Shaft Definition and 389 Threads

Homework Statement I am going the do some alignment of a shaft.I use a dial indicator for measurement, and use rim-face techniques. Then I need do calculate the total TIR (Total Indicated Runout). Here is my result of my measurement (Dial indicator). Top: 0 Right: +0,08 Bottom: -0,27...

Homework Statement " determine the diameter of a replacement solid shaft manufactured from the same material and subjected to the same maximum shear stress and torque" Ok so I previously calculated the following: Maximum shear stress= 35.8 x 106 Torque= 450.117 x 103 Hollow shaft...

I have a grade specific query. We are currently using 35 mm dia shaft of 1020 grade steel. We want to upgrade to 4140 steel of same diameter. Researching on google and this forum i found out the ultimate tensile strength of 1020 grade is 710 MPa and UTS of 4140 grade is 1080 MPa. But that's...

1. A ship's propeller shaft transmits 7.5 MW at 440rev/min. The shaft has an external diameter of 230mm. Calculate the maximum permissible bore diameter if the shearing stress in the shaft is to be limited to 150MN/m squared. The modulus of rigidity for the shaft material is 79 GN/m squared...

Homework Statement Nevermind the rough picture, the shaft is cylindrical. Knowing that the post has a diameter of 60mm, determine the principle stresses and the maximum shearing stress at point K. Homework Equations These are equations for your reference: \sigma = My/I \tau = Tc/J Where...

Hello, I apologize if this question appears simple; it may be but I cannot find the answer in any of my textbooks. I want to turn a shaft with a diameter, d, and length, L, which has a plate attached at the end, of diameter D. I made up a side view of what I'm trying to illustrate in...

A 180 degree movement (12 o’ clock to 6 o’ clock in a clockwise direction) transposed into a180deg shaft rotation with no mechanical components present at the pivot point or in the swept arc after movement (i.e right hand side of clock face) Example: I’m currently designing a sophisticated...

Homework Statement A 400mm hollow shaft is coupled to another 400mm hollow shaft. The pitch circle diameter is 600mm and bolt diameter is 65 mm, and there are 6 bolts. The stress in the bolts is the same as the stress in the shaft. Find the inside diameter of the shaft. Homework...

Homework Statement Consider a hollow drive shaft of length L, inner radius b, outer radius a. A constant torque is applied (we can assume one end of the shaft is fixed because we're applying a constant torque T regardless of the angular velocity of the shaft). We know material properties of the...

Homework Statement A shaft is turning at 73.8 rad/s at time zero. Thereafter, its angular acceleration is given by a = -10.1 rad/s2 - 4.44 t rad/s3. where t is the elapsed time. Calculate its angular speed at t = 2.58 s Homework Equations 1/2(Angular accel formula)+ 73.8t+0= theta...

Hi, I am working on a project and my friend said to me the gas turbine shaft power is 'x' amount of power. It is directly coupled to a generator so the power to the generator is the same 'x' amount of power. How does that shaft power relate to the output of the generator? The shaft spins...

I have a AC induction motor,i use a strong clamper to lock the motor shaft.Then i switch on the power supply.? So,i want to ask is there the motor will become short circuit? Can i know what is the cause for this malfunction?Is that the motor stator burn out or they still got other reason...

hi there, i need some advice please. I am a farmer that wants to press some oil seed rape. i have a tractor that produces 80 kw of power at its pto shaft (Power take off) and i want to use this rotational power to produce a reciprocating motion eg back and forth motion. The pto shaft has...

Homework Statement An 8” long, 2.5” diameter, solid bar of Class 40 cast iron is subjected to both a torque of 75,000 lbf-in and an axial compressive load of 165,000 lbf. If these two loads can increase at a constant ratio, calculate the safety factor.Homework Equations \sigmax=F/A \tauxy=Tr/J...

Homework Statement An aluminium sleeve of internal diameter 4.000cm at 10 degrees Celsius is heated and slipped over a steel rod of diameter 4.040cm (at 10 degrees Celsius. When the aluminium sleeve and steel rod return to room temp they are impossible to separate. Assume that the...

What is the force (horsepower) required turn a 750mm diameter shaft with a mass of 1,000kg, at a velocity of 160 rpms, with a weight of 2,500kg applied to the shaft? Thanks.

I'm doing some rotordynamic work with an outside guy is doing some bearing research for us. I sent him my steady-state response as a function of frequency, and he's almost taken aback by the bearing loads. He said that long ago he did the analysis with another engineer (no longer here) and they...

I have a stainless steel shaft that is Ø140mm x 936mm long. I need to calculate what the maximum torque is that I can apply to this shaft. I have looked around for formulas and have just got myself confused. Could someone tell me what the formula is that i need to work this out.

Homework Statement High strength steel hollow shaft which can withstand complex stresses generated by a combo of loading conditions. Tresca yield criterion is to be used as the basis of design with a factor of safety of 1.5. Shaft is of 50mm and 40mm outer and inner diameters and is subjected...

How do you calculate amount of power needed to slowly rotate shaft under bending moment? This is not related to transmittal of torque. Given: shaft size span between support bearings bending moment value rpm Assume: slow rotation (ignore centrifugal forces caused by deflection)

Hi gurus, I was hoping you guys can help me with a little something: I have just purchased a 12V DC motor with a shaft diameter of 5.4mm (Oddly enough, the description on the ebay page says 5.5mm, but the technical drawing attached, says that its 5.4mm). In any case - i am looking for...

Hello fellow members. I have a question and was wondering if someone could help me out. How could one figure out how much force is required to turn the shaft of say a large (9" diameter) DC motor directly from the shaft, and also with a lever of any length? Is there some sort of machine that has...

I am a Co-op student trying to calculate the forces exerted on a prop shaft as the plane goes into a turn or incline/decline. this is my method of finding the moment exerted on the propeller for a plane in a turn If the propellor is rotating about a horizontal axis (X) and the plane is in...

What is slip in tube drive shaft ? How it is different from other drive shafts i.e1-piece and 2-piece drive shaft?And what is suitable material of drive shaft ,can we use shaft in bicycle ?

what size shaft is required to transmit 100 Hp @ 1000 rpm ,if max shear stress is 10,000 psi .angle of twist must be less than 1 degree /ft .shaft is made of steel.

Hi guys, I need to find the natural frequencies of a series of pressure rakes. We have a numerical model, but I'd like to confirm with a hand calculation. I would like to model the pressure rakes as a cantilevered beam with varying cross section (i.e. as each tube "stops" the beam decreases in...

Homework Statement Ive been told to have a Mohr's circle in a project that I'm doing Ive never done anything to do with Mohr's Circle or stresses/strains before so I'm unsure what to do Attached file shows FBD of shaft made from AISI A514 steel Homework Equations From reading up...

hi, i am in great need of help... i need to determine the critical speed of a vertical shaft using ansys software ...my questions are: 1. which kind of element type should i choose? 2. wiil it be ok if i carry out the analysis without giving any constraints as it is not supported by...

hi i am going to design a parallel plate rheometer as a part of my project.in parallel plate rheometer, the fluid is sandwitched between the plates and rotation is given to the top plate.top plate is made with shaft, rotation is provided to the shaft by servomotor and for placing the fluid and...

I have calculated the external diameter and the solid shaft is to be replaced by a hollow shaft whose internal diameter equals 60% of the external diameter, the length, material, and maximum shear stress remaining unchanged. How can I calculate the percentage saving in weight? What are the...

Has anyone got a link to manufacturers catalogues or websites (anything online?) where I can find standard pipe shaft sizes?

Stress Calculation on "D" Drive Shaft Hey guys, I have a problem. I need to calculate the stress on on a shaft that's driving a fan. The shaft setup is pretty simple. It's a basic circular shaft, then one side is milled to a flat, slightly resembling the letter D. So, of course I have the...

Homework Statement A fan loses an 11 gram piece 460mm from the shaft center. It rotates at 1000 RPM and cannot operate if the shaft is out of balance by more than 8%. Prove whether or not the fan can still operate Homework Equations Fc = mwr2 The Attempt at a Solution I have...

Homework Statement A fan loses an 11 gram piece 460mm from the shaft center. It rotates at 1000 RPM and cannot operate if the shaft is out of balance by more than 8%. Prove whether or not the fan can still operate. Homework Equations Fc = mwr2 The Attempt at a Solution I have...

Hello! I would like to know how to calculate the stress in a ring that is mounted on a solid steel shaft. The shaft and ring is rotating at a couple of 100 rounds per minute up to a 1000 rounds per minute. The density for both materials are know, the geometry is know and material...

Hello! I want to calculate the stress in a ring that is mounted on a solid shaft due to the difference in temperature. The temperature in the shaft is always higher than the temperature in the ring. The geometry is known, the shaft has a certain diameter and the outer diameter is also...

1. Hey everyone, I'm brand new to this site and am requiring some help and a push in the right direction. Here's my problem, I have a solid circular shaft of 200mm diameter, and it is to be replaced with a hollow shaft having a diameter ratio of 2. I need to determine the dimensions of the...

I have a problem of bearing failure. A motor drives a shaft thro a flat belt. This shaft is connected to a load of around 40 kw. The shaft has 1309 self aligning ball bearing as floating bearing at the back end of shaft. On the load side there is a bearing 2209 NUP. The bearing inners are locked...

Homework Statement I have been asked to calculate a range of values relating to a Gas Turbine engine, and while I have been able to find the majority of the values I am almost certain that the Thermal Efficiency value of 1.64% I have come up with is incorrect. This relies on Shaft power...

Homework Statement The steel shaft of a socket wrench is 18mm diameter and 450mm long. If the allowable shear stree is 70 MN/m^2. Homework Equations i) What is the maximum permissible torque T that may be extered with the wrench? ii) Through what angle (theta) in radians will the shaft...

It's a fact that a shaft in a turbine is expanding when the temperature is increasing. A simple equation gives that the expansion can be described as: deltaX=(T1-T0)*alpha*x0, where deltaX is the expansion, T0 is the initial temperature, T1 is the final temperature and alpha is a coefficient...

hi, could anyone explain to me how a change in a shaft diameter affect the Torque. let's say D1/D2=1.5, should i assume Torque2 = Torque1 / 1.5 ? thanks for your help

Hi, I have Two eccentric cams consisting of 100mm dia disks with a shaft hole 15mm off centre. They are 400mm apart & I wish to rotate them together using two pneumatic cylinders each placed on either side of one disk. They are anchored at one end & have a pivot eye at the other. Each...

Attempting to use the formula: D = 1.72 (Tmax/σmax)^1/3 In my case I do not know σmax or at least how to calculate it from material properties. Material is 1045 UTS 84800 YTS 74300 Tmax = 591.55 in-lbs D = 1.72 (Tmax/σmax)^1/3 Any help would be appreciated. Regards

I want to find out suitable material with it physical properties, like allowible shear stress, which will be suitable for the shaft with following given data. R.P.M = 40 rpm Transmitting torque = 2100 kNm Length of the shaft = 2740 mm Smooth drive. Neglecting the bending movement of...

How to compute for the torque developed in the shaft of the motor?? Homework Statement A DC series motor takes 40 A at 220 V and runs at 800 rpm. If the armature nd field resistnces are 0.2 ohm and 0.1 ohm respectively and the iron and friction losses are 0.5 KW. find the torque developed in...

For a system where a tubular shaft undergoes torsion, the maximum shearing stress in the steel shaft must not exceed 70MPa. The outside diameter of the tubular shaft is 50mm and the inside is 25mm How do i determine the maximum torque that can be applied to the shaft?

there is a wheel. A shaft which rotates about a pivot point a is connected to the wheel at the point b. what is the influence of the distance a to b in the torque applied to the wheel . the wheel just rests on the shaft at point a and it is not welded to the shaft.

Hello I am trying to calculate contact stress for a shaft on a hole. The purpose of this calculation is to see if the diaphram on which the hole exists is thick enough to handle the shaft radial load. Easiest approximation would be to use a simple formula for bearing stress (stress = force /...

Homework Statement Show that, at the bottom of a vertical mine shaft dug to depth D, the measured value of g will be g = g_{s}\left(1-\frac{D}{R}\right)g_{s} being the surface value. Assume that the Earth is a uniform sphere of radius R. Homework Equations F = \frac{GMm}{r^{2}} V_{S} =...