Adds function to determine RPM for a given SPM

2017-04-19 20:20:48 -05:00
parent fe4e8bf56d
commit 3e6b1e30cd
2 changed files with 3509 additions and 3675 deletions
--- a/TheHenryPump.ACD
+++ b/TheHenryPump.ACD
--- a/determineRPMforSPM.py
+++ b/determineRPMforSPM.py
@@ -0,0 +1,22 @@
+
+
+thread_pitch = 0.5904
+stroke_length = 60.0
+
+motor_nameplate_hertz = 120.0
+motor_nameplate_rpm = 1200.0
+
+def find_rpm_for_spm(spm_target):
+    revolutions_per_fullstroke = 2.0 * stroke_length / thread_pitch
+    seconds_per_stroke = 60.0 / spm_target
+    revolutions_per_second = revolutions_per_fullstroke / seconds_per_stroke
+    return revolutions_per_second * 60.0
+
+def find_hz_for_rpm(rpm_target):
+    return rpm_target * (motor_nameplate_hertz / motor_nameplate_rpm)
+
+if __name__ == '__main__':
+    for x in [1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0]:
+        rpm = round(find_rpm_for_spm(x), 3)
+        hz = round(find_hz_for_rpm(rpm), 3)
+        print(x, rpm, hz)