SHOCK AND SHOCK TECH HOMEAPPLICATIONS ENGINEERINGENGINEERING TOOLSFIND PRODUCT BY TYPEFIND PRODUCT BY APPLICATION
VIBRATION

Solutions for Shock, Vibration & Noise Control

 NOMOGRAPH

The SHOCK TECH Shock and Vibration Nomograph tool can be used to quickly determine values of Natural Frequency (Hz), Half-period (sec), Displacement (in), Acceleration (G), Velocity (in/sec) and Drop Height (in) when any two or more of the factors are known and used as a baseline.

· The Nomograph tool is limited to a single degree of freedom (SDoF) of any kinematic relationship for a mass in steady state sinusoidal motion.

· Free fall drop relationships for any of the values are limited to that of an un-damped SDoF system.

These web site examples are limited to a SDoF Sinusoidal Vibration Input and a Free Fall Impact.  If they are not sufficient for your application, contact a SHOCK TECH Applications Engineer to help you with your solution for Velocity Step and other sinusoidal vibration or shock input problems.  To download a clean 'A' size (8.5in x 11in) PDF of the nomograph, click on any of the nomographs below to print or save it from the new browser window for your use
The nomograph tool is for use as a general guide only for determining what mount performance parameters might be needed for any given application.  It is not a guarantee of exact requirements or performance of any dynamic suspension system.  Shock Tech always recommends testing to validate any mount selection's performance for all applications.
Sinusoidal Vibration Example: Open Shock Tech Nomograph in new window Open Shock Tech Nomograph in new window
System Fn = 30Hz
Maximum Acceleration = 10G
Problem: Determine Maximum Displacement & Velocity.
Step 1: Locate Point where 10G line intersects the 30Hz line.
Step 2: Read the Maximum Velocity from the left; = 20.5 ips
Step 3: Read the Maximum Displacement from the Displacement values (rotated 45° clockwise/to the right from vertical); = .11in
Free Fall Impact Example: Open Shock Tech Nomograph in new window Open Shock Tech Nomograph in new window
System Fn = 20Hz
Drop Height = 30in
Problem: Determine Maximum Acceleration & Displacement
Step 1: Locate Point where 30in Drop Height line intersects the 20Hz line.
Step 2: Read the Maximum Acceleration from the Acceleration values (rotated 45° anti-clockwise/to the left from vertical); = 50G's
Step 3: Read the Maximum Displacement from the Displacement values (rotated 45° clockwise/to the right from vertical); =   1.2in
CONTENTS COPYRIGHT SHOCK TECH INC. 2011