Load Definition and 1000 Threads

I need some help in calculating the load rating for a multi-bar hinge. This hinge is different from a door hinge. It is fitted beneath the windows and can be used for either side-opening of the windows or for top-hung windows (windows for high-rise glazed glass buildings). The hinges are...

Homework Statement Explain if wind on walls and roofs of buildings is considered a pressure or a force? Homework Equations P = F/A The Attempt at a Solution Wind load should be measured in terms of pressure?..but I don't know the exact reason why it is. Does it have something...

3" x3" tube, 3/16' vs 1/8" thick load strength Hello, Any help would be appreciated. After calling umpteen places, and searches, I've found this site, which is a gold mine of info, and thanks for that. I am trying to figure out what the load strength of steel tubing, that is 3" x 3" 3/16"...

This should be a pretty simple but I am having trouble finding the right information. For a 6x6 wooden post for now well say 12' above the footing I need to determine the max load vertical load it can take before it fails. I live in Canada so was looking around Canadian lumber standards and...

Homework Statement A human bone has a youngs modulus of 10^10 N m^-2. It fractures when the compressive strain exceeds 1%. What is the maximum load that can be sustained by a bone of cross sectional area 3cm^2? Homework Equations? F= Y*(change in length/ original length)* cross...

hello, I am no electrical engineer by any means but I've taken up a interest in electronics and whatnot. Now that we have my novice status out of the way here is my problem. I have a GE Medical TEC water chiller, uses peltier junctions to cool or heat the water. It works via a PWM circuit of...

Hi everyone, I'm planning to major in chemistry double minoring in physics and math. Next year I'm registered for a full course load (5 courses) each comes with a lab 3 hours long (except one which is 2hrs). These are all second year courses and they cover material I've never heard of. The...

http://www.harborfreight.com/1-2-half-ton-capacity-pickup-truck-crane-1647.html I bought this truck crane for my father. How could i calculate the force needed on the handle to lift a given load? I could measure it but I am interested in how the math is done. For simplicity i'll assume the...

Homework Statement A horizontal beam 8m long, resting on two supports 1.5m from each end (supports are 5m apart), carries a uniformly distributed load of 25kN/m between the supports, with concentrated loads of 20kN at the left end of the beam, 30kN at the right end, and 40kN in the centre...

I have a question regarding what material type and thickness could support a given load most cost effectively. Weight of the part will also be a factor in the cost due to the wacked out freight charges these days. I have no idea where to locate the information that I need or a formula so...

Homework Statement How would you calculate the reaction / kick load of a cannon / mortar with a Projectile Mass "Mp", Max Pressure Output of initiator/gas generator "Pg", Stroke Length "Ls", and Surface Area of the projectile where force is applied "As"? Homework Equations The...

Homework Statement To find the reaction at A and B. (See image below) Homework Equations Moments and Area The Attempt at a Solution Area of load: (0.3)(6) = 1.8kN Moments about A: -(6)(0.15) + RB(0.6) = 0 --> RB = 1.5kN 4. The error and question I get the reaction force at...

1. A large power transformer has a turns ratio N1 / N2 of 1:5. When the primary voltage is 400v and it is connected to a resistive load its secondary current is 100A. Calculate the required value of source resistance of the supply to give a maximum power trnasfer 2. Vp = 400v, Ratio 1:5...

hey there.. how am i going to sketch a vector diagram of the given diagram? is it same like phasor diagram?

Homework Statement "for a cantilever beam with a concentrated load in the middle of the span, prove that the slope is WL2/8EI, and the deflection is 10WL3/96EI" Homework Equations the length of the span is L, the concentrated load is acting in the middle at L/2 The Attempt at a...

Assuming that I have a C-Channel When the load acts along the X-X axis, we take Iyy for the Bending moment calculations. Similarly, when load acts along the Y-Y axis, we take Ixx. But if i have a load that acts on Z-Z axis, how do I calculate the Moment of Inertia? PLS SEE THE ATTACHMENTS...

Hi, This question came up on my midterm and I had no idea how to answer it without redrawing the entire curve as a stress vs. strain curve (which obviously took too long to do). Anyway, I'm just requesting a general procedure, not a numerical answer. If you had a Load (y-axis) vs...

1. Homework Statement The battery has 1.35 V output voltage and 0.15 Ohm internal resistance. The battery is used to boot a small electric motor with 285 Ohm resistance. Find the power delivered to the motor. What the power will be if we use two batteries of this type in series? 3...

Is this doable?? Next year I'm taking organic, physical, analytical chemistry, modern physics, and calc3. I guess the only way I'll know is to actually do it and see if I can handle it but I wanted to ask you guys and see if you had any thoughts about it. Plus if you've been through this some...

I don't need any help for the engineering maths I'll be doing after but if I anyone could advise me on how to write a program that would take a set of x and y values and then give me back the y values at certain intervals on the x-axis I would be very grateful. I've got colossal amounts of data...

i posted it in general physics and got not answer. maybe this is the right place for this. thanks here is a question for max dynamic factor for sinusoidal load F*sin(at). say the natural frequency is b for a mass. then the max DLF considering damping is DLF=1/(1-(a/b)^2) when a>>b...

Hello, I'm trying to design and fabricate a dc motorized turntable (24" diameter fairly light-weight pressed wood table top) to rotate at various slow speeds between 1 revolution per hour to perhaps as fast as one revolution per minute carrying a load of up to 10 pounds on a lazy susan type...

Hi... I am doing a project to calculate the load required to bend a plate.. Here are the details.. There is steel plate of 2000mm width and 25mm thcikness placed over 02 support steel rollers of diameter 180mm. Another steel roller of same diameter press from the top of the plate at the...

Help with Load analysis ! I have a rectangular bar in between two rectangular bars ( a sandwich ). The outer two bars are attached to springs on the outer sides and press against the middle bar with a force of N ( due to springs ) thus acting as support for the middle bar. The middle bar has a...

Hi, I'm new to the forum, so please be kind. The question is: What is the relationship between a truck's tire pressure unladen and laden. Parameters: 11R22.5 Truck tire @ 90F @125 PSi unladen with a nominal load of 2500 lbs. @ ? PSi laden with a total (including nominal) load of 5800...

How transformer loss vary with load current?

Hi all, I am trying to calculate by hand the maximum load that a concrete 1m x 1m x 1m block can take before failing. The load is applied uniformly across the top of the block. I've found out that the average compressive strength of concrete is 70 MPa. Is there a formula that makes use...

Hi Im building an energy meter and I have a doubt about the voltage channel I am using to measure voltage. Basically there is a transformer that is connected between line and neutral and on the secondary side, there is voltage dividing resistor circuit to step down the voltage to the levels...

Hey, so I have this loop circuit that has some input voltage V in series with a resistor with a resistance of R and another in series resistor that is my load resistance, let's call it G. V and R are not variables, only G is. I know that because of Jacobi's law, to maximize the power...

Hello guys. I study in an engineering college and I'm an electrical engineer. Me and 7 other people have been assigned by our department HOD to conduct load studies of the entire college, each department being individually surveyed. We need to conduct the load consumption of each department at...

Homework Statement the power factor of a load is 0.866 lagging.the voltage is 200v and the current is 5A.caculate the equivalent series reactance and resistance of the load. Homework Equations cos.theta = power factor = resistance / impedence= 0.866 volt = ampere / impendence The...

Homework Statement A 36Ω resistive load is connected to the secondary of a transformer. The terminal p.d. at the secondary is 24v. If the primary is connected to a 480v a.c. supply, calculate: a) the transformer turns ratio b) the current and power drawn by the load c) the current drawn from...

If I made a backup using Windows 7 backup utility of my computer, would I be able to load that backup onto a different computer running the same version of Windows 7?

If a beam is arched, how does this affect its load carrying capability ? Considering the same beam bent into two different formations (below) - which would be stronger ? (if any difference) 1. A long arch (horizontal distance between two ends) of low height (max vertical height of arch)...

I have a ferrite 12V to 36V transformer driving a purely inductive load near the maximum load capacity of the transformer. The inductance of the load is much less then the transformer secondary inductance. Twelve volts is placed across the primary for a period of time T1, and the...

I need to create a dummy load on a 120VAC circuit. The load must draw .3A. How can I do this?

Homework Statement The objectives of this exercise is to develop a load flow algorithm based on Gauss Seidel method and then investigate the phenomena of transport of active and reactive power over transmission networks. Background A remote load centre is supplied by a remote hydro...

I'm trying to calculate the max load of a rack made of 3X3X1/4 steel tube. It is 8ft long and 4ft wide. I just want to calculate the max load (distributed load) in bending cross the 8ft and also in compression for the legs. i can't find the right formulas. can anyone help? so far i what i...

Hey guys, I already checked through quite a few other posts and didn't find any that answered by question, so I figured I'd just post a new thread... Next semester, for right now, I'm signed up for Multivariable Calc, Linear Algebra, and Foundations of Math (I guess this would be the...

Greetings, folks! I need easy, visual confirmation of the continuity of a resistance wire-based heating element circuit (~80W, 12VDC): it is simply a loop of Nichrome resistance wire (with a fuse!) connected to a 12VDC battery bank. If the circuit breaks somewhere, I need to know...

I'm trying to solve a problem that came to me using a numerical method. I'm going to put it here. Using the moment method (MOM) find the load density at a conductor disc of radius a due to a punctual load q placed at a distance l of the disc. The analytic answer I'm going to put here. But...

Mechanics Question : Maximum Load needed ?? Urgent Please Help Homework Statement http://img694.imageshack.us/img694/5462/66814773.jpg A new steel bracket was designed to support various loads being hung from the end. The designer would like to know the largest load that can be hung on...

[b]1. Determine the allowable uniform load w if the allowable bending stress is 24ksi and P=15w Given: I=12,800in^4; c=16.965in [b]2. I know that Mmax=\sigmamax/c(I); And Mmax=wL^{2}/8 [b]3. I solved for Mmax=18,107.869 k in; but I don't understand how to solve for w with the...

I love these shows. I know turbo doesn't have cable, so doesn't get them, so thought he might like the free video online. http://www.history.com/video.do?name=LockNLoad Tell me this Warriors guy doesn't make you think of Russ_Watters. http://www.history.com/video.do?name=warriors...

Homework Statement I'm to design a crane, and therefore I need to find the reactions in the jib and also make the crane stable. 1. I need to find the max. load that the crane is able to lift. Therefore i have to find the reactions where the horisontal and vertical boom is meeting. 2. I need...

hi every one, I have a problem for load dates in matlab, I have 2488 dates in xls file and txt file but I can't make that MATLAB read the number as a dates? Does anybody know how to do it? for example I have this: 2000 03 01 2000 04 01 2000 05 01 2000 06 01 . . . And I want that...

Hi I would be grateful for some help or pointers for the following question. I am an orthopaedic surgeon and often when we fix fractures we use screws to hold the bone in place. We use different configurations of screws (ie one or two parallel or orthogonal, two screws at right angles to...

Hello everyone, I was wondering if Canadian graduate schools care about whether you have taken a year or two with a full-course load. By full-course load, I mean the maximum 10 courses per year compared to just doing 8 or 9 courses. I know that some Canadian medical schools require you to...

I'm trying to calculate the max load of a rack made of 3X3X1/4 steel tube. It is 8ft long and 4ft wide. I just want to calculate the max load (distributed load) in bending (prob for just the 8ft sides) and also in compression for the legs. i can't find the right formulas. can anyone help? so...

Hi All, I've been trying to figure out how to get this formula working for a few days now, and I *refuse* to give up. There are three high points, with a line running down from each to a load W. Each of the lines A,B,C are at different angles to each other (x-y plane), and each of the lines...