Questions tagged [torque]

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Equation for the spring constant of an orthotropic, rectangular wire spring

I hope I can get some help with this problem as I've been struggling with it for a long time. I have a helical tension spring with radius $R$ and a square wire cross section and made of orthotropic ...
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0answers
14 views

Torque required to move the skid steer robot

I have a 4 wheel skid steer robot. My motor can deliver up to 6 Nm with a gearbox efficiency of 70% up to 170 rpm. I want to find out whether I will be able to make a pivot turn and move. So I ...
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1answer
41 views

understanding required torque for a servo

Good morning. I have been reading the threads about "Understanding required torque for a motor lifting a weight" in hopes it would apply to my situation. I would like to utilize an R/C servo to rotate ...
-1
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1answer
40 views

Power transmission via a SHAFT

Recently in the class of MACHINE DESIGN our teacher gave us a Homework to find out: Whether or not a single SHAFT can operate at two different magnitudes of TORQUE? The actual question by our ...
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0answers
28 views

Mean diameter of the collar when calculating the raising torque

TL;DR Is it possible to calculate the mean diameter of a collar? Can I ignore the collar's component when calculating the raising torque? I have been trying to answer this question, Z axis: Stepper ...
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2answers
56 views

Motor torque calculation, about the units

This link shows a motor torque, power, and speed relationship, as shown below: With regards to its units, how does kW and RPM become equivalent to N.m?
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0answers
21 views

Jam nut holding torque

I've got a leadscrew that has an M5-threaded hole on the end. The original purpose of this hole is to accept a screw with a slightly-oversized washer, which prevents the "nut" (don't know the proper ...
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1answer
51 views

How much torque do I need to lift 1,000 pounds?

So, I have a 1,000 pounds load. What would be the required torque in inch/pounds to lift that load for a motor? If the motor is installed at the center of the radius generating that torque, does it ...
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1answer
31 views

Would some manufacturing processes be more efficient if driven differentially by a single motor, up to ~150 kW, than multiple lower-rated motors?

I'm writing a discussion paper on the potential energy efficiency benefits of integrating different manufacturing processes by co-location on the same site. One possible field for integration is in ...
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1answer
66 views

The torque I need to lift the device and correct gear ratio for the device to be as fast as possible

The device have to climb a pipe vertically. I have a DC motor with power rating 21.2 w, output speed 13360 rpm and maximum output torque 154.4 gcm. My device is 1 kg and I have wheel with 0.012 m ...
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2answers
80 views

Calculating proper specs of DC motor for rig driven on the rope

I'm trying to build a cablecam, a picture that serves only for illustration is: The DC motor is 48V 5000W 6000rpm 6000 oz-in stall torque 85% effiencity 0.066 Ohms Resistance 135Kv (RPM / Volt) ...
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1answer
39 views

How much torque is needed? [closed]

If we wanted to open gate with maximum force that man can apply at distance of 1m from pivoted joint. So I want torque to determine motor and gearbox that can be used to automate gate.
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1answer
44 views

How can you calculate the torque and speed of a single output gear being driven by two different input gears?

I am building a gearbox that needs to lift around 50lbs very rapidly. I already have a single planetary gearbox that does the job in around 7-10 seconds, but I would like to cut this time down ...
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1answer
60 views

Choosing a proper BLDC motor for lab centrifuge

I'm trying to make a swing rotor centrifuge and find a proper BLDC motor to reach 6000G with capacity of 4x50ml Falcon tubes. I did the calculations roughly but I'm not so sure about them and also ...
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1answer
29 views

How to increase kg per hr capacity of screw press to achieve the same applied pressure per unit volume of raw material?

The current capacity of screw press is only 100 kg/hr. Motor is 22kw, shaft RPM is 16, applied torque is 13,120 Nm, theoretical volume is 0.000967 cu m. Am I correct to say the press is going = 13,...
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2answers
190 views

Torque required to launch a tennis ball

I am trying to find out if the 12 V DC electric motors that I have are powerful enough to launch a 100 g tennis ball 30 m away. The tennis ball is put down a pipe and ends up wedged in ...
1
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1answer
31 views

Torque computation for different attachment point

I have a pretty basic question but I would like to be sure of what I think. I have a setup like the one in the figure. I have two motors which can generate two forces $F_1$ and $F_2$ perpendicular ...
2
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1answer
45 views

Understanding the torque of a motor/gearbox combo

Imagine a typical DC motor / planetary gear combos. Is my thinking correct: Say you have a 100 kg mass on a frictionless surface. The gearbox output shaft has a 0.10m arm with which you push the ...
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1answer
60 views

How to use the moment-of-momentum equation for water flowing through a pipe?

I am having a lot trouble understanding this problem, I don't even know where to begin or how to articulate my difficulties, but I will try my best. Is the question asking to find the torque ...
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1answer
53 views

Calculate hydraulic torque from motor HP, hydraulic pump and gearbox

I am curious about the design considerations for a hydraulic system. Let's say you have a 3HP 1200RPM motor you also have a hydraulic pump that's rated 4LPM and pressure of 40MPA rated for 40RPM MAX ...
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2answers
50 views

Reacting Propeller Torque?

A motor is used to drive a shaft that is geared through 1:1 bevel gears to a propeller. The shafts are mounted on bearings in a hard casing that is attached to a 2nd ground. I want to know if the 2nd ...
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3answers
82 views

Why is the rear wheel of the Penny-farthing so small?

I see a lot of people asking why the Penny-farthing's front wheel is so big, and I think I've read enough materials to understand why (at least, at the most basic level). But even so, I feel that the ...
2
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0answers
57 views

Performance of RC car under different gear ratio, measured data vs hypothesis

Assuming the driveshaft of the rear wheeled drive RC car follows the linear DC motor theory for stall torque and no-load RPM, also voltage supplied is constant and no inductance as well. Note: the ...
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2answers
69 views

Resulting torque on the cross section

I have trouble solving part A of the question. I thought the resulting torque would just be 10k * L of the beam.
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3answers
67 views

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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1answer
50 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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0answers
55 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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1answer
90 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 ...
2
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1answer
38 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
349 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 ...
2
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2answers
44 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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2answers
66 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
51 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
19 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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1answer
48 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?
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1answer
122 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
82 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
33 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 ...
0
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1answer
80 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
280 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
204 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
40 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
221 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 ...
2
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1answer
177 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 ...
0
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1answer
557 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 ...
3
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2answers
79 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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2answers
30 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
125 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
43 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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2answers
126 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 ...