Questions tagged [mechanical]
The mechanical tag has no usage guidance.
205
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Kindly explain this graph which is related to internal combustion engines
Hello,
I am not getting this graph which is related to the Internal Combustion Engine.
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3
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Need help analyzing torque transfer and slippage condition between parts
I have a scenario where Plate A (light blue) shown in the image below is being pressed against two different plates that are in contact with different sections of Plate A. I would like to know which ...
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New to AutoCAD, trying to accomplish a simple task of trying to simulate how much force can a U channel withstand
Sorry if my question or parts of it seem vague or stupid, I'm fairly new to mechanical engineering. I'm part of a team that is building a simulator platform and I am mostly at the helm of the software ...
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Wind Turbines on Cars used for Aerodynamic Braking
After a lot of research, I have found that people have been continually claiming that Wind turbines on Cars would not help whatsoever due to the Law of conservation of Energy. While this statement is ...
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Motor for a sukkah rooflight
im designing a motor for a roof light but will need to be disengaged from the motor and be able to open and close without any electricity.
any ideas would be greatly appreciated
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Mechanical linkage
I am not an mechanical engineer and I have a question about this laboratory rocker (https://www.thingiverse.com/thing:2948680/files).
As I wish to reduce the height of the Model_Base.stl by half, by ...
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Characteristics of a smooth belt
I want to replace a cylindrical pulley, so I came across a component called a smooth belt.
Now this thing came with many differenent variations, from 2.00" up ...
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How to determine whether a threaded rod will rotate under load
A part of a structure I am designing incorporates a large threaded rod (1") diameter mounted vertically both for structural strength and for the potential to adjust the height of the top mounted ...
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Frames and Statics Question
this is an image describing an exam question I have to practice on, and I am so stuck.
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Building Equations of Motion
The following figures represent a model of a building, can someone help me, extract the newton equations of motion and determine the degrees of freedom.
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Why do some car's A-engine-mounts have bolts vs studs vs both?
I have come across engine mounts of various cars and am just curious primarily related to the "A" engine mounts where some manufacturers use only BOLTS, while some use only STUDS and some ...
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Which pilot hole is better for helicoil insertion, a hole with cylindrically flat surface or a hole with cylindrically tapered surface
When it comes to helicoil insertion, the choice between a hole with a cylindrically flat surface and a hole with a cylindrically tapered surface depends on several factors. These factors include the ...
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FEA of Rectangular Body Under the Effects of Combined Rotational and Translational Shear
First image is model setup. Clasp is rigidly constrained at top surface. Rectangular beam is affixed to clasp at clasp faces (locally constrained), by way of adhesive pads (second and third images).
...
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111
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gear size selection for a compound gear system to fulfill a specific output ratio
I need help creating a compound gear system that will result in the sought after drive ratio or very close to it. Naturally gear teeth need to be whole numbers. Websites like 'GearGenerator' (dot-com) ...
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Question about dynamics n-t coordinate system
et = tangential unit vector
en = unit vector in normal direction
I'm currently studying dynamics and I'm having difficulty understanding the process of obtaining det and det/dt in the n-t coordinate ...
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High or low friction on a sprocket/chainbelt drive
We have a segmented belt/chain drive. Both the belt/chain and sprocket are nylon and we have issues with slipping on the sprocket. Would a material change help or do we just need a better tension ...
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Coupling suggestions required
I am looking for a Hub-Shaft coupling which has no alignment error (angular as well as parallel) and can be used for a fixed axial distance. No misalignments can be ensured by PL032X050M but in order ...
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Inertia calculations of planetary gear given below?
We are basically working on rotary pick and place mechanism based on working of gear mechanism with some modifications.
Check the picture
There are three planet gears which are attached to a carrier ...
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Acceleration of servo motor with AASD-30A
I am using a servo motor 130st-M15015LB with the AASD-30A driver.
I have to use the acceleration with position control mode.
I can see in the documentation that If I use Pn110 to Pn112, I can have a ...
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Stepper motor response under varying load
I had a thought that came to mind that made me curious-- Though unfortunately I am not an ME.
I was wondering if someone could assist me in working through my thinking, but you will have to be gentle ...
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What is the purpose of the additional metal bar on the latch bolt(tongue)of the door lock?
Hi.
As you may see at the photo,the tubular latch
has a triangular metal and a thin half cylindrical piece
of metal next to it.
The purpose of the triangular one is obvious,but
What is the purpose of ...
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2-speed 2-direction gearbox design
I need to design a gearbox with the following properties:
The direction of rotation is maintained between the input and output shaft
The input shaft can be rotated in one direction for one gear ratio ...
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165
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What will the reaction forces of a support be in case of an angled cable
If a cable is attached to a support on each side, and there is a load acting on it somewhere along its length.
Is there going to be a vertical reaction force only if the the cable is angled?
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The knee gives a mechanical advantage point for the leg, would a "reverse knee lever" also work?
As shown in this video, the simulated knee cap creates a fulcrum that allows for a better mechanical advantage for the muscles to pull the leg.
So I was wondering if the reverse would also work, or if ...
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How to keep a stationary motorcycle handle in the forward direction
How to keep a stationary motorcycle handle in the forward direction if no force is applied to rotate it. I have seen such motorcycles in Arcade Game Parlours but I want to make such one for myself.
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How to align a shaft with gear box and mechanical seal and uc bearing?
I have a 15 inch (381 mm) shaft with 24.95 mm diameter. That shaft is attached with a gearbox (ratio 5:1). The gearbox is driven by a motor (rpm 2750). There is one UC bearing and mechanical seal and ...
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Which tool to measure shaft alignment for small diameter shafts (d=10mm)?
I have seen many tools and methods to check shaft alignment, but they are mostly used for big shaft. I wonder if there are small tools for small diameter shaft with limited space to install?
Can you ...
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Torx, Hex, Philips or Slotted screws
I mostly use M2.5 size screws. I got some brand new Torx screws but when I tightened them for the first time, either they stripped or the bit of the screwdriver got twisted. What could be the reasons? ...
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How to affix a 3/4" keyed bore wheel/pulley to 5/8" D-profile shaft?
How do I affix a 1.5-inch-thick wheel with a 0.75-inch keyed bore (or pulley) to my motor's 1.25-inch-long x 5/8" diameter D-profile shaft (both pictured)"?
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DC Motor - need to go to 200-10,000 RPM
I'm currently working on a setup with Raspberry Pi, a 12 V DC motor and a L298N driver. I need the motor to go from 12000 RPM to 200 RPM, or at least in that range - the only problem is that the L298N ...
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hydraulic pressure per cylinder, see below
when providing 2800 psi pressure to 6 hydraulic cylinders with .196 area of each cylinder what is clamping force on each cylinder. F=Pressure *area so 2800 x .196 is 548.8 psi or is it 548.8 /6 = 91,...
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Compound Machine with Worm and Worm Wheel Drive Velocity Ratio
I'm having trouble understanding the working principle behind solving this worm drive. Here's the question:
A double threaded worm and 40-tooth worm wheel are used to drive a mechanical winch. The ...
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Scissor mechanism won't budge with slotted pin
I am looking to better understand why this scissor mechanism so easily moves by directly pulling on the lift...yet, seems incredibly difficult/impossible to move via the attached point in the slot?
...
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How does this pawl mechanism work?
From 507 mechanical movements, No. 63, we get the following diagram and description.
Jumping or intermittent rotary motion, used for meters and revolution-counters. The drop and attached pawl, ...
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how to fix an object at either 90degree or 0 degree
my problem is i donot know how to let the blue colored object be fixed at either 0 or 90 degree.
i dnot want to be moveable at any degree like 30, 40 , or 50 degree either 0 or 90 degree.
i have tried ...
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Wind-up toy car constant speed problem
Set Up: In a classic wind-up car we store energy in spring. The energy then used unequaly in time resulting variable speed during the ride. Max torque and power and acceleration at the begining, with ...
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Strain As A Function of Deflection of a Hollow Cylinder
I should think that there would be a direct correlation of strain to deflection of a hollow thin-walled cylinder, but I've seen nothing as of yet. I must be missing something. For example, let's say I ...
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why does the Bugatti Chiron watch w16 animation only last 20 seconds? [closed]
why does the Bugatti Chiron watch w16 animation only last 20 seconds and not more?
why doesnot it last more is because lack of energy from the mainspring ?
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What is this spring known as?
Could anyone tell me what the spring part of this component is called please so I can source something similar?
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How to pull a component through a panel cutout using a screw mechanism?
I have a camera fixed to a cube frame structure made from aluminium extrusion. The frame will be covered by a 3 mm thick fibreglass enclosure (this is highly rigid) with a cutout for the camera, which ...
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how to let a needle move in positv roation and then a negativ rotaiton then it should loops [duplicate]
i am trying to make a watch that looks like the speedometer from merceds benz AMG
my problem is i canot figure out how to let the needle or the minute hand (call it what ever you want) rotate from 0 ...
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How can I make a needle to turn slowly CW to the final position, then return quickly CCW back to the initial position and to start again turning CW?
What I want is after the needle reaches 60 it should go back to 0 in the way showed in the image
The mechanism should preferably be based on gears which convert a steady continuous rotation to the ...
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Calculation on gearbox design
I want to design a gearbox of 70hp input motor and speed of 1400rpm. The gearbox ratio is 1:10 of 2 stage parallel arrangements.
How do I calculate for the teeth, modules and other requirements ...
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Remove stripped screw inside of a tube
I have a stripped screw inside of a tube (see picture):
The size of the screw is M2 and it seems to be glued. This is part of a camera objective so I want to avoid impact (e.g. tapping with a hammer)....
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What are some interesting applications of G2/G3 Continuity? [closed]
I've heard of CNC tool paths using splines to approximate G2 continuity to create smoother motion.
Also, rollercoaster designs use G2 continuity to reduce shock from sudden changes in curve radius ...
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Failure criteria for CFRP single plate bolted joint
Which equation can be used to find failure based on ply orientation.
Tension,shear & bearing faliure to validate against fem analysis
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How does the retrofit mechanical system work in the rear brake pistons of cars (dual hydraulic + mechanical)?
I discovered recently (when changing the rear brake discs/pads of a car) that the piston cannot be pushed back without setting a rotation to it in the same time.
This is due to the dual system with ...
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How can I understand shear flow in a beam cross section?
I am trying to understand shear flow and I am just not getting it. For example, one of the problems in Beer has an I-beam and there is both a horizontal and vertical force acting on it. So it has ...
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Clarification of a piston and crank dynamics question
Yesterday, I had an Engineering Mechanics exam which involved a Piston and a Crankshaft engineering dynamics problem, which I was a bit stumped about. I sought clarification from the teaching staff ...
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Is there a geometry that meshes exactly with a rope?
I'm in a use case where the outer surface is a gear driven by a motor (that's the easy part) and the inner surface meshes with a metallic (iron) rope. When the part rotates, I want the motor and ...
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