . the component is round because its easiler to fasten a round screw as opposed to a edged one. The screw is made with metal, its made with metal because it’s a stronger material and less prone to stripping when fastening it. It has a coating on it so it would not rust in contact with water.
	+
	+	Manufacturing methods
	+
	+	The screw is made from a subtractive process where it takes a little rod and then grinds off the rod with a machine to give it its threads. Or it can be made with die casting because it is metal and relatively simple to die cast.
	+
	+	Component Complexity : 1

← Older revision		Revision as of 05:11, 16 November 2012
Line 490:		Line 490:

	From a social factor, this change will allow the user control the helicopter more easily in the air as this redesign would increase the speed and maneuverability of the RC helicopter.		From a social factor, this change will allow the user control the helicopter more easily in the air as this redesign would increase the speed and maneuverability of the RC helicopter.
−
−	Thirdly. I would add a component to the helicopter, a camera. The camera should be detachable, easy to set up and remove. With the camera, people who control the helicopter can take photos from high angle.
−	~~Social concern-people can have more more entertainment with the camera on~~