Load Definition and 1000 Threads

On My Knees Need Help! to transport a load of 1kg up a ramp. Homework Statement Your group are required to design a transporter, A, which will be required to transport a load of 1kg up a ramp. The dimension of the ramp is shown in the figure below. The requirement of the transporter are: 1...

Can someone explain to me why the torque due to tension is taking from the roller instead of at the end of the beam. If you were to take it from the end of the beam you would also need to take the torque created by the bending of the cable. This is obviously more complicated. It just...

Homework Statement The problem statement is attached to the image. Homework Equations ƩFx = 0 ƩFy = 0 ƩMa = 0. The Attempt at a Solution So I summed the forces in both x&y and found the resultant force to be = -48i -36j [N]. I summed to moments and got -308N*m, but I am not sure...

Homework Statement A screw jack that is used on cars whenever tyres are changed by the owner. The screw moves though a distance equal to its pitch whenever the effort lever ( jack handle) is given a complete turn. If the length of the jack handle is 24cm, the pitch is 2mm and the jack is...

I've got a situation where I'll be placing a load (a vacuum pump) on two separate beams. Basically, the pump attaches to a machine with a bolted flange. I'm wondering what would happen if we removed all the bolts except for the top and bottom one and let the pump hang...what the bending...

Hey guys! I'm brand new to the forum and getting back into electromagnetics again. I had a question on one of my homework problems Homework Statement If a wire with a diameter of 0.0254m is carrying a DC current of 1000A, how much power is delivered to the 100ohm resistive load in the loop...

hi, i am a beginner of this forum. i am not really sure how to use this forum actually. i would like to ask, how to find euler buckling load? what is the formula i need to use?

Homework Statement A mild steel beam has a solid square cross section of 100mm and is simply supported by two supports 3m apart. calculate the dead load that can be safely supported when applied to the middle of the beam? Homework Equations The Attempt at a Solution given data...

Easy question Have a 5ft x 5ft x 5ft structure made from 3/8 carbon steel AISI 1018 I think What is the max load this thing can take? What's the formula? Stress=F/A F=Stress*A? Do I use the Modulus of Rigidity? Elasticity? Where can I find these values? thanks

I am trying to use a 0-5000 lb load cell with an Arduino. My issue is the 10 bit input on the Arduino. The load cell will actually be pre-loaded to about 3800 lbs. I just need to measure up to a couple hundred pounds difference. The load cell is a standard 4 wire and measures the difference...

Homework Statement Calculate the power transferred when Vi(t) = 50 cos (4π 10t) in the attached figure. Homework Equations P(load) = |V(load rms)||I(load rms)|cos(phase(V)-phase(I)) The solution must be P(load) = 3.82 W. The Attempt at a Solution I've calculated the Thevenin...

Hey there... We are working on one DC motor after it was overhauled. DC Boom Motor 100 KW for Portrek Crane We have performed Servicing, Re varnishing,Commutator skimming undercutting Setting of Brush.and test the motor on no load.Motor was running perfect without sparking. When...

Homework Statement A winch is used to raise a 200 kg load. The maximum power of the winch is 5 kW. Calculate the greatest possible acceleration of the load when its speed is 2 ms^1, and the greatest speed at which the load can be raised. Homework Equations The Attempt at a Solution...

Hi all. A transformer is driven with a square wave pulse. The transformer has three secondary coils all in series, a diode is placed between two of them which is forward biased during the on time. The coils are used to charge a capacitor and limit current. When the transformer is pulsed...

Homework Statement 1. R = 470 ohms. Connect a jumper wire between points A and B. Measure the voltage across the load resistor. Explain why the load voltage with a shorted load is zero using Ohm's law. 2. Remove the jumper wire and open the load resistor. Measure the voltage between the AB...

Hi Guys, I'm having real difficulty trying to understand shear force and bending moment diagrams - both cantilever beams and supported ones like below. I've given it my best shot to solve the reactions at the points and would greatly appreciate any help on how to form the diagram and the...

Homework Statement 1.What is the formula to calculate the bending moment of a beam subjected to UDL? 2.What is the formula to calculate the bending moment of a beam subjected to point load? Homework Equations Bending moment (UDL) = WL^2/8 (Kg-mm or Kg-m) Bending moment (point load) =...

What all the parameters to be calculated to find a vertical standing beam subjected to axial loading stands without buckling or stands stable? My HW problem has a theoretical question, a vertical beam is fixed on both ends. Loaded on the top with axial load. Show that with an example...

Here is my timetable: [PLAIN]http://img171.imageshack.us/img171/5438/ubc.png I have 25 hours or classes for my first term and 26 hours for my second term. HOWEVER the biggest problem with this is that I have 5 courses for my first term and 7 for my second. Do you think I can handle 7...

Hello, I was just hoping if someone could explain to me the reason why load transfer occurs on a car during a turn. I understand why this is so for braking/accelerating, but not for cornering. Thanks for the help.

Hi guys, Can someone please tell me how to do load balancing using parallel generators with an avr micro-controller? What should be the approach for load balancing? What would be the basic idea to achieve load balancing? Thankyou.

Basic Load Resistance?? I'm a high school science teacher. I have a lab activity that explains how to measure the current v. voltage characteristics for a solar cell. Finding the load resistance that provides the maximum amount of power generated is also covered. Question: What are the...

i want to generate electricity from piezoelectric load cell by application of load on it, but i don't know which type of cell to use and from where to get it? i want good efficiency, please help me out.

Hi How can I calculate the Coulomb friction load torque of a rolling spear on a surface with a coulomb friction coefficient of 0.1? Other details: Mass: 1Kg Radius: 0.1m Thanks in advance

Hello, for my next year I will be taking the following math courses: first semester: differential equations ( honours version ) "advanced calculus" ( spivak's calculus on manifolds course ) complex analysis algebra ( groups, rings, fields ) second semester: continuing the...

The motor-generator will be used to pull a load up a mountain side/steep incline on a rail system, the load is between 10 and 300 tonnes, its for a gravitational potential energy storage system. Excess electricity pulls the load up the incline, when there is demand for electricity the load is...

Hi everyone, I'm working on load distribution of what to be put on a platform. The platform will be rotated by the wheels placed at the circumference of the platform. The loads that need to be put are the optical components which have mass of 1 ton which will cover 8 m x 8 m area and...

Homework Statement The problem is in attached. Desgining basic beam Homework Equations M = E*I(d^2*w/dx^2) slope = E*I (dw/dy) = integral of E*I(d^2*w/dx) + c1 deflection = E*I * (w) = double integral of E*I(d^2*w/dx) + c1x + c2 ΣM*= 0 ΣFx = 0 ΣFy = 0 Yb = ΣAY / ΣA I =...

I am a math student at Queens College and so far I have taken the freshman calculus sequence up to multivariate calculus, calc based probability, discrete math, linear algebra I, and ordinary differential equations. Right now I am registered for the following classes for the Fall '11...

I'm joining a flange and a cap using 9 bolts with a steel gasket placed in a 'o' ring. To ensure that the joint is leak proof, I need to calculate the load distribution in the area between two bolts for a given torque in the bolt[please refer to the figure, where the lines indicate the area...

A slotted line used on a 150ohm lossless transmission line connected to an unknown load impedance, ZL. The voltage standing wave ration is found to be equal to 3. The distance of the first voltage maximum from the load is found to be 9 cm, and the first voltage minimum is located at 3 cm from...

Dear native English speaking professionals! Would someone please advise on the term "gross weight load" - is it possible to use it for gravity force of a fully loaded railcar? I use it in the following context: "Estimated vertical force on one chord section is assumed to be equal to...

Hello, I have a question. How do you design a buffered band pass filter with a resistive load of infinity? I have a feeling that a resistor with a resistance of infinity is an open circuit. Although how can this be implemented in a type of filter seen in the attachment? Thank you.

I am trying to understand how a PFN (Pulse Forming Network) could charge a capacitor to a high voltage and I have some questions first. Is there any type of voltage multiplying PFN which does not use switches or spark gaps? (The only type I have seen is the Marx type which uses either...

Homework Statement There is a structure with four legs. each leg is 6" x 6" square. The bottom of each leg is 6"W x 6"L x 3/4" H. Each leg has a foot which is 4" x 4" x 4". The foot is placed in the center of the leg. The question is how much weight can the legs support before the bottom of...

i have to design a journal bearing for a vertical motor shaft. what loads act on these bearings? since the shaft is axial, are they any loads that act on the bearing. here i am talking about journal/plain bearing, not the thrust bearing which supports the vertical load. what type of failure we...

Homework Statement Determine shear force at point D of Beam http://tinypic.com/r/339m5b6/7 Homework Equations Sign conventions for cut at d when considering LHSFBD M = xFy - yFx - cross product... The Attempt at a Solution I've found the reaction forces by finding the sum of moments...

why do we require delta and star load connection ? thanks.

I feel this is a very simple question, but I can't seem to wrap my head around it. For example, if you have two 1.5 volt batteries in series and a load of 100 ohms then the total voltage is 3 volts and the current is 30mA because I=V/R. If you have two 1.5 volt batteries in parallel then the...

Homework Statement Calculate the effort required to lift a load of 1962N using a third order lever with load 5m distance from effot and fulcrum 1m distance from effort. Homework Equations i used the following, large distance x small effort = small distance x large effort The...

Homework Statement During the weight-in of a truck it's been determined that the load of the weight acting on the front axis and back axis are 18 [kN] and 12 [kN] correspondingly, when the truck is empty as shown in the diagram. The max load allowed on every axis is 40.Calculate the size of...

Hi, all. (please see the attachment in the next post) I'm re-using an old power converter in a design, which unfortunately requires a rather large minimum load to properly regulate. I can't alter this converter; I have to use it as-is. But, I can monitor the output, and add circuitry as...

Homework Statement check out: so this is for a bridge project right and that picture is simply a basic design just enough to get the jist to answer my question. what I am wondering is, if 20kg's was applied to the very centre of that loading plate - is it fair to say that each of the long...

BLUF: Is it possible to mimic a solar loading environment solely in a temperature chamber and, if so, how? We have an 6061 Aluminum box with a known heat load inside. It needs to be subjected to a solar load IAW MIL-STD-810G, Method 505.4, Proc I. Essentially, it is a 24-hour exposure cycle...

Homework Statement An object of weight 8526 N hangs at an angle of 5.0° when the crane’s trolley at point P moves to the right with constant acceleration, as shown in the diagram. Calculate the acceleration of the trolley and load. Homework Equations 9.8 / tan (90-5) = 0.857 m/s^2...

Hi, Have been using ANSYS Mechanical to conduct some analyses, but am now moving to ANSYS APDL to investigate the effectiveness of Solid-Shell elements. However, I've run into a problem. I can't figure out how to apply a load to an area! I have been playing around with the SURF154...

Having a hard time with failure theories. Beam length 20 feet, 6"h x 4"w. sigma yield is 40 ksi. How to calculate the maximum distributed load the beam could carry using von Mises and Tresca failure theories. I have my shear and moment diagrams drawn and know they are right. I found that...

Hey Guys, here is a skeleton for an exercise I need a help with: In this Problem we have a beam EF which is pin-supported at E, a Rod CD which is enrolled by a spring ( spring constant =k) and a rod AB (AB is touching the ground, I forgot to draw it). If we heat the Rod AB what will...

I was wondering why it is when you use the electricity from an electrical generator, it bogs the generator down? Shouldn't the draw off of electricity negate any sort of back flow there by making it easier on the generator to function?

We have a sensor in the lab that measures two quantities and uses two different sampling rates. All four of these vectors are saved into the same text file. How can I load this into MATLAB when it is non-rectangular? Thanks for your help.