Environmental Testing MIL STD167-1A : 2005

Ensure your naval equipment survives the harsh realities of open-sea operations. MIL-STD-167-1A simulates the persistent, low-frequency vibrations induced by ship propulsion systems, guaranteeing that critical hardware remains operational during combat and transit missions.

• Risk Mitigation: Prevents structural fatigue, mechanical loosening, and electrical failures.
• Mission Readiness: Verifies functionality under strict Type I (Environmental) and Type II (Internally Excited) vibration conditions.
• Naval Compliance: Mandatory assurance for all equipment installed on U.S. Navy surface ships.

MIL-STD-167-1A : 2005 – Department of Defense Standard Practice: Mechanical Vibrations of Shipboard Equipment. (Type I – Environmental and Type II – Internally Excited).

This standard is essential for any hardware intended for installation on naval vessels, including:

• Naval Electronics: Control consoles, server racks, radar displays, and communication arrays.
• Machinery: Pumps, compressors, and ventilation fans.
• Power Systems: UPS units, transformers, and switchgear cabinets.
• Auxiliary Hardware: Lighting fixtures and ruggedized mounting systems.

Our testing protocol rigorously follows the Type I (Environmental Vibration) procedures mandated by the standard:

1. Exploratory Vibration (4Hz – 33Hz): A diagnostic sweep to identify dangerous resonant frequencies within the equipment.
2. Variable Frequency Test: Verifies the equipment can operate without malfunction across the full frequency spectrum.
3. Endurance Test: A high-stress dwell test (typically 2 hours) at the identified resonant frequencies to prove long-term durability.

All testing is conducted in ISO/IEC 17025 Accredited facilities. Reports are generated by qualified engineers and are fully accepted by Defense Contract Management Agency (DCMA) and naval procurement officers.

• Standard Turnaround: 5 to 7 business days from the receipt of the sample and fixture.
• Report Delivery: Final certified reports are issued within 48 hours of test completion.
• Expedited slots are available for urgent defense contracts.

• 1 x Functional Unit (EUT): The device must be fully operational to monitor performance during vibration.
• Mounting Fixtures: You must provide the exact brackets or shock mounts that will be used on the ship to ensure realistic test results.

Pricing is custom-quoted based on three factors:

1. Weight & Dimensions: Heavier units require larger shaker tables.
2. Fixture Complexity: Whether we fabricate the mounting plate or you supply it.
3. Test Duration: Number of axes (Vertical, Transverse, Longitudinal) required.

Contact our engineering team for a rapid quote.

To initiate testing, the following is required:

• General Assembly (GA) drawings showing dimensions and center of gravity.
• Mounting interface details.
• Operational manual (to define "pass/fail" criteria for the equipment).