Dynamometer Definition and 20 Threads

Hi, I have to measure the HP of a small engine at the crankshaft. The only usable things are. A dinamometer A brake disk An rpm meter The brake caliper is floating so when we apply de load it pull the dinamometer. The rpm meter show the revolution during the load apply. It can works? How I...

Homework Statement Hello! I have a physics problem that I can't solve. I'm supposed to describe how I can calculate the mass when knowing the µv (I don't know the english term but I'm guessing friction...something (friction when the object is not moving)). You are allowed to use a dynamometer...

We have an automotive swivel seat that turns from the initial seating position to the final position outside the vehicle (90 degree swivel in 15 seconds). We would like to calculate the torque required for rotating the seat along with the person. We have calculated the inertia of the movable...

Can I use a Clutch Plate assembly along with drive shaft to connect Engine & dynamometer? I am facing an issue where in CRDi engine, at a position of accelerator pedal RPM is increasing from 1300 to 2000 without any change in accelerator pedal position. And a lot of vibrations takes place at...

i am working with a Honda Gx-35 engine (1.2kw and 1.9 N-m) for a project and wish to make a dynamometer to measure its torque and hp.Was wondering whether an electric motor or an alternator should suffice my needs? wont the voltage regulator in the alternator keep my o/p constant? please help

Homework Statement A former student of mechanics wishes to weigh himself but has access only to a scale A with capacity limited to 400 N and a small 80 N spring dynamometer B. With the rig shown he discovers that when he exerts a pull on the rope so that B registers 76 N, the scale A reads 268...

So I read that in a motoring test (to test the engine power), the engine is run to the desired speed by its own power. The power is absorbed by an electric dynamometer. Then, the fuel supply is cut-off and the dynamometer is converted to work as a motor to drive the engine at the same speed...

I'm looking for someone who can help me calculate the torque there will be transferred to my couplings between the rollers and to my belt connecting the 2 set of rollers. I have drawings of it all including inventor pro 2011 drawings/file of it all putted together without the belt and couplings...

Hi, this is my first post here. I have come across this site many times when looking for help and have found the most helpful information here. Thanks! I am creating a spreadsheet that you can input your vehicles Cylinders, Piston Diameter, Stroke, Displacement, HP, Torque, Size, Weight, Tires...

Homework Statement What does this dynamometer show? http://imageshack.us/photo/my-images/826/0uqz.png/ That's pretty much the entire problem, I realize that this is utterly pathetic to post here but I lack the very foundations in physics and after googling this "problem" I still...

I am wanting to create my own Dynamometer for my physics class. (Im a student by the way.) I want to leave something behind. This teacher has really helped me get through this class and make it very enjoyable at the same time. And for the class we are suppose to make a project or test a...

Hello, I was wondering if someone could help me understand this situation. I am designing a motor/generator dynamometer, which is to be arranged as shown in the attached picture. There is a fixed high power DC motor transmitting power via a Syncronous / Timing belt to a motor which is...

Homework Statement I am trying to help my lil bro (12 yo) with some physics. I've never been good in physics and now it's been more then 10 years that I've been to elementary school. I've helped him with some stuff but there's this one question that i don't understand and there's very little...

Please help We have an old Amsler Pendulum Dynamometer type PM 103 tensile testing machine which has been working admirably for many years - recently we started having problems with slight variations in loading rate and a tendency for the pendulum to bounce when loading is applied/removed...

Hi guys. I'm interested in building a dyno to test modifications to small engines (lawnmower engines). I've found this old topic: https://www.physicsforums.com/showthread.php?t=117800 But I'm having some trouble picturing the design. I like the idea of using an electric motor and an...

does alternator work as dynamometer?? i'm doing small engine test rig to analyze it performance characteristic. then,i connect the pulley to alternator.thing that i need to considered is power that can produced from alternator must be larger that small engine.from engine specification, it can...

Hi, I'm currently involved in a project designing an inertia dynamometer. Were looking for a suitable tachometer that we can use to measure the rpm with, it should give a voltage output in the form of an analogue sinusidal signal. This is so we can interphase it with a p.c. Does anyone have...

hey all, as you may or may not know, I am playing around with some different engine designs for a project, and I am using small engines, under 5 HP, and I was wondering if anyone had a suggestion about how to get a reading so I could determine what gave me more power vs what could hurt...

A meterstaff who weights 0,12 kg is moveable around of it's ends. In the other staff it hangs a weight of 0,50 kg. The staff is hold in a line by a dynamometer, who is fastened in the middle of the staff. What does the dynamometer show? I take 0,12*0,50*6,67*10^-11 =4,002*10^-12 / 1^2...

Hi! Really simple question: Two people are pulling on the ends of a dynamometer, each with a force of 25N. What force does the dynamometer display? Textbook answer: 25N I'm having a difficult time understanding this conceptually. Could anybody explain why the answer is 25N? Thanks...