MIL-STD 810 is a Department of Defense Test Method Standard for environmental engineering considerations and laboratory tests. It is the most popular Military specification used to conduct environmental testing of military products. It exists so as to ensure that products used for defense-related purposes meet very specific requirements with regard to ruggedness, durability, and performance. Given the fact that these products may be exposed to harsh or even extreme conditions, their reliability under stress is essential
This is part two of a series of blog posts concerning the MIL-STD 810 Shock Section, Method 516. This blog was written with reference to MIL-STD-810G w/Change 1 dated 15 April 2014. DES has the experience and expertise to run your MIL-STD-810 test. For more information, please check out our DES shock testing services page and our other MIL-STD-810 shock testing blog articles:
Shock testing according to Procedure I of MIL-STD 810, Method 516 is intended to test products while they are operating to see if any functional problems occur and to determine if they survive without damage. The applied shocks usually represent those that may be encountered during operational service. This article will focus on the shock test condition when measured field data is not available and the testing will use classical shock impulses. The terminal peak sawtooth is the default classical shock pulse to be used for this condition. Figure 516.7-10 from MIL-STD-810 shows its shape and tolerance limits. Table 516.7-IV contains the terminal peak sawtooth default test parameters for Procedure I -Functional Test. In limited cases a half sine shock impulse is specified. Its shape and tolerance limits are shown in Figure 516.7-12.
This is part nine article in a series of product reliability testing blog posts concerning the MIL-STD 810 Vibration Section. This blog was written with reference to MIL-STD-810G w/Change 1 dated 15 April 2014. DES has the experience and expertise to help you determine what profiles are appropriate for your product and to run your MIL-STD-810 vibration test. For more information, please check out our Vibration Testing Services page and our other MIL-STD-810 vibration testing blog articles.
This is part eight of a series of blog posts concerning the MIL-STD 810 Vibration Section. This blog was written with reference to MIL-STD-810G w/Change 1 dated 15 April 2014. DES has the experience and expertise to help you determine what profiles are appropriate for your product and to run your MIL-STD-810 vibration test. For more information, please check out our Vibration Testing services page and our other MIL-STD-810 vibration testing blog articles:
This is part seven of a series of blog posts concerning the MIL-STD 810 Vibration Section. This blog was written with reference to MIL-STD-810G w/Change 1 dated 15 April 2014. DES has the experience and expertise to help you determine what profiles are appropriate for your product and to run your MIL-STD-810 vibration test. For more information, please check out our Vibration Testing services page and our other MIL-STD-810 vibration testing blog articles:
This is part five of a series of blog posts concerning the MIL-STD 810 Vibration Section. This blog was written with reference to MIL-STD-810G w/Change 1 dated 15 April 2014. DES has the experience and expertise to help you determine what profiles are appropriate for your product and to run your MIL-STD-810 vibration test. For more information, please check out our Vibration Testing services page and our other MIL-STD-810 vibration testing blog articles:
This is part four of a series of blog posts concerning the MIL-STD 810 Vibration Section. This blog was written with reference to MIL-STD-810G w/Change 1 dated 15 April 2014. DES has the experience and expertise to help you determine what profiles are appropriate for your product and to run your MIL-STD-810 vibration test. For more information, please check out our Vibration Testing services page and our other MIL-STD-810 vibration testing blog articles:
This is part three of a series of blog posts concerning the MIL-STD 810 Vibration Section. This blog was written with reference to MIL-STD-810G w/Change 1 dated 15 April 2014. DES has the experience and expertise to help you determine what profiles are appropriate for your product and to run your MIL-STD-810 vibration test. For more information, please check out our Vibration Testing servicespage and our other MIL-STD-810 vibration testing blog articles:
This is part of a series of blog posts concerning the MIL-STD 810 Vibration Section. This blog was written with reference to MIL-STD-810G w/Change 1 dated 15 April 2014. DES has the experience and expertise to help you determine what profiles are appropriate for your product and to run your MIL-STD-810 vibration test. For more information, please check out our Vibration Testing services page and the other blog posts in this series,
Procedure I (General Vibration), Category 9 of Method 514.7 Vibration testing details the vibration profile of cargo carried in helicopters. This vibration profile is unique because it superimposes strong narrowband peaks of sinusoidal vibration caused by rotating components such as the main or tail rotors, over low-level wideband random vibration caused by aerodynamic flow. This vibration profile is generally referred to as Sine on Random Vibration Testing. Figure 1 outlines the typical vibration profile and the variables which are determined based upon the type of helicopter as well as the location on the helicopter where your product will be used or stored. Tables 1 and 2 define the equations and properties used to determine the variables used in the Figure 1 plot.
This is part two of a series of blog posts concerning the MIL-STD 810 Vibration Section. This blog was written with reference to MIL-STD-810G w/Change 1 dated 15 April 2014. DES has the experience and expertise to help you determine what profiles are appropriate for your product and to run your MIL-STD-810 vibration test. For more information, please check out Part 1 – MIL-STD-810 Vibration Testing Overview blog and our Vibration Testing services page.
Category 4 of Method 514.7 Vibration testing details the transportation random vibration environmental conditions from cargo interaction with vehicle suspension and structures with road and surface discontinuities. “This environment may be divided into two phases, truck transportation over US highways, and mission/field transportation. Mission/field transportation is further broken down into two-wheeled trailer and wheeled vehicles categories.”
Truck Transportation over US Highways Vibration Testing
This vibration test method is used when products or equipment will be transported by large trucks tractor-trailers commonly seen on US highways. The truck transportation over US highways random vibration profile is designed to simulate 1609 km (1000 miles) on interstate highways. The random vibration profile along each axis can be seen in the plot below in Figure 1. The length of this profile is 60 minutes per axis for each 1000 miles of transportation. For example to simulate 2000 highway miles, the vibration test duration would be 2 hours per axis x 3 axes = 6 hours total.
Figure 1. Figure 514.7C-2 from MIL-STD-810G w/ Change 1
