Hello all,
We've got an issue whereby a stainless steel pressure sensor housed in an aluminium or zinc enclosure and submerged in a static tank of tap water starts to drift (i.e. the pressure reading starts to continuously increase or decrease away from its nominal value). Other than a small...
Hi all,
The following mechanical drawing is for a pressure sensor and recommends a 19mm hole with a 20 degree phase for mounting. What does a 20 degree phase mean?
Thanks,
Amr
Hello all,
I'm trying to get hold of some clear plastic pipe of approximately 8" in diameter in order to build a test rig for some pipe inspection robots (straight sections, tees and 90 degree elbows). Unfortunately, the prices I've found online are very expensive. For example, usplastic.com...
Hello all,
I'm using ANSYS workbench 13 to model the fluid flow in a pipe with various obstacles in it in order to determine the forces generated on the obstacles by the fluid. However, I'm not sure how to create the geometry for this simulation. From the CFX tutorials, I can see that the...
Hello all,
I'm getting some inconsistent behaviour with Solidworks' Smart Fastener tool. Examine the following assembly:
The cube in the middle is just a simple cube with several Hole Wizard holes in it. These were created in one step by applying the hole properties to different sketch...
Hello all,
I'm making an animation of an assembly that is composed of several sub-assemblies in SW2009. In one of the sub-assemblies, I am trying to move some of its constituent parts and sub-assemblies so that I can make the animation. I have set the sub-assembly to be flexible and I can move...
Unfortunately, the robot does have a length limitation - its needs to be able to turn 90 degree bends, which restricts the maximum length that the robot can take. One of my initial designs faced this problem: with the legs folded back, the robot was too long to navigate the bends.
Thanks for the replies.
I would say that the actuation does have to be purely linear. I lever arm and a rotary actuator would take up a lot of space I think.
The application is a mobile robot inside a pipe, with the robot pressing its "limbs" against the pipe wall by using linear actuators...
Hello all,
I was wondering what mechanisms/actuators are out there that can generate strains of higher than 1 (i.e. the actuator can extend to at least twice its original size). I can only think of two mechanism for doing so: either a telescopic system, or the use of the scissor mechanism, like...
Hello all,
Thanks for your advice. Unfortunately, as this is an individual project, I'm not working with experts in the individual fields. Sounds like trying to simulate the entire thing is not going to be practical. I'll look into splitting it all up.
--Amr
Hello all,
How do you calculate the torque produced by a turbine? If we consider the turbine shown below:
Assume that this turbine is working underwater, with a fluid speed of 2m/s and that the turbine itself is 10mm thick. In order to calculate the speed, I work out the time taken for the...
Hello all,
I have been looking at the websites of various simulation packages, such as the Solidworks Simulation features, ANSYS, COMSOL and LS-DYNA. Although these packages can simulate many different things, it wasn't clear whether these packages can simulate entire systems. All the examples...
@Mike: Thanks for the suggestion - I am working on several concept ideas and one of them is using a similar principle to what you have suggested. However, I am currently assessing the feasibility of the hydraulic method.
@Ted: Useful link: I will contact the company. Thanks
--Amr
