The red-eared slider (Trachemys scripta elegans), also known as the red-eared terrapin, red-eared slider turtle, red-eared turtle, slider turtle, and water slider turtle, is a semiaquatic turtle belonging to the family Emydidae. It is a subspecies of the pond slider. It is the most popular pet turtle in the United States and is also popular as a pet across the rest of the world, and is the most invasive turtle. Because of this, it is the most commonly traded species of turtle in the world.Red-eared sliders are native to the Southern United States and northern Mexico, but have become established in other places because of pet releases, and have become an invasive species in many areas where they outcompete native species. The red-eared slider is included in the list of the world's 100 most invasive species published by the International Union for the Conservation of Nature.
I need help understanding what happens to the gas that is being worked by the piston, in the crank slider. My goal is to produce linear motion on an object up to a certain height and I'm wondering since the slider moves back during the rotation of the crank what happens to the object I'm trying...
I am in a mechanical design class that has been focusing on the slider crank mechanism. My professor tends to just provide derived equations without showing the analysis. I feel like I am missing out on some key understanding because of this. Specifically, I am trying to do what should be a...
Hi!
I would like to know how I could define an equation for α with given the two lengths of the rods and angle theta (θ). I sketched the situation below, the problem arises when the rod Lab has pasts the 180 degrees.
Like to hear.
I am trying to build a dual input (double input) crankshaft, out of Lego. All the tutorials online use flywheels, but I want a strong high quality crankshaft that doesn't rely on flywheels.
The crankshaft is for a 1 cylinder or sinusoidal linear type input. This video demonstrates the flaw of...
I have attached my attempt. The only thing I keep getting wrong is the direction of V_(D/B). I know it is perpendicular to r_(BD) but, I never know if it is going upwards or downwards. In this case, I thought it was going downwards but when I checked the answer key, it had said it is going...
I hope that it is okay for me to ask this here. It has been a long time since i did mechanism analysis.
I have what I hope is a quick question. I calculate the torque required to rotate crank AB and therefore lift up the link BC to be 88lb-in. I assumed that link AB has no weight, no...
It says here ...
https://reference.wolfram.com/language/tutorial/IntroductionToManipulate.html#498667553
[section : Initial Values and Labels]
...that you can fine-tune a "Manipulate" slider by holding down the ALT key while you drag the handle. This is indeed the case, but unfortunately, the...
Hi Guys,
I am currently working on an assignment for my uni. I don't want to post the question right away as I want to try to understand as much of the material as possible; but it seems what they have given me is a bit lacking. As such I was wondering if anyone could point me in the right...
What forces are exerted by the slot on the slider? You have a normal force since it's inside it, and that's the only force that I can imagine. But then? I think about the pseudo-forces since it's on a rotating reference frame (centrifugal force, Coriolis force, Euler force), but those forces are...
T1 + V1 = T2 + V2
0 + mAgh = 0.5mAV2A1 + 0
40 = (5/32.2)VA2
VA1 = 16.0499 ft/s
Edit: Accidentally Used two notations for Kinetic Energy in the "Useful equations" section. Changed it to correctly notate Kinetic and Potential. This notation is used in R.C. Hibbeler Dynamics 14th Ed.
URL:
https://www.jssor.com/demos/image-slider.slider
Is it possible to have a Image slider control which infinitely shows images after every 4 seconds delay but every image itself is a animated and not a static image?
I.e Image Slider control showing animated images .gif,.jpg etc
Thanks &...
https://en.m.wikipedia.org/wiki/Slider_(computing)
Is it possible to design a Slider control which is displayed as a Circular shape, the control can be adjusted by moving the pointer clockwise to show the progress value similar to a Circular Wall Clock ?
Thanks & Regards,
Prashant S Akerkar
Hi folks,
I'm currently working on the design of a triplex plunger pump. I have conducted an investigation into the loading of the pump at maximum operating pressure using an analytical method (free body diagrams) and using rigid body dynamics to validate.
In both analyses the pump has been...
Homework Statement
Homework EquationsThe Attempt at a Solution
As soon as switch S is closed , a current would flow in the circuit and the capacitor would act like a conducting wire . Force F =ilB towards right will act on the slider . There will be an acceleration but the velocity of the...
I've been struggling with this question and wondered if anyone could help;
For the mechanism shown determine for the angle θ = 45°:
(I) the velocity of the piston relative to the fixed point O (V bo)
(ii) the angular velocity of AB about point A (Wab)
iii) the acceleration of point B relative to...
Hello all,
I require your expertise on building an approach or a framework to identify and measure the jerk or vibration in a mechanical system with a slider.
What I have is a slider (S) with a vertical link (L1) attached to it and another horizontal link (L2) attached at the tip of the link...
Homework Statement
A wheel of radius 42 mm is rolling without slipping and its centre O has a velocity 7.2 m/s in the direction shown.
The slider B is driven by the link AB and A is connected to the wheel.
If AC= 28.9 mm, AB= 73.9 mm and angle ACB= 73°, what is the velocity of the slider B...
Hi all,
I have a question regarding a simple crank and slider mechanism, but I'm not a mathematician. This means that long formulas scare me... (: I've been searching around and haven't found anything I can really understand.
I'm trying to get a "ball park" formula to calculate the amount of...
Homework Statement
Homework Equations
The Attempt at a Solution
https://scontent-lhr3-1.xx.fbcdn.net/v/t34.0-12/13140955_10156888508510486_863100825_n.jpg?oh=3f13a038f3dc053c7a10858aa62f6fc0&oe=57318819...
https://scontent-lhr3-1.xx.fbcdn.net/v/t34.0-12/13181084_10156883800920486_1357045350_n.jpg?oh=a39d7777f01c4aa06301c4f3d740de1e&oe=57301DBC
Hi
I am currently studying design engineering and my lecturer has left just before an exam. I really don't know how to find the magnitude and direction of...
Hi all,
I am working on a slider crank mechanism for moving an object of about 100 kg back and forth 30 mm at about 600 rpm.
I plan to attach the connecting rod onto a flywheel that act as a crank, or attach to a pulley (in case need to use a transmission system to reduce input speed, increase...
Homework Statement
For the mechanism shown, analytically find A) Velocity B) Acceleration. Of All points (B, C, D, E and G) The lengths of all links are given in the photo. It has to be solved using the analytical velocity and acceleration method. I've attempted so far deriving the equations...
Before starting I want to say that this topic is from a subject I'm taking called vector mechanics. The subtopic dealt is called kinematics of rigid bodies.
Homework Statement
The wheel rotates around an axis. This point of reference of the center of the wheel is labeled as "A". This wheel...
Homework Statement
[/B]
Find the instantaneous centers of the linkage below.
Homework Equations
# of ICs = n(n-1) / 2
The Attempt at a Solution
[/B]
From the equation above, there are 4(4-1)/2 = 6 ICs in this linkage. But one thing I don't understand is how there are 4 links when 2 and 3...
Homework Statement
Hello, I have an exam later in the week and I'm trying to understand how to this problem.
Homework Equations
Sum of forces.
Sum of moments.
The Attempt at a Solution
I broke the mechanism into 3 pieces, the crank, connecting rod, and slider and then began to analyze...
Homework Statement
A) Determine the value of the angle θ (measured from vertical) when the angular velocity of link AB a maximum.
B) What is the maximum angular velocity of link AB.
Homework EquationsThe Attempt at a Solution
This is a part of a bigger question. I've managed to answer all...
Homework Statement
a) For the mechanism shown in figure 1 determine for the angle (45°):
i) the velocity (VBO) of the piston relative to the fixed point (O).
ii) the angular velocity of AB about point A.
iii) the acceleration of point B relative to A.
*Note: Link AB is horizontal when angle =...
Hi,
I'm sorry my question is almost identical to an unanswered question here, but I was unable to reply to it (because it is old?).
I want to have the mass moment of inertia 'I'of the block C, which will be a function of theta. I am ignoring the contribution from the links.Due to the...
I am currently looking facing a problem concerning a spring slider system.
The system consists of a electro engine that pulls on a spring with a constant velocity. The spring is attached to a block that sticks to the surface, but after a certain force is applied (by the spring) starts to slip...
I just drafted a rather lengthy post which I wanted to Preview before posting. When I clicked on the Preview button, I got the first part of my post, but then I noticed there was no slider bar to scroll down to the end.
Is this feature supposed to be lacking from the Preview window? I...
Homework Statement
An induction device is set up as shown below. It has a U-shaped conductor of negligible resistance along which a conducting slider of resistance R moves in the x direction. The assembly is immersed in a uniform magnetic flux density B of magnitude B0 that is directed out of...
As shown in this picture, if Fb, l (length of connecting rod), r (radius of crank) and θ is given, how to calculate the torque the slider crank?
I know it can be a simple question for Mechanical Engineering majors, but I am an Electrical Engineering major and have very little knowledge in...
Hello,
I'm new to this forum, and I hope you can help me.
I'm working on a project to build my own motorized camera slider. Before I buy all the components, I want to be sure about my calculations. Mechanical engineering was never my forte, that's why I'm looking for help on this forum...
Homework Statement
Given force F (=5000N), find Moment on member 4.
I have attempted to start solving this problem by drawing the following diagram:
I added the letter 'A' to the support of member 2, and also put an angle of 7 degrees to the vertical at the support 1.
I have...
Hi all
The title pretty much says it all...
The slider is required to push and pull a load of 70N. Radius between centre of crank axle and connecting rod is 12mm.
I have been unable to find a formula to calculate torque required to enable selection of an appropriate motor to drive the...
Homework Statement
https://www.physicsforums.com/attachment.php?attachmentid=60570&stc=1&d=1375128608
Thew circuit shows a 10KΩ potentiometer with a 5KΩ load. determine the position of the slider on the 'pot' when tthe voltage across points 'XX' is 3V
Homework Equations
The...
Hi Everyone,
This is my first post so bare with me. Firstly, a bit of background about the problem.
I am designing a near rear drive train for a formula student car which incorporates a chain tensioning device linking the differential to the rear of the chassis.
Essentially I am wanting...
Homework Statement
The 0.6 lbf slider moves freely along the fixed curved rod from A to B in the vertical plane under the action of the constant 1.3 lb tension in the cord. If the slider is released from rest at A, calculate its velocity v as it reaches B.
I have attached an image of the...
Homework Statement
A 2.4-lb slider is propelled upward at A along the fixed curved bar which lies in a vertical plane. If the slider is observed to have a speed of 11.3 ft/sec as it passes position B, determine (a) the magnitude N of the force exerted by the fixed rod on the slider and (b) the...
Homework Statement
A circuit shows a 10kΩ potentiometer with a 5kΩ load. Determine the position of the pot across point XX (taken across the 5kΩ load) when the voltage across the load is 3v
Homework Equations
The Attempt at a Solution
I DONT HAVE A CLUE...
Really stumped on...
Homework Statement
This circuit shows a 10Kohm potentiomiter with a 5Kohm load.
determine the position of the slider on the 'pot' when the voltage acreoss points 'xx' is 3V
ok so the 10K resistor is a potentiometer which is a variable resistor, so what they are asking when they say...
Homework Statement
The instantaneous configuration of a slider crank mechanism has a crank GH 10cm long, the connecting rod HP is 50cm. The crank makes an angle of 60 degree with the inner dead centre position and is rotating at 110 rev/min. Determine the velocity of the piston P and the...
I'm struggling to apply F=ma to the motion of a slider crank, more specifically the piston. I want to find out how much force is nessesary to keep the piston in motion. Essentially, in the mechanism there is acceleration and deceleration, does that mean only at some points in the cycle there is...
designing slider controller for controlling tilt angle of propellors
I've been working on designing a tilt rotor.
The propellers need to tilt from straight up to horizontally forward - 90 deg to 0 deg.
I need to design the tilting mechanism, but more specifically at the moment, what I'm...
Homework Statement
The circuit (attached) shows a 10kOhm potentiometer with a 5 KOhm load. Determine the position of the slider on the 'pot' when the voltage across points 'XX' is 3V.
Homework Equations
Vout = Vin* (R2/(R1+R2))
The Attempt at a Solution
Please see attachment...
Hi.
This maybe common sense to some of you but I am racking my brain to find away to solve this one.
I would like to pull a lever on one axis and move a slider on a different axis .
So by pulling a lever towards me, I move a slider left and right.
Is this possible without ball joints...
Hello everyone.
I have two animations in Mathematica, each with 187 frames. I would like to put one in a corner of the other and for them to share a slider so they both respond to it simultaneously.
Martin
I need help solving a mass moment of inertia for a slider crank mechanism. I've done my best to sketch it in the attachment. This will be used for sizing of a motor.
Homework Statement
Link A has mass Ma and is located Acg distance from its pivot point Z
Link B has mass Mb and is located Bcg...
I am working on a design that requires a slider that is heavily loaded in track. The slider must be able to translate along the track while loaded. The track is not extremely stiff therefore there will be some deflections.
Does anyone know of any design guidelines for designing such a joint...