Horizontal reaction force wrong?

1 次查看（过去 30 天）
Laurens Van Eykeren
回答： Martin 2017-8-7
When checking the block "translational detent" in the SimDriveline library, and trying to perform the calculations myself, I encountered the following problem.
It appears that SimScape calculates the horizontal force acting on the detent as:
Fh = x*k / tan(alpha) + F_preload / tan(alpha)
Where: x is the horizontal displacement, k the spring stiffness (which is mounted vertical), 2*alpha the detent angle (according to the description in the help), and F_preload the preload force on the spring.
However, this would mean that the spring force is directly related to the horizontal displacement, while the spring is mounted vertically. Actually, the vertical displacement of the ball is y = x/tan(alpha). Therefore, shouldn't the correct formula be:
Fh = y*k / tan(alpha) + F_preload / tan(alpha) = x*k / tan(alpha)^2 + F_preload / tan(alpha) ?
Is there anybody who can explain me where I'm wrong?

请先登录，再回答此问题。

回答（1 个）

Martin
Martin 2017-8-7
Your formulation for Fh is correct, and that is what is used in the Translational Detent.

类别

在 Help Center 和 File Exchange 中查找有关 Simscape Driveline 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by