In engineering design, we often encounter some difficult engineering problems: how to balance the calculation conditions by controlling the total result and total value. Such a statement is not easy to understand. For a simple example: a conical concrete cylindrical pier, the engineering design should reach a weight of 500 tons. Suppose we do not know the height, the taper and the diameter of the top surface of the top surface can be precisely controlled to 500 tons. Heavy, then we can control one or more of the conditions through the 3D, automatically adapt, adjust the range of conditions, to achieve the design goal of 500 tons of weight. Through the 3D CAD software design optimizer, the face of such difficult problems can be solved. The following is an actual engineering problem with a sink as an example to introduce how to achieve 3D design in 3D design software.
As shown in the figure below, for a sink, build a 3D model according to the dimensions in the figure. Pay attention to the geometric relationship such as symmetry and coincidence. The parameters in the figure are as follows:
Figure 1 / 3D model built according to the dimensions in the figure
Now simulate the water injection in the water tank, ask the water level height X (accurate to 2 decimal places), the water volume in the water tank is closest to 400,000 cubic millimeters.
Figure 2 / Simulating water injection in the sink
When encountering such a similar scenario, our direct approach is to first calculate the volume of the entire sink. However, in this project, you can see that the entire sink is not a regular geometry. To get the volume of the sink through forward calculation, the difficulty is quite large.
Here's how to use Zhongwang 3D to solve this problem:
1. First create a geometric model of the sink according to the requirements of the topic. It should be noted here that all sketches must be fully constrained and all geometric parameters can only be unique values. As shown below:
Figure 3 / Creating a sink geometry model with Zhongwang 3D
2. When creating an intermediate cavity, create it by creating a new geometry and copy it. One is used as a trimmed body and one is used as a water model for loading. As shown below:
Figure 4 / Creating an intermediate cavity
3. Dig the cavity by Boolean operation.
4. Create a variable, named X, and take a value of 15. Then create a datum plane with an offset of X from the top surface of the sink. Use this datum plane to trim the other body copied, and get the model shown below.
Figure 5 / Use this datum plane to trim another body copied
5. Use the query quality attribute to query the water volume and save the variable attributes.
Figure 6 / Query quality attributes, query water volume
6. Tools - Design Optimizer Features. Load the X and water volume variables into the design optimizer separately as shown below.
Figure 7 / Zhongwang 3D Design Optimizer Function
Note here that the more precise the step size is, the more you can reach the target value.
7. Constantly click on the operation button in the design optimizer to know that the target value is close to the value required by the design. Now look at the value of the X variable. This is the X value required in the title.
Figure 8 / required X value
8. After exiting the design optimizer, the model and the model for the design purpose are available.
Figure 9/ Finally, the model for the design purpose can be obtained.
Through this example, we can clearly see that 3D CAD design optimizer has a very efficient solution to solve such engineering problems. Users can use this function to solve a lot of design problems. In addition to the sink, there are many products, and complex engineering problems can be solved by using the 3D design optimizer. Want to know more advanced 3D design applications, welcome to download the latest 3D2015 latest compiled practical tutorial.
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