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If I'm going to use a solar power, do I still need to buy a power supply?

Hello all, I have recently started studying acoustic levitation and I would like to lift an object that is about 2.5 pounds about 4 inches. Surface area is about 5in x 5in. I am not very knowledgeable on the subject and I have had little success finding ways to calculate the decibel level, frequency, and amplitude necessary to accomplish this task. Any information would be helpful. Thanks, Purdue_Hoosier

Hello Guys, Which software is best for structural analysis and design? Tell me, please. I'd appreciate hearing your opinions.

Hello Guys, I have a lot of confusion about which is the best option: Revit or Staad Pro? Many reviewers felt that Revit met the needs of their business better than STAAD.Pro. When comparing the quality of ongoing product support, reviewers felt that STAAD.Pro was the preferred option. For feature updates and roadmaps, reviewers preferred the direction of Revit over STAAD.Pro. Which option is best for design and analysis? Please share your thoughts with me.

Hello guys, i was wondering what are these parts name. The black one goes to the water tank and the white one goes into the host base. When the water tank is installed on the host base, the white part push the black part up allow water to flow through. Here is an overview of the water maker.

A vertical plate and a horizontal plate are suspended in an open room. Both are heated to the same temperature. Which one will cool first? Why?

Dear engineers, need your help! We have to clean 40 high cube containers and we want to use recycle water process, which will collect water in containers and then supply into filters. We think to use pipes with suction water nozzles, which will placed in containers during cleaning process by water. I would like to discuss it and may be you offer alternative ideas how we can collect water in containers?

Slurry pumps are widely used in mining, metallurgy, power coal, building materials, chemical industry, environment and other industries to transport solid-liquid mixtures containing particles. The slurry pump relies on the motor to drive the impeller to rotate at a high speed, which generates centrifugal force and sends the material out. During its operation, the overcurrent parts are subject to the erosion, wear and corrosion of the material. Therefore, the wear-resisting and anti-corrosion performance of the overflow parts of the slurry pump is an important indicator to measure the quality of the slurry pump. For a long time, my country has been researching and developi…

Hello Everyone, In pump industry we come across some terminology very often. In that one of the important term is NPSHr by pump. Generally NPSH is mentioned in m. One client asked whether NPSHr issued by Pump manufacturer is in absolute or gague pressure? If any expert can show some light on it then it will be highly appreciated.

Hello everyone I am a student. I want to know more about railway engineering. What are the types of railway engineering? Can I pursue railway engineering? Which field will I choose for my bright future? It is the best option for my career. I will appreciate your suggestion.

Good day everyone, I hope you are all doing well. Could you please advise on how to acquire the best skills in civil engineering? As a civil engineer, I'm having difficulty finding a skill in civil engineering that can meet some of my requirements. I'm wondering if there are any internet resources (courses, books, or channels) that offer this type of information. I'll be grateful if someone could help me and the large community of engineers who aim to enhance their designing skills. Regards.

Hi you all! Im new in the world of mechanical designing. I need to design a part that includes thread in it and I have a few questions. 1. When I’m designing a thread in solidworks (let’s say M22x1.5), do I need to make the outer diameter 25mm or do I need to make it smaller? (I have ISO table) 2. If I need to design it smaller (let’s say 21.98mm is the maximum allowed) and the minimum is 21.88, when I making the drawing for manufacturing do I need to to make the diameter in size of 21.93+-0.05 or I can I say 21.98 (Tol -0.10). What is the correct way? Or both aren’t correct? 3. There is a table for good and bad tolerance between a bolt and a nut?…

A Caterpillar's weight is 150 tons (i.e 1,471,050 newtons). Can this same Caterpillar's engine, hydraulic drive mechanism and hydraulic motors, if modified, be used on a rotary (stationary) equipment (similar to a conveyor system) which requires a torque of 950,000 Nm? Assuming the rotary equipment has a pulley of one meter radius and the four hydraulic wheel motors of the Caterpillar are arranged and positioned at equal distance around the pulley to drive it via chain or gear mesh. My question again is: Can this drive mechanism of the Caterpillar which can move 1,471,050 Newtons with ease operate the rotational equipment requiring a torque of 950,000 Nm?

Hi, I am Michael, a scientist with a background in molecular medicine. I am looking for mechanical engineers with experience in automation for a funded project which involves development of a novel biomedical device. Preferably Indians. If you are interested, do mail me at drmichael.prashanth@gmail.com.

Hello everyone, I am a student. My friend says that primavera is best for careers. Is this correct? What exactly is "Primavera P6"? I'm not sure why and where we use Primavera. Is it necessary to attend Primavera P6 advanced courses? This course is useful for my career growth. Please recommend me.

Hello everyone, I am pursuing civil engineering. I am confused about which civil engineering software is best for my future career. Which civil engineering software online courses should I take? Please recommend the best software course for me.

This is a simple game .. every one who comes here has to write one line on centrifugal pump. which has to be different from the above already written lines.... Are you ready ?

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?

A rocket is released from a fighter plane at an angle upward 20° to the vertical with an accelerationof 8 m/sec2. The gravitational acceleration is 9.1 m/sec2 downward. Determine the instantaneousacceleration of the rocket when it was fired. Textbook Answer: 9.849 m/sec2, θ = 49.75° to vertical But I am unable to arrive at the answer..

What is Autocad??

Hello everyone, Please suggest to me how to make the best highway drawings using AutoCAD. Which software is best?

Hello everyone, Detail step design of multistory buildings in Staad Pro and Etabs with Earthquake and Wind Load Effects.

How to calculated correction balance weight single plane methode https://m.youtube.com/watch?v=pEXKuyVCkNg

Under what conditions is heat transfer one-dimensional?

Hi all guys I'm new on this forum, and I write this post to ask you for help on a mechanical engineering, hydrodynamic, advanced level problem that I am not able to solve and I hope that some of you certainly better than me can to help.The problem is the following: (I enclose the hydraulic diagram, sorry I know it is not accurate, I did it again on the fly on the PC by copying it from the workbook, unfortunately it is not to scale but it should still be useful to understand the exercise). Find the amount of force that must be applied to the hydraulic piston, placed in the blue tank at the bottom, containing 48 thousand liters of water to empty it in 25 …

Hello, guys! Which software is best for structural design and analysis? Could you please explain it to me in detail?

Greetings to all. As a student, I study civil engineering. I am confused about which software we can use in structural engineering. What is the difference between SAP2000 and Staad Pro? Kindly guide me.

Hello everyone. I am a civil engineering student. Recently, I have been working on a structural drawing project. I don't have much knowledge about this work, so I request all to suggest me the best books, articles, codes, manuals, etc. that I can go through and get knowledge about structural engineering. Also, please suggest the software used. I'd like to learn more about structural engineering from you. I don't know whether it's good to take this field. What's the future and how will my career be in this? As I have very little knowledge about this field, kindly do guide me.

Good day everyone, I hope you are all doing well. Could you please advise on how to acquire best skills in mechanical parts, as a mechanical engineer I find some difficulties to find the mechanical parts that can fulfil some of my needs, for example the revolute or prismatic links, I Believe it's a matter of experience through the studying of many real mechanism and trying to identify what does each part of the mechanism. I wonder if there are some resources on the internet(course, books, channels) who provide these kind of information? I'll be grateful if someone could help me and help la large community of engineers who aim to enhance their designing skills. …

Hello, I have a quick question surrounding pressure regulators. I am just wondering how you would choose the correct pressure regulator type for an oil & gas application? I have been looking online and spotted this page on Fluid Controls which explains pressure regulators in detail, but I am trying to ascertain what exactly I need to consider when choosing a pressure regulator? Thanks in advance.

Using dynamic relaxation numerical technique (DR), it was decided to undertake some study cases and generate new results for uniformly loaded laminated rectangular decks plates. The plates were assumed to be either simply supported or clamped on all edges. The effects of transverse shear deformation, material anisotropy, orientation, and coupling between stretching and bending on the deflections of laminated plates are investigated.IJBE-10-1-2022_Elmardi_Slimane_79_106.pdf IJBE-10-1-2022_Elmardi_Slimane_79_106.pdf

With fossil fuel energy on its way out, I have been trying to come up with a way to save the energy we now use. Here is what I came up with. May the rock-throwing begin. I prefer option #2, how about you???

Hello, I am a Mechanical Engenieer brazilian student and I trying do design a project to my self as a way to improve my knowledge and I would like to know if someone could help me. I am trying to desing a Thermoeletric system with a boiler, turbine, pumps, condensers and so on. As a conceitual project, I designed a system using biogas. I searched that the city I live produces 250.000 kg of trash per day, with 50% of it beeing organic, with 5.200 kg/h. I also searched that 1000 kg of organic trash produces 250 m³ of biogas and 1m³ of biogas generates 6 kwh. So it produces 7.800.000 J/s. I saw a turbine that uses 1…

Steel with heat treatment (for example AISI 4140 Q+T) has different tensile strength with different diameters of the material, and also different tensile strength in a same diameter according to distance to the center of the material, like Jominy test demonstrates (hardenability). since the bar has different YTS along the diameter, which yield tensile strength should I use for the calculation of a shaft? Moreover, why this image attached shows differents curves with different specimen diameters ? Thanks.

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