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Update Content - 2022-11-02

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Thomas Dehaeze
2022-11-02 11:34:25 +01:00
parent ef608dfd9d
commit 7ed7d6134f
1 changed files with 8 additions and 2 deletions
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content/zettels/voice_coil_actuators.md
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@@ -90,14 +90,17 @@ Let's fix `m` (payload mass) and `Df` (wanted motion induced by the voice coil).
Then, let's vary `f0` and compute the corresponding `Dg`, `Fmax` and `k`. Then, let's vary `f0` and compute the corresponding `Dg`, `Fmax` and `k`.
```matlab ```matlab
g = 9.8; %% Fixed Parameters
g = 9.8; % [m/s^2]
m = 5; % [kg] m = 5; % [kg]
Df = 5e-3; % [m] Df = 5e-3; % [m]
%% Suspension resonance is varied
f0 = 0.1:0.1:20; % [Hz] f0 = 0.1:0.1:20; % [Hz]
``` ```
```matlab ```matlab
%% Other parameters are computed
k = m * (2*pi*f0).^2; % [N/m] k = m * (2*pi*f0).^2; % [N/m]
Dg = m * g ./ k; % [m] Dg = m * g ./ k; % [m]
Fmax = k * Df; % [N] Fmax = k * Df; % [N]
@@ -114,14 +117,17 @@ Let's fix `m` (payload mass) and `Fmax` (maximum force applied by the Voice coil
Then, let's vary `Df` and compute the corresponding `Dg`, `f0` and `k`. Then, let's vary `Df` and compute the corresponding `Dg`, `f0` and `k`.
```matlab ```matlab
g = 9.8; %% Fixed Parameters
g = 9.8; % [m/s^2]
m = 5; % [kg] m = 5; % [kg]
Fmax = 50; % [N] Fmax = 50; % [N]
%% Wanted stroke is varied
Df = 1e-3:1e-4:10e-3; % [m] Df = 1e-3:1e-4:10e-3; % [m]
``` ```
```matlab ```matlab
%% Other parameters are computed
k = Fmax./Df; % [N/m] k = Fmax./Df; % [N/m]
f0 = sqrt(k/m)/2/pi; % [Hz] f0 = sqrt(k/m)/2/pi; % [Hz]
Dg = m * g ./ k; % [m] Dg = m * g ./ k; % [m]