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Hello engineers Hi everyone i'm new on this forum, since I have always been passionate about mechanics and renewable energy but I am not an expert I wanted to know your opinion on this new technology, which I found on the internet. It seems to be a new technology, a new type of renewable energy that uses water as a primary source, very similar to hydroelectricity. do you think it can work or instead it's just a rip off ? https://new-water-energy.blogspot.com/ From what I understood the system is based on a large vertical structure that exploits the difference in height between 2 water tanks. The water is then conveyed to a h…

Hello Engineer's I currently work in Manufacturing sector as a Quality Engineer in small scale industry but my dream is to become Design Engineer but i have a lot of confusions because of what are all the Skills should needed and I'm worked more 4.5 year's in Manufacturing sector is possible to shift design engineer or not. i should need a guidence let me know please.

Looking to hear from you all Which problem you want to solve as a mechanical engineer https://www.facebook.com/mechanical.engineering.community.forum/posts/10158761136938183

Since I am not an engineer, I am looking for recommendations on how to design/configure a pulley system that would assist me with lowering and lifting a "Lori Bed" into place. This is a Murphy-type bed that was designed without the installation of pneumatic hardware. The "legs" are curved so that the platform can be rocked up into place. I am imagining that a pulley could be installed over the wall frame and whatever additional configuration recommended would pull the foot of the bed up into place. I have attached 2 images that show the bed lowered for use and stowed away. I'm guessing the platform with mattress weighs approximately 100-125 lbs. Thank you in advance.

For a model, I am making I need to know the friction between a motor and a flywheel. The electric motor is on the side of the flywheel and the idea is when this motor turns the flywheel will start to rotate due to the friction between them. I however can not find a good way to calculate this friction. I could assume that there is no slip and use the static friction formula but then I would also not know how to calculate the normal force between the motor and the flywheel. Some help would greatly be appreciated.

Green Eye Environmet (GREE) is an company of water and environment. Founded in 2005, GREE activity is in the field of: consulting, designing, construction and installation the clean water treatment, wastewater treatment, air pollution treatment, plumbing design, waste treatment facilities (solid, liquid, air), supplying machines, equipment, chemicals... so that clean up and protect environment. GREE assembles a team of domestic and foreign environmental technology professionals was formally trained in water treatment and environmental programs at the University of Wageningen Refine - the Netherlands, the world's leading university in the environmental field. We work …

Greetings to all, I'm charan, pursuing in 4th year of mechanical engineering, i have confused to start my career in mechanical engineering, kindly if any have could help me, please.

The screw lift is also known as the screw transmission mechanism. It is mainly used to convert rotary motion to linear motion or to convert linear motion to rotary motion. There are mainly transmission motion, such as the feed screw of the machine tool table); there are also screw transmission mechanisms that adjust the relative position of the parts. The screw lift has a sliding friction mechanism and a rolling friction mechanism. The sliding screw nut mechanism has the advantages of simple structure, convenient processing, low manufacturing cost and self-locking function, but it has large friction resistance torque and low transmission efficiency. Although the ball scre…

How do I design a diesel engine with a specific horsepower if I don't know the torque and I don't know the mean effective pressure?

Hello Engineers, I recently joined a company where they dont have their own manufacturing plant. Our products are manufactured at different vendors and are directly shipped to customers. No inspection or quality check is done from our side. My role is to now set up some quality process in our company. I need help to prepare some kind of checklist/dimension inspection report for vendors to submit to assure their quality.

Everyone knows of Theo Jansen, Klanns linkage, Cheyushev....Boston Dynamics is building robotic dogs, Cheetahs...etc, and many garage mechanics have made mechanical spiders. The machine I am building is not as refined, and has some drawbacks, but i think its sturdiness and ruggedness makes up for it. I have built some models to test the concept, and I am mildly happy. But steel is the wrong building material, and many parts could be reduced or eliminated to save weight and complexity. The latest test run is human powered. Two cables run from pedals to the bar connected to the crankshaft. Eventually, this machine should be able to replace tracks in some vehicles, b…

What are all of the Parameters that completely define the geometry of a Spur Gear: Currently I have: Number of Teeth Pressure Angle of the teeth Tooth Thickness Tooth Fillet Radius Tooth Surface Roughness Tooth Width Gear Thickness Shaft Hole Diameter Gear Diameter The problem is I know that a few of these are related by an equation, and hence some are redundant. Can someone pls help me come up with the minimum list of geometric parameters that completely determine a spur gear's geometry?

Hi all, I am a final year mechanical engineer and I am desperately seeking an idea for a final year project any help would be so much appreciated. Thanks

Hello I am looking for mechanical engineer that can estimate the output of my mechanical system. My system is compound bow design I did. Compound bow is cantilever spring system with a wheel axle pulley bending the limbs. I need some one to estimate the power. They can use any tools like matlab, simulations, pure math, or etc. Can some point me to some one credible that does this. Thanks

Can someone help me to find the required RPM for cutter wheel motor? the diameter for cutter is: 69.95 inches cutter has 4 cutting edge. The desire finished product should be 0.3cm in length. The linear speed of the motor is 18.84cm/sec

Hello How to make mechanical oil seal

We are trying to put a spring-damper system on a drone to act as landing gear (very small scale, only about 300 grams total). We created a MATLAB simulation to describe spring and damper constants, taking into account drone weight, free fall height, and stroke length of the spring-damper. The simulation tells us k constants, c constants, damping ratios, and compression lengths for an input maximum acceleration, stroke length, mass, and fall height. Those are the constants we then need to find a spring damper (aka shock absorbers) for. The issue is, the datasheets associated with commercially available shock absorbers don't have these constants. I have linked two datasheet…

Hello everyone! I'm in the process of designing a new piece of equipment. I have the PLC and HMI programs already written. I have all my prox sensors on hand, and I have a rough idea of what the machine even looks like.. lol! What i don't have is a way to push room temperature chocolate and caramel sauce through a .250 SS tube around 20psi. I've looked at peristaltic pumps and diaphragm and tested several types. None will push the sauce though. Chocolate sauce is around 20k cps. Just to make things more difficult I would like a small pump, think drive through Espresso stand and how little room there is. I'm also limited on power. I prefer a pump that runs on 12 o…

Hello, I am trying to source multiple ultrasonic transducers for my project. However, I am unable to source them based on the specifications of my application. My goal for the transducers is to cause agitation in the water of the holding tank and hopefully clean the oil off the machined stainless steel parts. The dimensions of the tank is 72" L x 24" W x 12" H and holds around 71 gallons of water. The transducers need to be spaced equally and be fixed to the bottom of the tank. The problem however is that the transducers I found on the market do not hold enough wattage to power the system. Additionally, with a goal of 50 Watts/gal and 20-30kHz, I …

The idea is Lets connect on Zoom - once every week One of us can present a talk on a specific topic We can have volunteer team manging this event Identification volunteer speakers Creating awareness of the topic among members Hosting the meeting We cam improvise further on consecutive meetings Pl comment Would you like to Join us ? Would you like to be volunteer speakers ? Would you like to join us as a volunteer team ? We seek 100 comments to get it started? Would you like to contribute / sponsor for operational cost (Zoom)

Hello fellow engineers, I am looking for an accelerometer and most of them have IEPE output. So, I would like to ask you for a method to read out the data send by the sensor, using Arduino. I have seen IEPE cards which convert IEPE output into the analog voltage, however, they are over my budget. Therefore, I would appreciate it if you have methods to convert that signal to analog 0-5 VDC (maybe a circuit design). Thank you in advance, Ender

Hello What do you call people who calculate the output of mechanical system? They use simulation programs like matlab and mathematics. I am not looking for people who design or develop but calculate the output of system. Thank you

Hello fellow engineers, I am working with a 7 Tesla MRI system and I would like to measure the vibrations caused by the system during the scanning. I am looking for a sensor which is compatible with MRIs. Or, alternatively, I am looking for the vibration measurement methods for MRI systems. Would appreciate if you can share your knowledge in this field. Thanks in advance, Ender

Hello I am looking for a manufacturer or mechanic to build my custom compound bow. It doesn't have to be a big business. I would appreciate any help. Thank you

I need to mount a 375lb 64" x 64" and 1" thick panel to a wall. The wall is a standard 16" OC 2"x4" studded wall with fir studs and 1/2" sheetrock. The the 64" x 64" area of the panel is against the wall. The weight is uniformly distributed across the area of the panel, however about 300 lbs of the total weight will be concentrated approximately 1/2" to 5/8" away from the surface of the wall. I have in-hand a 64" length of 6061-T6 angle aluminum, 1/8" thick (both legs) that I would like to attach to the wall to support the weight of the panel. The angle would be attached with the vertical leg facing down such that the fasteners will be exposed when the panel is resti…

Hello all, I am looking for some design ideas. I need to do some compression testing and here is my testing platens: The platens are small (5mm*5 mm) and my samples are even smaller with the cross section of 3mm*2.4mm, so it would be difficult to both position them within the platens and align them with the center of the platens. I need to design a simple tool like a jig or something to help me position and align my samples. I can print that with a 3D printer. Does anyone have any design idea for such a tool. I'd really appreciate your ideas.

1.)Micro hole drilling machine 2.)Motorized jack 3.)Multipurpose Tool Changer 4.)Over Load Indicator for machines 5.)Pneumatic hag saw cutter 6.)Pneumatic Punch 7.)Automatic pollution control system 8.)Motorized wheel chair Share your project ideas

How should I finish fully dimensioning this piece? Scanned Document 2.pdf

Log-Log plots (x_0 vs w) why slopes are -1 and -2 when system goes to infinity in first and second order systems respectively.

It's easy to make and useful for your workshop. Step by step tutorial here: https://www.youtube.com/watch?v=euifSeORDoo

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heating

Hey, So I’m trying to extend the arm of this engine crane, so I can lift this 65kg roof tent. It says the maximum load when fully extended is 500kg. How would I calculate how long I can extend the arm and what material I’ll need ect? Will making the arm longer and therefore more of it being within the square tube where the arm goes into make me able to extend it longer too? Thanks!

Hi everyone im a student in mechanical engineering in greece and i have a project (thesis or ) to Design and construction of an experimental device for plates stress concentration using extensometers, and i was told as a start to search for some ideas of how it's structure and philosophy would be for a device like this. My problem is i dont know exactly where to search for devices like them in order to take some ideas and start my project. If someone knows at least something it would be very helpfull!!