Working Condition Analysis
Three shipboard cabinets installed side by side have significant differences in self-weight (423 kg, 178 kg, and 178 kg respectively). During ship operation, these cabinets are subjected to complex vibration conditions caused by the combined effects of hull motion and engine-induced vibration.
If conventional vibration isolators are selected based only on the individual cabinet weights, the following serious issues may occur:
1. Risk of Collision Between Cabinets
Due to the large difference in cabinet weights, each cabinet will have a different natural frequency after installing vibration isolators. Under ship vibration excitation, the cabinets may respond asynchronously with different vibration amplitudes and phases, resulting in a high risk of mutual collision.
2. Increased Vibration Amplitude
While vibration isolators effectively reduce vibration transmission, they also introduce a flexible connection between the equipment and the ship structure. This flexibility may increase the displacement amplitude under certain operating conditions, further increasing the risk of collision and potentially compromising the safety of internal components.
Therefore, directly installing vibration isolators on each cabinet separately is not a suitable solution.
Vibration Isolation Solution
1. Integrated Structural Design
A high-strength steel support frame is installed beneath the three cabinets. Through rigid connections, the cabinets and the steel frame are combined into a single integrated structure, ensuring overall stability.
2. System-Level Parameter Matching
The total weight and load distribution of the integrated structure are recalculated. Based on the overall dynamic characteristics, the optimal vibration isolator quantity, installation positions, and load capacity are determined.
3. Precise Selection and Layout Optimization
Recommended Models
Installation Layout
The isolators are arranged according to the calculated mounting positions to ensure uniform load distribution, prevent local overloading, and achieve optimal vibration isolation performance.
Product Features
Designed for Mobile Applications:
Wire rope isolators are specifically developed for vehicles, ships, and other mobile platforms, providing excellent shock absorption and vibration attenuation performance.
Excellent Corrosion Resistance:
The ALJ-816 series and ALJ-817 series are manufactured with full 304 stainless steel construction, offering superior corrosion resistance and salt spray resistance for harsh marine environments with high humidity and salt exposure.
High Damping Performance:
Each wire rope element is manufactured from high-strength 7×19 stranded wire rope. During vibration, relative movement and friction between individual steel wires generate inherent damping, effectively dissipating vibration energy and absorbing shock loads. This protects sensitive equipment inside the cabinets from vibration and impact damage.
Product Specifications
ALJ-81655 Wire Rope Isolator
Length (L) | Mounting Hole Spacing (A) | Mounting Holes (M) | Height (H) | Width (W) | Maximum Vertical Static Load（N） |
146mm | 131mm | M8×1.25 | 55mm | 60mm | 1740 |
ALJ-81771 Wire Rope Isolator
Length (L) | Mounting Hole Spacing (A) | Mounting Hole Spacing（B） | Mounting Holes-8pcs （M） | Height (H) | Width (W) | Maximum Vertical Static Load（N） |
216mm | 166mm | 71mm | M8×1.25 | 71mm | 84mm | 2300 |
For more information, please visit the official websites:
· http://www.anlijing.cn
· http://www.anlijing.com
Anlijing Vibration Reduction Technology Co., Ltd.
Specializing in vibration and noise control solutions for mechanical and electrical equipment.
Driven by engineering data and precise selection, we provide integrated services including vibration testing, system design, isolator selection, and customized vibration isolation solutions.
