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Found 32 results

  1. Hello all, I'm doing a motion analysis of a Bicycle frame where I have to analyze a motion of the frame and find the force on suspension entity also to find the displacement of suspension entity. I want the Rod marked near the "1" should move along the curve. I've tried a lot but ended up wrong. Please, provide me with proper guidance. Please check whether the constraints I've given is correct or not... Please, refer the figures below... I want the rod 1 to move along the curve and reach position 2 and comeback the same. Please, help me to select the proper interpolation and Independent variable. Thank you for your valuable time... Fig. 1 Fig. 2 Fig. 3 .
  2. Hi techs! I've created a Ball & Beam model on MotionView to explore a co-simulation with Activate. Many of you may have seen this on undergraduate/master class studying on frequency or even on time domain. I've decided to do something different, creating the model on a multibody environment. The control is a simple PD, where I've calculated using analytical method (Kp +Kd.s) with a specified overshoot and settling time. You could explore changing its values... I'd like to thank @Livio Mariano for suggesting me his own low-pass filter in a way to filter the input displacement signal (without it I was having a problem to converge). I've created a short video to show you how it works, and the files are attached. Enjoy! João. Ball_&_beam.zip
  3. Hi, can Non Linear Finite Elements (based on Absolute Nodal Coordinate Formulation or ANCF) be created with Hypermesh preprocessor?
  4. Hi all, I am trying to run a multibody simulation in Motionview. However, I am getting an error which I have never seen before and hence, cannot guess what to do. A snapshot of the error is attached. It goes like "No Element found at line 9". However, my simulation is only with rigid body with contacts, joints etc defined. Has anyone ever experienced such an error? If, yes can you please help me to solve the problem! Any help would be appreciated and thanks in advance!
  5. Hello Sir, I am using motionview/motionsolve to simulate the scissor link mechanism as below image. I have represented the revolute and transnational joint at the link end location. Please share the preferable friction represent. I have used the default properties at the joint friction but I did not get any output force due to friction. Please share your comments. Thanks and Regards, Yuvaraj S
  6. hi, I modeled a gear and want to find out angular velocity of the gear, how to do that,should I include any expression and how to do with that Thank you Simple_50teeth_gear_model.h3d Simple_50teeth_gear_model.mdl
  7. I have been carrying out the analysis on the full vehicle and have changed the hard points, mass, spring, moment of inertia (taken from Tools>CG\Inertia Summary) and preload values.I got the following errors in the solving process. Which parameter do I need to take care while carrying out the analysis. INFO: Starting SMP run with up to 4 threads. WARNING: Error in principal J for body [id=10306]: Ji+Jj<Jk! J=(500, 500, 10000) in body CG principal inertia frame. Execution continues but the results, if dynamic analysis, may be incorrect! WARNING: Error in principal J for body [id=20306]: Ji+Jj<Jk! J=(500, 500, 10000) in body CG principal inertia frame. Execution continues but the results, if dynamic analysis, may be incorrect! WARNING: Error in principal J for body [id=10307]: Ji+Jj<Jk! J=(100, 100, 1000) in body CG principal inertia frame. Execution continues but the results, if dynamic analysis, may be incorrect! WARNING: Error in principal J for body [id=20307]: Ji+Jj<Jk! J=(100, 100, 1000) in body CG principal inertia frame. Execution continues but the results, if dynamic analysis, may be incorrect!
  8. How to build a vehicle custom template in motionview?? We are building three wheeled vehicle with two wheels at the front and one wheel at the rear.
  9. Hello, I am trying to use leaf spring builder in motion view observing tutorial. I have followed each step as given in tutorial. However I am not able to create .mdl file after I hit build button. I have attached .lpf and error logs. Please find attached files and give suggestion where I am committing error. Regards, Pratik test_leaf_1.lpf 4Feb.lpf test_leaf_1.log test_leaf_1.mdl test_leaf_1_pre1.csv test_leaf_1_pre2.csv test_leaf_1_pre3.csv test_leaf_1_pre4.csv test_leaf_1_Temp.log test_leaf_1_Temp.xml
  10. Hi, I'm currently trying to use the FMI-Standard in order to calculate the frequency response of a mechanical System in Matlab/Simulink. This is my current approach: 1. Import a stp-file in Hypermesh, do the meshing and define a material and property (OptiStruct-Solver) 2. Export the Hypermesh-Session as fem-file 3. Create a flexible body in MotionView using FlexPrep and the fem-file from step 2 - Synthesis Type: Craig-Bampton - Cutoff type/value: 15 highest Modes - perform stress and strain recovery 4. Define a torque as input and an angular displacement at the same point as the output, by using SolverVariables and SolverArrays 5. Export the MotionSolve-Model as FMU After defining the necessary environmental variables and importing the FMU in Simulink the simulation works fine, but the frequency response isn't plausible and it seems to be independent of the chosen material in step 1. Can you imagine a possible reason for that? Thank you in advance! The problem seems to be, that the rotational stiffness is infinite, no matter which material I choose, even though the translational stiffness is not infinite. Has anyone of you experienced the same problem so far? Thank you in advance!
  11. Hi to everybody, i would like to perform a fatigue analysis using this method: -run the dynamic analysis in Motionsolve in order to extract the load spectrum -run the fatigue analysis in Optistruct using that load spectrum the problem is that the dynamic analysis needs 150000 seconds, and this means an enormous amount of time in Motion solve,it's almost impossible. So is there any other way i can perform this type of analysis? Thank you.
  12. Hi everybody, in my model a rectangular panel is deployed rotating on a hinge actuated by a torsional spring. At a definite angle I would like to have the panel latched. What is the best possible way to model such a mechanism? Thank you!
  13. Hello, I am working on model of pressure plate which have axis offset. A shaft passes through it. when pressure applied (in x-y) on the pressure plate due to the offset one side of pressure plate will have more pressure. Which causes rotation on around z axis. As the shaft passes through z-axis. Shaft and pressure plate are bolted. As pressure plate will rotate it will tend to rotate the shaft. I want to find out for particular pressure how munch is torque is generated. please mention method to follow to get torque as an output How to solve this problem Thanks. 
  14. Hi, What is the language of "User Subroutines" in MotionSolve? What kind of things that we can do with the user subroutines? Thanks in advance! Best Wishes, Jay
  15. I am working on FSAE model, for my college team, I have come to know about vehicle library via YouTube video here is its URL I cant find the template used in this video in 53:58 named "Direct Actuation Suspension". Where can i get it please? Thanks in advance.
  16. Hi to everybody, after that i stopped a dynamic simulation in MotionSolve i tried to start it again but i found this error: can someone help me please? thank you
  17. Hello, i am a graduate student in ITU Aeronautical Engineering(IDP). i am preparing my thesis. The issue of my Thesis is Flexible multibody analysis of a Landing Gear of a Training Plane. When i analysed the system, i need to compare the results with real test datas. i couldnt achive tests, because of time constraints and very expensive. i think that the closest results can be explicit dynmaic analysis. when i arrenged the explicit dynmaics model and run. i saw there arent any correlation between flex mbd and exp. dynamics anylsis in the same boundry conditions. Can you help me to solve this problem. i asked this question to turkish distrubuter, they get rid of me because of thier job jam. Unfortunately my deadline is very strict, i have to deliver the thesis as soon as possible. My all datas ar in the link below. The model, solved files and the video files. in this problem when the plane landed, the oleo strut make displacement 160mm. During this action observing stresses on the structure, and the 434 steel's compitability for this work. i will be happy for helping me. Thanks for everything. Best Regards. Yours sincerely.
  18. Hello, i am a graduate student in ITU Aeronautical Engineering(IDP). i am preparing my thesis. The issue of my Thesis is Flexible multibody analysis of a Landing Gear of a Training Plane. When i analysed the system, i need to compare the results with real test datas. i couldnt achive tests, because of time constraints and very expensive. i think that the closest results can be explicit dynmaic analysis. when i arrenged the explicit dynmaics model and run. i saw there arent any correlation between flex mbd and exp. dynamics anylsis in the same boundry conditions. Can you help me to solve this problem. i asked this question to turkish distrubuter, they get rid of me because of thier job jam. Unfortunately my deadline is very strict, i have to deliver the thesis as soon as possible. My all datas ar in the link below. The model, solved files and the video files. https://drive.google.com/open?id=1ftCMNjK_aZi_axSFe0Gx-3Jk6Qe33u00 in this problem when the plane landed, the oleo strut make displacement 160mm. During this action observing stresses on the structure, and the 434 steel's compitability for this work. i will be happy for helping me. Thanks for everything. Best Regards. Yours sincerely.
  19. Hello, i am a graduate student in ITU Aeronautical Engineering(IDP). i am preparing my thesis. The issue of my Thesis is Flexible multibody analysis of a Landing Gear of a Training Plane. When i analysed the system, i need to compare the results with real test datas. i couldnt achive tests, because of time constraints and very expensive. i think that the closest results can be explicit dynmaic analysis. when i arrenged the explicit dynmaics model and run. i saw there arent any correlation between flex mbd and exp. dynamics anylsis in the same boundry conditions. Can you help me to solve this problem. i asked this question to turkish distrubuter, they get rid of me because of thier job jam. Unfortunately my deadline is very strict, i have to deliver the thesis as soon as possible. My all datas ar in the link below. The model, solved files and the video files. in this problem when the plane landed, the oleo strut make displacement 160mm. During this action observing stresses on the structure, and the 434 steel's compitability for this work. i will be happy for helping me. Thanks for everything. Best Regards. Yours sincerely.
  20. Hello! I would like to do a full vehicle analysis with the advanced driver (.adl-file). Apparently, I cannot find this option when I'm in Motion View and use the "-> Model -> Assembly Wizzard" command. I tried it with the latest Hyperworks 14 and 2017 version. Does anybody know how to solve this problem? Thanks in advance. Regards, Max
  21. Are available tutorials in order to generate a flexible body model for example of an assembly using component mode synthesiswith frequency content?
  22. How to give rpm to flywheel in motion view and how to give value to rpm?i have created joints, now i want to give 300 rpm to flywheel.
  23. Dear All, Both AcuSolve (CFD) and MotionSolve (MBD) Hyperworks Solvers can be coupled, cosimulation is possible. Certain Applications being real time Aerodynamics simulations, Wind turbines, Fuel tank sloshing, Pressure check valve etc. Click here to view the webinar on AcuSolve (CFD) & Motionsolve (MBD) coupling Attached is a tutorial on the same coupling - Pressure check valve. Regards, Kamlesh CFD_MBD.zip
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