It's often said that the moment of inertia of the transmission is very important to a light, racing car. So important that shaving a pound off the transmission rotating part is going to do more good than shaving a pound off the vehicle body. Can someone explain? Is it really significant? I think...
Does anyone know the size of a semitrailer transmission gear? (width, diameter)
Do you know the approx. cost of producing such a gear? It 'll need to handle 2000 ftlb of torque
Thanks in advance.
Does anyone know the size of a semitrailer transmission gear? (width, diameter)
Do you know the cost of producing such a gear? It seems gears are pretty expensive.
Thanks in advance.
Hi
I need to produce such a response to a load:
1.an constant acceleration of 0.5m/s^2 for 1/100 of a second.
2.The initial velocity is not important. What matters is that during that 1/100 second time interval, the acceleration is 0.5 m/s^2
I thought about using a cam to produce this...
I need to produce such a response to a load:
an constant acceleration of 0.5m/s^2 for 1/100 of a second.
The initial velocity is not important. What matters is that during that 1/100 second time interval, the acceleration is 0.5 m/s^2
I thought about using a cam to produce this response...
Anyone know the mass and moment of inertia for a typical automobile engine flywheel?
Does high frequency, low intensity flutuating shock load damages engine?
I don't think it does, but I can be wrong.
But I think an engine is already always under flutuating conditions, such as cylinder...
If I had a gear train with speed ratio of 300: 1
if an input speed into it is 0.3 m/s. Then the output speed should
theoretically be 1 mm/s.
Although in a gear pair each member has a whole number of teeth,
which fixes the transmission ratio in terms of integral number of
turns, the...
Hi, can anyone give me an idea of how significant are bearing rolling losses in a gear train (or more generally, a hard rolling body on a hard flat surface).
Thanks.
Hi, in the application I'm designing, there is a mechanism where a small metal piece strike another metal piece at a maximum speed of 1 m/s.
This will a create a sound. I wonder if it's possible to coat the metal piece with some kind of material (like rubber, or something better) that'll...
If a linear movement of a rack is 3mm. And this rack is connected to a
rack and pinion system, which is connected to a gear train with a gear
ratio of 1:60.
At the other end of this gear train is also a rack.
So basically, a linear movement (input) will theoretically cause a
linear movement...
One of the biggest problem with the CVT belt is that it cannot handle a
great deal of torque.
This problem seems pretty simple to solve since all it takes is to spin
the belt at a higher rpm for a given amount of power. For any power,
just spin the belt at whatever high rpm it takes to decrease...
I need an actuating system that is light/compact enough for vehicular use. Such as a small truck.
The actuator should be able to deliver a max. force of 20,000 lb (about 90,000 N). The maximum velocity is 0.1 m/s. The displacement is 0.03m. The actuator is to continuously adjust the position of...
There is a cam profile I don't know if it's possible to do in real life. For one thing, it needs to be highly accurately machined.
If we take the circular cam profile and lay it "flat", it would be like a upward parabola, so that if a point goes from the left to the right at ,say 10 m/s. The...
Hi, I wonder how the torque output graph of a 4cylinder engine looks
like. For example, when they say the engine delivers 200 ft lb of
torque at 3000 rpm. Is is an average? (because the output isn't
smooth for an IC engine). If it's not smooth, can someone tell me a
general idea of how far the...
How accurate can an tachometer be? in %
In addition, I need to measure the linear velocity of a linear movement. The maximum velocity is 0.1 m/s.
What is the best way to get a accurate measurement of the linear velocity as a function of time? (and not too expensive).
Is it possible to get an...
I'm currently designing an unconventional type of transmission. An engine drives a chain system. But it's essential that there is a "spring damper" between the engine (driving sprocket) and the driven sprocket (load). This will most likely take the form of an actuator/spring that the chain...
In an chain drive I'm design, the majority of the length of the chain will be slack and under no tension. In another word, between the driving sprocket and the driven sprocket, the chain the is under tension (load), but for the rest of the chain, the chain is slack.
But the slack chain is very...
Hi,
I'm designing an unique chain transmission drive. It's unique because it uses 2 chains, rather than 1. Basically, one driving axis have driving sprocket A and B. Then one driven axis have driven sprocket A and B.
Then, a chain A will run between the driving sprocket A and the driven...
I have a design question.
Here's a basic description of the problem:
Imagine a heavy box on a slope. The mass of the box can vary. But the steepness of the slope is constant. In the application, the box needs to be on different points along the slope at different times. The speed it traverse...
Hi, I'm new to actuators. but I have an application now that requires
one.
The maximum thrust of the actuator needed is 5000 lb. Most of
the time, it doesn't have to move, but rather just "hold" a 5000lb
load. The maximum stroke needed is 4 cm. The maximum velocity needed
is 0.1 m/s.
Can...
