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Questions tagged [torque]

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2answers
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Max torque allowed on cypress wooden beam

I am trying to calculate the maximum torque that a piece of cypress wooden beam can handle before it snaps or becomes structurally unsound. I know this will depend on the thickness and width of the ...
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0answers
31 views

load in a stepper motor

I want to move a 7 kg object linearly, using a stepper motor. How can I determine the torque required by a stepper motor depending on the load?
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1answer
33 views

Understanding Motor Torque calculations

I have an Aluminium square cross sectional rod of $20mm$ X $20mm$. Length 700mm. At the end of this rod there is a mass of $660$ $g$ attached. My question is what torque do i need to lift this mass up ...
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25 views

1 motor vs 2 motors electric go kart

I am in the process of building an electric go kart, and I came across the expenses associated with such a build. I noticed that motors in the 4kw range are pretty expensive. My only option for ...
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0answers
22 views

Nut clamp force on a crankshaft

I want to find the clamp force of a nut on a crankshaft holding a sprocket & a spacer which are mount on it using a key. I would like to know the equation which is required to go about the problem....
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0answers
44 views

Measurement of ICE torque

I'm seeking a precise description of engine torque. We talk about torque in terms of the twisting force that the piston exerts on the crankshaft with a radius equivalent of the rod throw. Assume ...
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19 views

Locked rotor torque /Starting Torque of DC Motor

I'd like to know how to determine the torque of a starting motor, and how can I see it if I purchase a DC motor. Thank you.
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1answer
40 views

How to calculate the torque of 4 wheeled vehicle before slipping

I have a 4-wheeled vehicle that is 10 x 10 cm. Each wheel has its own motor. The wheel diameter is 3.1 cm. The total weight of the vehicle is 500 grams. The friction ...
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1answer
31 views

Can strain gauges radially be mounted on 8 mm diameter shaft for torque measurement for effective result?

I need to measure a torque on an 8mm shaft of an electrical motor on a prototypical device. The expected torque is ~15 Nm and for the data processing I intend to use an Arduino. One requirement which ...
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0answers
22 views

Determining required torque for a chain and sprocket conveyor belt

I am working on a project for an electronics class, but need some help with one of the mechanical details. My job is to program a stepper motor to move a conveyor belt back and forth as specified. The ...
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2answers
34 views

smaller radius requires less torque?

I have been trying to build an electric go kart, and power requirements (as always) have been the problem. I have been going through some formulas to find out how big of a motor I would need from how ...
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0answers
98 views

Are these Solidworks Motion simulation results wrong? How can I go about verifying them?

I created a planetary gear set in Solidworks, and using Solidworks motion, I am trying to find the output torque when there are two input torques. I am trying to model a steady state situation, where ...
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1answer
51 views

How would you calculate the force needed to rotate along the x axis vertical earth anchor in dirt?

I'm a high school student who hasn't had the pleasure of taking physics yet, so forgive me if the answer is obvious. The problem I have involves an earth anchor drilled vertically into the earth. I ...
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1answer
39 views

What does the torque curve of an engine mean?

I have been trying to understand the torque curve and power curve of an engine. From what I have read and understood I know that the torque curve and power curve is has a peak at a particular RPMs(RPM ...
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0answers
17 views

Torque on a siezed part [closed]

I have a vertical load (F) acting at a distance from the edge of the cylinder. The load is acting on the cylinder via chunk of steel sliding across the surface of the roller. The coefficient of ...
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0answers
60 views

Why do cornering vehicles need yaw motion to turn when facts prove otherwise?

Considering what we know about rotation, laws of motion and using a few examples below, is yaw motion even needed for the cornering vehicle to turn? Vehicle dynamics claims the need for yaw motion ...
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1answer
44 views

What is the type of nut and tool to be used to unscrew?

Please see the two images. I marked a nut and locking part. what type of nut and lock mechanism it is? and what is the tool I have to use to open it?
1
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1answer
94 views

The name of this cross-sectional shape

What is the cross-sectional shape in blue called? The shape, used on the shafts, is used for torque transfer, gears or similar. The three arcs are same diameter as the ball bearing ID, so bearings ...
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0answers
31 views

How to calculate torque requirement for vehicle with Mecanum wheels?

What are the changes specific to mecanum wheels when calculating torque requirements for a vehicle. I have the data for the vehicles mass, top speed and top acceleration.
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2answers
25 views

Understanding input shaft torque for a motor without a shaft

I'm looking through this catalog at the motorized rotary tables and it says on page 114 that the maximum input shaft torque is 150 oz-in.The rotary table doesn't have a shaft so I'm confused as to how ...
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1answer
36 views

What to do to increase the hp of a gx-160 engine?

I saw a youtube video of an ultralight airplane with a 5.5hp engine that has been modified to produce 30hp. So how do I modify a 5.5hp engine to make 15hp+ of output?
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2answers
53 views

How would I calculate the torque need to move the trailer?

I want to find out how much torque will be needed from my motor if I want to pull a mass. So imagine a car towing a trailer.How would I calculate the torque need to move the trailer? I found the ...
2
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1answer
43 views

Calculating the torque requirements of the motor for a specific case

I want to use a DC 12/24V motor to rotate an assembly of glass tubes(image attached) through a hollow shaft of 25mm OD and 22mm ID, the shaft is supported on bearings on both the sides(assume minimum ...
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2answers
36 views

Theoretical maximum generated power for a given torque

Being an electrical engineer, I'm hoping someone will help me double-check my math. I have a small circuit that I want to power for years that consumes an average 10uA at 3V. I'd like to power this ...
2
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2answers
85 views

Calculate maximum acceleration of a car from rest (optimum launch)

First disclaimer: I have a background in math, but I'm no expert in engineering or physics. This is the first question I've ever posted and I think it belongs here, but please let me know if belongs ...
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0answers
22 views

Driving parallel shafts with single motor and torque required to drive them

I want to drive 4 shafts in parallel with a single motor. The shafts will be driven by chain drive using double single sprockets as shown in figure. If 1 kg-cm of torque is required to drive a single ...
2
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1answer
52 views

Stepper motor skipping steps

I'm using two stepper motors (datasheet below) to pan and tilt a platform. The bottom motor spins fine without the breadboard glued to the top platform. However, it behaves unpredictably and skips ...
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0answers
162 views

How does one calculate torque required to lift a quadruped body with gear-worm driven legs?

I am designing a quadruped robot with legs driven by gear-worm motors as opposed to hydraulics or pneumatics. However, I am stuck at the calculations for the motors, motor drivers, and power supply ...
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1answer
111 views

How to find required clamping force of bolts to prevent flange faces from twising due to torque?

I have a gearbox adapter that bolts onto a flange and I need to work out how much clamping force is needed to prevent the faces from slipping and keep the bolts in tension rather than shear when ...
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0answers
40 views

How to calculate the torque for the following problem:

i have some doubt in torque calculation for the following: I want to lift 25Kg mass(0.7m length) which is directly coupled with the shaft(5mm radius). so now the overall radius i have taken for ...
3
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2answers
46 views

How to calculate torque needed to stop a rotating beam over x seconds

I have a large boom of a radio antenna weighing $3,500 kg$ which is rotating at $0.5 RPM$. The antenna is a T shape and the boom radius is $14m$. The power to the motor is cut off suddenly and the ...
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0answers
40 views

Design torque calculation for an electric vehicle

We are building an electric vehicle. How is the required torque determined for our vehicle for a given total weight of the vehicle, highest vertical gradient and maximum acceleration? We need this ...
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0answers
33 views

Torque and Power Selection of DC motor

I have an object and I know the Inertia $(I)$ around the axis it needs to rotate at a constant speed $ (w) $. The operating acceleration torque of the load must be the product of Inertia and the ...
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0answers
7 views

How do I design an experiment to measure torque in series DC motor which uses leadscrew to transmit power?

I am designing a variable buoyancy system in which trapezoidal lead screw is used to transmit power from motor to piston using a connecting tube.The piston is used to pump oil in and out of the ...
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0answers
90 views

Extruder torque Calculation

I am wondering if there a formula or a guidebook in calculating the torque of an extruder. Currently I'm studying as an electrical engineering student and I need to choose an AC motor that's able to ...
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2answers
26 views

Motor coupling connection

I choose an AC motor (IEC) with frame number 71. The key on the shaft of the motor is $5mm,$, $4.23 mm$ and $6 mm$ in diameter. At other hand i cant't find a safety coupling (torque limiter) with ...
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0answers
56 views

How to regulate torque/RPM on an IWD vehicle

Generally, I'm interested in simple (DIY) electric vehicle design problems. I saw some photos of electric vehicles as in the following pic: or also you could check this youtube video. The vehicle is ...
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0answers
57 views

Torque for Spherical-robot

I need to build a spherical robot, and I'm calculating the torque, but I’m unsure about the results. It will be 3kg (hopefully less), radius of 22cm (it’s sphere of 44cm) and I wish it to move 0.50m/s²...
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0answers
17 views

Commercial electric motor with integrated torque sensor and torque control [closed]

Are there any commercial solutions for electric rotary motors with integrated torque sensor and torque control? I'm only aware of www.sensodrive.de which are essentially the drives used in the DLR/...
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1answer
98 views

How to design a casting machine?

I was wondering, what are the factors to consider or how to find the required technical specifications for the new machine? For example, if we consider a design of horizontal centrifugal casting ...
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0answers
23 views

Creating torsion for a small robot arm

i am trying to make a small, simple 3d printed robot with humanoid characteristics. i am working on its arm at the moment. it is being driven by a small sg90 servo motor which pulls the forearm about ...
2
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2answers
79 views

How much torque will I need to pull a 2250Kg load?

I need to use this to find a motor that will be able to pull at most 2250 kg at a 1.5 m/s pace. At peak acceleration, I would like this to accelerate at 0.5 m/s2. The area that the load ...
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0answers
34 views

Am I looking for the right motors for my RC car?

I am working on creating an RC car, and I tried doing some math to determine the minimum motors I need for the wheels, but I'm not sure if I am correct. Would the following specifications be adequate ...
0
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1answer
50 views

Pan and tilt mechanism

this is my first project that i am working on. I want to make a IR sensor mount using stepper motors. I seen this on youtube and would like to make a similar design. I plan on using aluminium ...
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0answers
54 views

Mechanical engineering, Please help me finding the torque and answering other doubts too

Below I attached two BLDC motor commonly used for skate boards, I am confused with the calculation of stall torque for these two motors,What i need to know, What is the maximum weight lifting ...
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2answers
105 views

Buoyance+torque generated force

I need to design a pivot arm which is pulled up by a float (buoyancy force). In the upper positions of the lever arm, there's a mass trying to pull down. The reason that I'm presenting this problem ...
3
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0answers
51 views

What is “Torque Break”?

I am looking at the specifications for thread lockers, and henkel/loctite specify "Torque break" and "Torque prevail" in in./lb. as shown in the link below: http://www.na.henkel-adhesives.com/...
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1answer
91 views

How do I connect a plate to a D-cut shaft?

i'm trying to connect a D-cut shaft to a plate for transmission of torque This is the motor that i am using with a 'diameter' of 4.5+/-.1mm My first question is whether I can use 5mm circular ...
2
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1answer
89 views

Determining required motor torque

I need to specify a stepper motor to drive a system of gears that isn't yet produced. I have almost no information about the system except that it will involve a stack of planetary gear sets with a ...
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0answers
53 views

Choose a DC Motor for a skateboard

My body weight and that of the skateboard is $M = 90\text{ kg}$ I want to move 10 meters in 4 seconds. $$\begin{align} x(t) &= (at^2)/2 \\ x(4) &= (a\cdot4^2)/2 = 10 \\ &= a\cdot16/2 = ...