Lesson 6 (2)

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Dear learners in this class, we shall continue what we have left in Lesson number six on Sudoku, we are learning about the bending moment just calculation sheet and also drawing, bending building. Let us see how this can be done calculating the inertia of a T section dissection and the disruption and the loss clubbed listen he was wrong somewhere in the place of this one centimeter I put it out see five minus design, but it is not c five minus one minus two E to see. So, and because recollect these two as the trigger not getting answers as good as quite a while the reception we have find out like this is not what we had here. Here we are getting neutral axis 13.7 and suppose we make a equal to b let us see what happens just see what happens when I have no idea this column this one Maybe equal to c that is equal to b that would mean a are equal, then it becomes an AI section and moment of inertia because of sweetie dissection, which falls midway between 25 and 35.

So that's how you can change the value you want to be changed say, put it as 88 then you will have a moment of pause the depth to change it to murder inertia is changed. This is all we can do modification if required. And frantic this also we can change. So everything is get changed here. So this is how you when you can make this Yes, more than less. Learning can be changing.

Once you've got this this is how we can find out a moment of inertia section. So, again peace. Yeah, we do because Okay, now your next go see the next sheet to see what we have? Yes I'm going to calculate the bending moment of the beam. I have drawn the sketch to JPG and how pS gt here this is a beam religious continent This is a high section. Let us imagine that is the center of this section that is d section here we section is D, let me mention the same thing and then let us see there will be three load acting a DS w 2000 kg and W one this 1000 kg w cola Okay.

That means that the distance of me and cheese six meter just arbitrary no then we have to calculate the reaction. Reaction nice. Take the moment suppose we take the moment and r1 To include our two is equal to the mean t plus w one into C that's what I'm doing that will be divided by Dr like this 10 meter you said all in meters written here and when you will get in kg meter for reaction and reaction r1 is fine by us just a second months of tracking completed adding this is to correct minus r1 CTC 45 minus you can you can and will get the reaction at this point. So, the sum of these two equal to sum of all these flows no no we have to find out Bending, so, I have written this cheat sheet on but once again we don't do fundamental understanding, I will just say like no bending moment to the beam at one meter length.

This is why this is one, you can transfer the values of sheet three to the sheet for that what we have to do is equal to sheet three exclamatory mark that is that represent we are transferring value and with the absolute value of the asset that is dollar c dollar. Love it. It means you treat Mr. Danson value from cell C goes to the cell t. here you set C rather than what is it 3004 Does chicken dead 3004 Okay, we do c seven c seven is this give bending moment at this point is r1 reaction multiplied by this distance that's what we have given me a linear bending moment at that point Shi T shi T the same Z sub n is the value of this one okay that is taken more than similarly, we gone with other similar names you can do gather case.

See here what we have to do is a vendor moment a W one of course, I could have drawn the sketch here but anyway Never mind. W one random moment at this point each r1 into C minus w e da minus W into w into r1 into C w into from here we are taking TA and then W. See, that's what we have written here. Explain you once again to be human at this point r1 in distance see here the bending moment is w w c minus u this is a VA, okay. The bending moment here is a deliver awesome w acting here if you take this moment and this point wt c minus here, that is when r is C we can use a single positive for hugging, body sagging and Negative one hugging, hugging means, the bank the bank conflicts if you appear over here forget about distraught, if you apply earlier this sheet this will then determine a pool you apply this law when you take a new member, his tendency is to render it upward that is a beam is where can give that is called a second minimum.

And here's the when you take the moment here, the tendency of just slowly to bend it downward, that is concave surfaces made concave. If you bent if you bend, if you apply a road here, and if you take a moment here, the tendency is to bend it upward that is the surface becomes concave. In this case, why blend downward when downward, so it becomes convex. That is all just simply looking at up until we can consider that anyone on the positive on the other one negative. That's it. Okay.

So here's what happens. This is what I happen to like. The same thing, when the moment Actually, this I have many mentees at this point I'm controlling r1 r1 is 11 into C eight, okay? I'm to deduce shagging a positive and this slow tendency is downward hogging. So I've taken you at the moment if you take w c minus a, W, this item C minus Hey, this is C C eight this is what this is 11 this sheet TC eight minus c seven c eight c eight is this one minus c So, this is c minus eight okay the whole thing this whole thing and then multiplied back CT reload I guess w one this is the sorry this is W this one this one okay no that is CT okay. And it is also on it is also well known, the bending moment curve, the straight line from year to year there is no continuous variable load, uniform variable load and variable bending moment and knitting pipeline.

So, we need not take any moment in victory we can take moment only and get your points. Okay, that's why I have taken these One moment here, one moment here, take a moment here are one two, you got a take a moment here or two into C minus w c minus u. Okay. Now we'll come to the third one, this one w two w two I have written here this is also my that is c four into C, we first take the difference CTC nine minus V eight c nine, this is a DC nine minus ga D if you take a moment here, this w into this and similarly, this is W e to the minus a b minus this one you have taken yet, one and this will W humans you see something at CTC nine minus EWD minus c okay this is how we have taken the bending moment and then we got the value aka calculating this and our two V naught is 00 initially also r1 also at zero I can Okay.

Now we have these values and we have the point at one meter 3400 kilometer, W one that is true meter 4800 and W two both of you are Length of 10 meters. So, the minimum like look, you know, how we can get this I hope you have understood a relation I am giving you but anyway I will once again explain you see these are the bending moment we have to continue our wanting to you are going to have our one and second one, when you meet a W one is r one, c minus w equals c minus EA. That is chicken here is one and third one is W two d minus one two b minus w two D minus WC minus WV minus t times taken to come to one one on one t plus one minus my flow and at the end of the road 10 meters will open the room at this point because momentum momentum all the forces at this point is taken this hugging bending moment was sagging when when you move applying properly site becomes zero.

Similarly, you start buying cars when the moment is you know, to take momentum from all to this is foggy This is sagging and this is logging that becomes good because the equilibrium in the end point has to be we have done the calculation moment. We are Taken according because if Miami go to zero, Maya is also so sick my f means my x equal to zero is equal to zero. That is when the sum of the value meant all the laws acting is equal to zero Zoo semen results when the total load is also zero, r one plus r two equal to sum of these two and there is no horizontal or vertical balance, we meet in equilibrium, but it is being acted upon by various forces and there were stresses in the beam section. I will come to how to drive manual I have already done it once again right for you and understanding, see insert here, you have to go to insert.

Okay, and then you select the chart setting the chart Okay, there's no data yet you yet okay. We want a line graph in pharma straight right. So, this is the line graph, this is a line and this is one more chart for the bar lock another thing, this is the area chart and this is this jacket area chart, this is 100% TrackMania This is column strap area this is just so, many things, let us know we are interested to know about this, how to find the relation between distance and the moment this is and this is also there, but this will not be applicable here, because we have seen a straight line uniform revealing when suppose we have a UDL uniformly distributed shooting road then possibly we need to have they exist because we The very minute length very 121 trillion and it is going to be a smooth curve.

Here we are considering this and this we now have to enter the range, CTR what we want to know from C three that is beat do we see selling weed three see selling now this is not applicable to Cecily vt To see some can be, he got romantically picks up once we have given the range, it goes up to seven and then C V and then the next two column next to parliamentary and separately, this is what and then when you click this enable so this is Pete once again once again chart then we don't want this select this and you choose now things change v3 The summit It was a complete this is all we can see this was a ghost so we don't want to miss and suppose we enter wrongly CT and cheese on the finger we reverse a procedure and visa and what is going to happen Yeah she was it was I mean this city can you pick up the ctbt Tony This is where and this is actually watch on the naked that this woman he shot so that's why you have to prepare a line chart meat is a special method you use and this is the method we have here.

This is only showing show you once again the Templar enjoy this time Okay because we just picked up this values are here so when he goes and runs and does valuation on a claim choosey I want you to be 71 to be some sort of courage shows you won't be the sign this is not my god this is like this like twisted but you are not seeing that because we had a go scenario but you can't see me booking shows he wasn't gonna show up because you can't see it. This is all weekend I got to do more shows only numbers are not only completed last year and then these two lines are giant. So, this is a rebel image, this line should not be joined. This is also correct but the scale you are not knowing know the strength is 10 meters and up. proportionally these values reveal you can see.

So you may be at a level that is like line strength. Exactly so it becomes TVs although it doesn't indicate axis you same thing he's also seen a lot So, I will show you how we can add other parameters here. Suppose we want to have chart area we save the chart area we can get it now we don't need stripe charts type what we get is your strength smelters which is a background color you can you can you can you can you like this and we don't want you color shows like this and then this is that oh no we don't need anything on a font is narrow. Various fonts are given that you can apply that is this value selected reality you can apply any one and then try to access grid right this is important vertical axis Count on which number of gridlines we have to pitch between the registers which is suppose you want to have 10 See, so, then he can any point you can find out exactly the value here because you can either scale vertical axis also you can see say to find out the value at any length of the length and just think what is the meaning and this length your lengths are wider, we cannot get exactly this is also the same water have gone, this is gone.

Get and then we have to have an agenda See, we can aggregate. So suppose you want to using vertical axis to charge the axes, and when. Thank you. This you can work in board on whatever you want to say W can. This is again. Go to the next session.

We'll see what we can go into the next session. The sample chart is the same chart that I have given you there. On the same chart, Shawn find alternative stresses. We will have plenty Be she's just as sad as it because the bending moment we've managed our actions by painting correctly what do you do? Better to live been parently been been let me see, he does versus r1 to Otto like this interesting, like really respond it's just will be different at different points because just bending material will resist the bending. So table developer constraint because when you apply load like this it becomes convex.

So but it becomes concept because it's trying, but it will not break on it will not fall down. So, in order to do that, we material influenced resistance assessment develop so that you balance the interest versus the actual end money will be zero that includes research into into such as the stress multiplied with the distance from the neutral neutral axis and this is zero that is opposed assesses the entire area different magnitude magnitude, at this point the speaker gradually comes down to zero. So, you will at this point the speaker invaluable control zero. So, depending on bench if you went like this, the bottom portion is subject to transcend the top portion compresses to the game, normally we have to consider consistency that is one thing that survived your compression strength, better, higher value, but still a long way but we can consider both depending upon what you adequate support the new Nexus is not at the center in this process of extreme fiber or logic one maybe it is different if it is a Maria neutral axis, then excuses here is x i just fiber fine, it will be something like minus x press on x minus something like that.

So, complex with the sign will always be on either side of this we will see how this can be equated. You see, I don't want to read Ron i think you know that young by like you This phone line. So that means if I take off I decide then what is going to happen like this. They use monitors, session monitors. This monitor just saw No one continues to find out. So, when you are given a stressor and you have to design according to stressor, then you have sexual monitors and then went on we are getting.

So here in this case it is so we can add. so here we can see yes good morning good Mr. Chairman, sorta have done in the morning before your beta. So, this is the maximum that you can find out here always have to consider the maximum bending moment value in this case all are subjected to. So, again, so this is the MACD manual. This automatically will cynic phobia gets into just cycling there's no problem. In the case of a car wreck you write a series of values and from that take the maximum good calculus we can use for the maximum value like in Google Sheet is a digital type and you cannot use calculus in this type of calculation, that's why you have to interpolate number of values you have to consider kind of the best geography Okay.

Now 1800 is the bending moment and magnums zone and section models we are picking up from you have calculated here murders section this is that you have to write sheet to balance sheet one. This is a sheet can take a day. So when we get stressed the value will be 14 this one divided by 200 To read, because Demeter could be converted into centimeter divided by v two which is 441 can you possibly know let us see how the values will get changed to change any of these values variables. So, here variables are on this bending moment, this length is also dependent upon what you select here. Suppose I select a role everything you can select here, up to here you can select any value within the name. Suppose I got 3000 everything is changed you Similarly, I just push an auto reversing chain and you got an distresses to automatically get changed everything everything Of course, you can always argue by just and similarly section we are considered this is the section we have shown you this section I want to change that section as you can change See here, remember you memorize this, you want to use value, this value particularly change because when the moment remains the same this process will change.

We can use section modules will change. The monitor section modules will auto adjusts values of the section modules here. Suppose I make it 10 C section modules is called chain of the C section model says chain just just toggled on. So here any value data values variables 123 independent variables 12345 this is not an independent variable. These are the things in even variable new changes or numbers 1234555 values you can change. You can choose 1234567 plus seven values you can get change change, automatically changing when you don't see any change or, hey this is all we can propose changes to stressfully values change the action remains the same.

I will use it now. Suppose I increase the D F to increase automatically models increase or reduce children because you can see such a model is automatically removing hardware especially when you first special come down. We continue to believe the vending machine. Okay to add a degree Blanche, we can ask Can I get some Jamie when you get images in What movie do you get 7000 this weekend, I know demand justice in the week after the spring to upload up a big IP and so make this D is equal to B then it becomes a rectangle that be equal to you p equal to b because the angle P and S equal to zero we can make them becomes H's, the depth is equal to any value, then we become, this is a new moment. And it is important. You have to have all these together, read all these things, six, six, sigma 6.1 and they're all been off for one chapter, a single chapter.

So, you want to understand all these things. You get to watch all these things together, because I wasn't a report. So, the things you want in the second one is according to Lesson number six, six, and uni correction is required that is also our effort. So hence it is necessary watch all the 616616 together in this in this class, and next we'll see some other videos, some calculations stacked up with you. Thank you

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