Flexure Joints for Large Range of Motion

Показать описание

Research by the PE lab at the University of Twente:

Below are some references:
M. Naves, D.M. Brouwer, R.G.K.M. Aarts, Building block based spatial topology synthesis method for large stroke flexure hinges, ASME robotics and mechanisms, accepted manuscript, doi: 10.1115/1.4036223.

Naves M, Aarts RGKM, Brouwer DM (2017) “Large stroke three degree-of-freedom spherical flexure joint”, Euspen’s 17th international conference and exhibition, Hannover, Germany.

M. Nijenhuis, J.P Meijaard, J.L. Herder, S. Awtar, D.M. Brouwer, An analytical formulation for the lateral support stiffness of a spatial flexure strip, ASME mechanical design, in-press.

D.H. Wiersma, S.E. Boer, R.G.K.M. Aarts, D.M. Brouwer, Design and Performance Optimization of Large Stroke Spatial Flexures, Journal of Computational and Nonlinear Dynamics (ISSN 1555-1415), 9(1), 011016, pp. 10 (2014). DOI: 10.1115/1.4025669

D.M. Brouwer, K.G.P. Folkersma, S.E. Boer, and R.G.K.M. Aarts, Exact Constraint Design of a Two-Degree of Freedom Flexure-Based Mechanism, Journal of Mechanisms and Robotics (ISSN 1942-4302) 5(4), 041011, pp. 10 (2013). DOI: 10.1115/1.4025175

Рекомендации по теме

Комментарии

As an engineer, this is very inspiring. I hope I can imitate some of these ideas in my otherwise usual designs. Can't wait what the future holds!

tkzsfen

I can't wait to see what the future holds when you guys decide to finally share the software

WallyMahar

I was doing some thinking about flexure joints when I happened across a wall hanging device for large flat screen TVs. It is designed to swing out from the wall, and tilt, while remaining stiff in the "Z" axis. They sell millions of them. At first glance it looked like a perfect application for a flexure system. But polymer materials have low yield strengths. The ceaseless pull of gravity on the swing arm would rapidly deform flexible plastics. Although the joint itself would be theoretically "stiff" in Z, the entire apparatus would quickly sag down the wall unless the flexures were made from something like spring steel, which would defeat the cost savings from using monolithic polymer construction.

jdstar

Optimized computations, good example!

astasna

optimally we will optimize this optimization.

jjjcccbbb

Very cool. Results from design optimization are always fascinating, initially helping to point out an incomplete understanding of the design space, before suggesting unique designs.

kentvandervelden

An incredible video. Thank you for making and sharing!

sennabullet

I was waiting him to drop the retro-encabulator in his presentation.

nicolasduguay

I'm currently working on a project involving compliant mechanisms myself, would anyone be able to say what program is used at 3:00 for the shape optimisation stage?

bensweet

where can I find more info about 5:05?

eduardlopatin

Thank you for the video. I was recently looking into flextures for some small 3D printed parts for hobby purposes. It seems, that almost all information about 1) explained examples and 2) pro/con of solving a particular scenario are hidden behind paywalls charging hundreds of € for research papers. And you don't even know, what's in those papers and if you can apply some of the information to your own scenarios. If you have some pointers, where accessible information about simple flextures or compliant mechanisms can be found, it would be very helpful. Thanks anyhow for sharing your info!

michael-rommel