A design is a plan or specification for the construction of an object or system or for the implementation of an activity or process, or the result of that plan or specification in the form of a prototype, product or process. The verb to design expresses the process of developing a design. In some cases, the direct construction of an object without an explicit prior plan (such as in craftwork, some engineering, coding, and graphic design) may also be considered to be a design activity. The design usually has to satisfy certain goals and constraints, may take into account aesthetic, functional, economic, or socio-political considerations, and is expected to interact with a certain environment. Major examples of designs include architectural blueprints, engineering drawings, business processes, circuit diagrams, and sewing patterns.The person who produces a design is called a designer, which is a term generally used for people who work professionally in one of the various design areas—usually specifying which area is being dealt with (such as a fashion designer, product designer, web designer or interior designer), but also others such as architects and engineers. A designer's sequence of activities is called a design process, possibly using design methods. The process of creating a design can be brief (a quick sketch) or lengthy and complicated, involving considerable research, negotiation, reflection, modeling, interactive adjustment and re-design.
Has anyone here happened to design a remote control...
I am just into it...so i am looking for information to understand how can we go about doing it..
I have to develop a mechanism with which to tension shade sails (its basically material tensioned between four posts to provide shade). I've got the mechanism going, but for the failure analysis, I need to calculate the peak tension in the shade sail. This is my information:
1. Largest shade...
Hi,
I am designing a solenoid driver ckt. The solenoid can hold a max force of 2.75lb. If I want my ckt drives the solenoid with max force, what current or power the ckt need to draw?
Thanks for any help.
Mike
I have a Buick Grand National. There is a company that sells a kit that consist of 4 bars connected in the back seat area of my car. http://img.photobucket.com/albums/v625/BrockBlackZ/braces1.jpg" . I wanted to get your opinions on what you think would be better for rigidity (round hollow or...
Hey, I have some problems with my synchronous counter. Here is what I got. sorry for the big and bad quality of the pic. My scanner sucks :(
Here's the karnaugh map. I need to simplify them and use only NAND and inverters if needed.
http://img101.imageshack.us/img101/7335/hw4na.jpg
I need to...
Hi!
I want to design a simple, frequency synthesizer that synths from 1KHz to 16KHz is 1Khz steos. The required frequency should ideally be chosen by a "switch" of such.
Does anyone have, at least, some ideas or uselful links. I've googled this but I've been presented with rather complex...
Hi everyone. There are 2 questions i cannot solve here. So i am hoping someone here can help me out. Here are questions:
(1) Design a synchronous counter using J-K flip flops which will count
through the sequence 0, 2, 4, 6, 8, 10, 12, 14, 0.
(2) Design a synchronous down counter using...
Hi everyone,
Im designing a new device for openeing bottle caps. But I am stuck, :cry:
basically I have a second class lever (pivot at one end, effort at the other and weight in the middle). The weight is 72.21N the overall length from the effort to the fulcrum is 64mm and the length from the...
Hi everyone,
Im designing a new device for openeing bottle caps. But I am stuck,:cry:
basically I have a second class lever (pivot at one end, effort at the other and weight in the middle). The weight is 72.21N the overall length from the effort to the fulcrum is 64mm and the length from the...
Hi Experts :smile:
Finally I think I found the correct space to assist me from experts.
I need urgent help from u pp about the Cascade Cooler.
We r doing a project in our college as final year BE, Mechanical students in India. We have choosen to Design the Cascade cooler which is used...
Ok I'm designing a simply system for a three input game show buzzer. I'm thinking about using a demux chip that simply handles analog voltages like the 74hct4051. However I need to only allow the light for the first person that clicks their switch to be displayed. A microcontroller could be used...
Need help designing ADC system - URGENT!
I have to design a system where an analog input is converted to a digital output which will be sent to a parallel digital data bus using a ADC chip.
the specifications are that the input should be between 300-3200Hz with a digitisation error of 1%...
I am designing a three phase permenent magnet generator , and have a question.
as a magnet pair passes over a coil , inducing a voltage, that voltage is most dependent on ?
1) the angular velocity ( that's a given)
2) the pole strength
3) flux density
4) energy product.
5) thickness of...
I'm planning on building a small ski lift for my kids. It's been 20 years since I've taken a physics class so I'm lucky to remember what gravity is. :blushing:
Here's a poor image of the hill. I would like to know the following:
A) how much lbs of tension is against the lift wire?
B)...
hello everybody,
my teacher:mad: wanted me to design a few circuits like these;
1) an electronic termometer,
2) a circuit that switches on the lights and pulls the pitches in evenings
by using circuit elements like LDR and NTC.
pls help me
:rolleyes:
I have to design a beam for my Materials Class design project to be tested on a univ. bending machine. We have to be within 2.5" by 5" in max size, and 24" long. I wrote a MATLAB prog to calculate every possible configuration to optimize what sizes to pick for a block, a T beam and an I beam...
Is there a way I can design a broadband reject filter using a lowpass filter with cutoff frequency f_1 and a highpass filter with a cutoff frequency f_2,\ (f_1 \ll f_2) , combined in parallel with a summing amplifier? My current design yields a response that isn't a broadband, there is a...
The new design here made me want to redesign my boring standard phpBB look. How would I go about testing the new look without having to actually make the changes on the site? A sort of demo. In the admin panel for phpBB, there are certain basic fields I can edit to change the basic color scheme...
Hi for school i need to design a balsa wood beam. Winner is judged be strength to weight ratio.
i have searched around and found all the stress and strain values for balsa wood at different densitys etc...
now my dilemma is that i have to use formulas to design this beam before it is...
friends i am making a stop clock.iwant to add certain extra ordinary and good features in itwhich are technicalyy feasable.if anybody has some noble idea in this regard please answer me.
Does anyone, by chance, happen to have some good, practical references in the design and preparation of piping systems for use in pure oxygen service? My ASTM references are about as close to worthless as it can get. Thanks.
Hey friends,
My question is that why only 2-stroke & 4-stroke engines have been
made?Why not 6-stroke or 8-stroke?Is it possible to have such engine? Any
useful suggestions are welcome.
Is there any software out there where you can basically design a new bathroom or living room or whatever? And i mean like, drywall, tiling, plumbing, cabinetry and all that kinda stuff and not a bed or a curtains or whatever. Is there any software that can do this rather well? Sounds like some...
I am doing a project in Design & Technology and intend to design a product that is to be used by Playstation 2 (or other consols) users.
I have a few questions, which I would be very grateful for if I get a few replies:
Do you have a Steering wheel and pedal that you use to play car games with...
Is there a program for designing circuit boards that does not require knowledge of circuits? Were you can just specify what you want the circuit to do and the program designs the circuit board for you.
Hi guys,
Im thinking about designing an intake manifold for my car for fun. I don't necessarily want to make it or anything but I think it would be a good project to do.
Can you guys recommend me some books or software that would help me out?
I don't have much of an idea with CAD, but...
This post is cross listed at the below url
https://www.physicsforums.com/showthread.php?t=73985
I'm attempting to use MATLAB to solve an electrical engineering problem dealing with controls...
I'm trying to design a transfer function which will control a servo motor using what is often...
i realize that this is a common question, but i have a partner for this assignment and she's doing something different than me. i just want to make sure I'm not off base
the assignment is to design a bungee ride. the problem involves someone being launched from 150 ft above the ground and...
You're designing a toy rocket to be launched by a spring. The launching apparatus has room for a spring that can be compressed 14 cm, and the rocket's mass is 65 g. If the rocket is to reach 35 m altitude, what should be the spring constant?
U_o = 1/2*kx^2
K_o = 0
well work is being stored...
I am doing a project for my physics course...I have to design a device that uses electromagnetism.
I'm thinking of doing something "different" rather than the boring bells/radios etc..
Would a small-scale model of a maglev train be feasible in everyone's opinion? I am planning to build a...
Hello! We've begun a new project in our Physics class, and the objective is to walk on eggs with shoes designed by each group. My problem is designing the shoes. I have learned that we need to increase the surface area of the shoes to reduce the pressure, but I don't know of any ideas on how to...
A front wheel driven trike to be exact, how would i start designing
the suspension geometry, i have in mind an ultra light vehicle
driven by the most economical engine "within reason", and street
legal, maximum speed 70 mph, to carry two persons with some
comfort. the driven wheels would be...
For a class, I need to design a basic overhead projector. I know a little bit about optics from an algebra based physics class I took a while back, but I don't remember most of the specifics, such as what kinds of lenses flip objects before and after their focal points. I'm also not sure what...
Okay, here's the deal: I am doing an egg drop tomorrow in my physics class. We are allowed only 25 straws, and scotch tape to do it. What would be the most effective structure to use for this?
By the way, my teacher didn't tell us of any limit on the amount of tape we were allowed to use.
Hi all, new guy from CT. We were just assigned a project in physics to build and design a mouse trap car powered solely by the potential energy of a standars mouse trap. The main focus is distance, and so that is what I am aiming for. I have my basic design laid out, as I will attach two...
i am looking for a tool where i can designe degenerate PCR primers.
by the way i have read about degenerate PCR, but find it hard to understand, so please explain these for me;
in standard PCR mixture we have a forward and reverse primer for our target, but how many primers do i need in a...
I am designing a lab to prove that F=ma. However i am only using a spring scale, 1 kg mass, string. I have come up with a procedure where you would attach the mass to the scale and accelerate the unit upward, recording the time it takes the unit to accelerate from 0-1m and the force shown in the...
Two physics students are having a debate about the best way to define a force scale using rubber bands. Each one is trying to convince you to do it their way. They have the following apparatus to use in tests:
A bunch of identical small rubber bands
10N spring scale
meter stick
Joe...
Hello. I am currently working on a project which requires me to deisgn a strain gauge. However, even though I have done quite a lot of research, I am still unable to find the answers to the questions that I have. They are:
1) How to decide the resistance (decided by the grid length as...
Hi I'm designing a torque wrench. But i need some help.
I have a drawing torque3.jpg
the gear connects to the socket. If I'm putting 300ft/lb torque on a nut using the socket connected to the gear. and the gear connection to the handl thru the gear locker, and the gear locker can push...
Hi I'm designing a torque wrench. But i need some help.
I have a drawing torque3.jpg
the gear connects to the socket. If I'm putting 300ft/lb torque on a nut using the socket connected to the gear. and the gear connection to the handl thru the gear locker, and the gear locker can push...
Right now I'm trying to design a tracking chip that is small and convenient. I want it to be able to fit in a pocket. I need help building it and I've looked all over the web for ideas. This is an extra credit project for physics and i would appreciate it if anyone had any idea or plans. Thanks
I've been reading, trying to learn electronics. Everything I've read so far seems to be either components or finished circuits. I want to read about the 'inbetween' process. The 'why' for each step of the design. Why use this battery. Why use that size wire. Why put a resistor here. Why use a...
am to design an experiment showing how magnetic field strength of a magnet varies with its temperature. i know i can use a hall probe to measure the field strength - but how do i vary the temperature, and ensure that this is uniform throughout the magnet?