GrabCAD 模型信息
Gyroscope with precession · 模型 277120
Original project made with Autodesk Inventor 2014 as a Dynamic simulation. The actions are the imposed rotation of the fly-wheel (10000 rot/min) and the gravitation force. You have to see also this very short „static” animation https://youtu.be/8Mib2fryvU4. You note there that two weights are attached, so the system is not balanced. This is a dynamic simulation of a gyroscope that is initially in equilibrium on support. We can identify a fixed part represented by the support, and a mobile part represented by the rest - the rod which sustains the gyroscope at one end and a weight at the other end. The joint between the fixed and mobile parts is a spherical joint. This gives great freedom to the mobile part - rotations around the three axes, isn't it? The equilibrium is controlled by adjusting the position of the weight using a set screw. You have to know that gaining the exact equilibrium position is very precise work (if you do not want to make calculus). The exact value of the distance is 28.836 mm from the end of the rod and the nearest end of the weight. A value of 28.835 mm or 28.837 mm makes the rod have an inclination. Here we consider two different assemblies: one in equilibrium (with one weight), and another one with two weights - a big difference. If you start with the second assembly, then you can obtain the first one by simply deleting the second weight. If you use Autodesk Inventor, I offer you both assemblies with all .iam and .ipt files, to have them separately for your tests. I suggest you the following four tests with their times: 1/ Equilibrium ( 5 seconds): the gyroscope is not rotating and it stays in perfect equilibrium (using the exact value with three decimals from above) - the animation is not necessary since the system is static, as in a picture 2/ Equilibrium (20 seconds): the gyroscope is rotated at about 10000 rot/min and the mobile part will not move at all for 20 seconds - the animation is not necessary since the system is static, as in a picture, but only the gyroscope is rotating 3/ Imbalance ( 2 seconds): the gyroscope is not rotating and the rod gains an inclination almost instantly - see the animation here: https://youtu.be/8Mib2fryvU4 4/ Imbalance (25 seconds): the gyroscope is rotated at about 10000 rot/min and the mobile part starts from a big instability, but it is attenuated at the end and it remains only the precession movement The rotational speed of the gyroscope is 5893... Enjoy!
- 格式
- STEP / IGES、Autodesk Inventor、Rendering
- 分类
- Educational、Hobby、Machine design
- 标签
- autodesk_inventor、dynamic_simulation、ipt、iam
- 数据更新
- 2026-11-06T16:31:51Z