By developing two lift table designs in parallel, I would like to be able to implement the anchoring position of my hydraulic cylinder automatically, this is the first step to justify the choice of kinematics. At this stage, the parallelogram is possible in relation to the double scissors. Can we set up the anchor points of the cylinder and launch a design study, I have minimal experience with this module, only used to optimize centers of mass by allowing scalable models to be generated. Thank you for all the advice and the approach to consider. The mechanical part on the forces in the connections Lift Table N°1 Double Scissors 730V.SLDPRT (56.2 KB) Lift table N°1 Double scissors. SLDPRT (57.2 KB) Prototype Lift Table N°2 Parallelogram Cylinder 500.SLDPRT (93.8 KB) Prototype Lift Table N°2 parallelogram. SLDPRT (52.8 KB) not necessary at this point.
You are very vague about the goals you set for your design study. This is the first thing to define in a study of this type, as well as the parameters that you consider to be the most relevant as input. Then, the design study proposed by SolidWorks allows you to study the response of the " objective " parameters of your system, according to the variation of the input parameters.
Having only his diagram, I carried out a simple kinematic/static study on one of your models, setting as objectives the stroke of the cylinder (in fact its length), and the force it will have to exert under a load of 500 daN. The input parameters are the height of the table, varying from 600 to 1200 mm, and the position of the anchor point on the top bar of the parallelogram (varying from 150 to 450 mm).
The results can be analysed graphically: curves of the force of the cylinder and its length as a function of the scenario number. Where it is not surprising to see that the greater the stroke of the cylinder, the lower the effort it must exert. All that remains is to choose the type of cylinder (electric, hydraulic, etc.) and the right reference.
In fact, my goal in the preliminary phase is to be able to classify the efficiency of one kinematic structure compared to another by including here a type of actuator, the cylinder and its technology afterwards by looking at the manufacturers' guides. My current difficulty is to retrieve the most favorable criteria from the 3D model:
use a dimension socket on the 3D model I start using.
Define terminals (the tool is more difficult to configure) Then deduce a design proposal, I'm not friends with the design study but I'll work on it with the elements you bring. Thank you for the process and I will update the post on the forum.
I'm going to build on your work by using and setting sensors, thanks, I'm not using this option. One last question, can the sensors be used with static resistance simulation data, because I have been for a week on the comparative study of a bolted assembly versus a welded assembly by changing my kinematic diagram locally, to have a transport in reduced cost and in delivered format.
If so, in this case I will submit a complementary approach on the use of a beam, this one parameterized to obtain according to the forces its minimum thickness adapted to have an eco-design criterion, minimizing the overall mass of the object in the preliminary design phase. (I take into account the safety factor in the preamble). A thickness sensor is possible and I give it minimum terminals, maximum in relation to the constraints generated. This is my current progress on the tool, and I am very happy with the possibilities offered in the research phase and with your help. Kind regards.
