# Engineering Systems & Design

- How to design and manage complex engineering projects. Design Process, Concept Evaluation, Documentation, Sims
 Meta Thread / Thread Starter Last Post Replies Views Views: 109,403 Announcement: Follow us on social media and spread the word about PF! Jan16-12 Hello all, I was wondering what kind of references design engineers like to have handy? So far, I have ... May5-14 09:43 AM koolraj09 15 11,694 So as a side project for my professor, I'm supposed to 1) build a recirculating simple pipe bend 2) experiment and... Y 10:04 PM Greg Bernhardt 1 779 Hi All, May I know anyone from here have experience in using Bentley Substation?I've encountered some 3D Modelling... Y 10:04 PM Greg Bernhardt 1 1,399 Picture explains much better than words can (see attachment) the idea is to monitor the level between the two... Jul25-14 11:54 PM spectastic 4 362 I am going to design 10 kw, Permanent Magnet, Direct Drive Wind Turbine Generator. The main problem is, how to... Jul21-14 05:41 PM Baluncore 7 2,543 hello. I am asked to give a lecture on double pipe heat exchanger . I have studied books like process heat transfer... Jul21-14 03:09 PM spectastic 1 288 I need to find a high capacity (60-90 gpm) pneumatic pump that is able to pump 2.8 cP (fairly low viscosity) dirty... Jul21-14 03:02 PM spectastic 8 710 A square tube beam, 4in x 4in x .1875in thick. Length= 36in Cross sectional Area= 2.859in^2 A36 steel How do... Jul21-14 02:09 PM blake92 5 855 Can someone explain what the PID robust methodology is all about in simple... Jul20-14 02:07 PM skeptic2 5 1,878 Dear all, I am mechanical engineer with no background to circuitry and electronics. I am trying to connect a flow... Jul20-14 12:31 AM ahfa 19 3,434 Hello everyone. The purpose is to be able to build a mousetrap with a trigger mechanism to initiate the trap. In... Jul16-14 11:06 PM NascentOxygen 2 1,367 Hello, I am working on a project where I am trying to take a photo of paper that I insert into a slot of an iPhone... Jul15-14 05:07 PM NascentOxygen 14 3,631 Hi! I would like to change my work truck into an electric hybrid. I have all the electrical portions of this project... Jul3-14 06:57 PM berkeman 7 3,312 VLSI testing is process that is used to determine that chip is good or faulty VLSI chip is tested by test equipment... Jul3-14 01:37 PM jedishrfu 3 1,802 Hey Guys, I'm working on a Stirling engine to show my nephew. I have made one before that runs off off coffee water... Jul2-14 03:54 PM jambaugh 1 1,936 Dear all, is there anybody knows how to set a 2 degree-of-freedom movement in ANSYS Maxwell 2D transient model? I... Jul2-14 07:49 AM samsoton 2 2,188 I want clarity on STC rating that is 25kA or 16kA or 18.4 kA. If I want to change my Specification of 12kV Indoor... Jun30-14 07:06 PM Baluncore 3 2,029 I want to simulate the absorption spectra of gold octahedra when irradiated by a light source, according to the... Jun30-14 03:50 PM Greg Bernhardt 1 2,143 Is anyone here familiar with ANSYS Fluent or CFX? I have some questions about creating a simulation of subsonic flow... Jun29-14 12:13 PM Aero_UoP 2 2,509 Could someone help Please? I am trying to mount a driveshaft to an electric motor for a Segway project and... Jun29-14 02:36 AM Gurjit 7 3,575 I'm in the process of prototyping a monitoring device. When certain conditions are met, I need to send a SMS or... Jun27-14 03:35 AM Vectorspace17 5 1,870 I have been working on a solenoid for different applications, but cannot find the desired output. I have a bobbin or... Jun24-14 05:26 AM NascentOxygen 1 1,641 Hello people I need your help. I am kind new to refrigeration and I wanna design one. I have a waste exhaust heat... Jun23-14 11:02 PM gloriasakins 4 2,834 what is the formula for force between current carrying solenoid (both cylindrical and toroidal ) and a permanent... Jun16-14 01:03 PM M.Kalai vanan 2 2,036 i understand that heat acts as a wave,it has some variations depending on the frequency i believe.we all know we can... Jun15-14 05:47 PM nopunyntended 14 2,346 I am working on an experiment where I need to measure the Delta T across a heat ex-changer. I have two independent T... Jun10-14 06:37 PM dlgoff 1 1,813 Hi, I perform my post-processing and analysis of data from silvaco in matlab and would like to export values from... Jun10-14 02:05 AM $mathieu 1 1,919 Hello. I'm trying to design a AC to DC LED driver with PWM dimming. I have a design that I can use with the LM3406HV... Jun7-14 05:23 PM rbelli1 1 1,799 Basically I'm an organic electrochemist. Can any nanosized magnetic materials classified under nanodots ? If so what... Jun6-14 05:00 AM$mathieu 1 1,958 Hello All, I was given a problem today that I could use some guidance on. I have a compressed air pipe flowing... Jun5-14 07:47 AM Q_Goest 1 1,794 when designer design new circuit, they think whats the requirement step I 1)power dissipation should be less... May31-14 05:08 PM analogdesign 3 2,115 I've got a 300 liter water heater that has an electrical element (14 kW). The issue is that the element is positioned... May29-14 01:15 PM Averagesupernova 3 1,883 I am working on a home made electromechanical actuator to replace the vacuum actuator on the front axle of my Jeep... May26-14 10:29 PM Mech_Engineer 1 1,963 Hello, I am trying to develop a software control algorithm to compensate for oscillator imperfections/frequency... May26-14 08:24 PM AlephZero 1 1,882 I'm setting up an interrupt service routine, but I'm unsure which ISC bit setting I should use. ISC bit settings: ... May23-14 09:02 PM Baluncore 1 2,090 There are two ways I'm used to allocate memory dynamically. int * array = malloc(10 * sizeof(int)); But this... May17-14 11:09 PM jedishrfu 1 1,933 I'm trying to use the function pinMode so that I can use an analog pin as a digital output pin. But when I debug the... May17-14 03:49 PM AlephZero 1 1,881 My friend and i were discussing this device with which inly one person can hear what you say. It doesn't have much... May15-14 02:30 PM jedishrfu 1 2,016 Hello, does anyone know how much is the minimum required points that should be connected from the following units to... May13-14 05:38 AM russ_watters 2 2,070 I am working on a new concept design and would like some suggestions on which Lasers(s) would be most appropriate for... May11-14 01:59 AM SteamKing 3 2,186 I have a problem with my switch mode power supply, smps. It creates audio sound when I power it up, especially at... May9-14 10:33 AM ElectroPhysics 9 10,619