When it comes to selecting an anti vibration solution for heavy machinery, there are a number of factors to consider. The total weight of the machinery must be taken into account, as this will determine the size and number of supports needed to reduce vibrations. It is important to note that the weight may not be evenly distributed. Flexibility is preferable to stiffness, but too much flexibility can create new problems.
Standard coil springs are a common example of this; when a force is applied, the spring compresses at a certain distance, known as spring speed. The size and shape of the machinery must be taken into account when selecting an anti vibration solution, as this will determine the type of attachment and the space available for the isolator. The center of gravity is also important, as different load capacities may be needed depending on the weight distribution. Negative stiffness mechanisms (NSM) provide a passive approach to achieving low vibration environments. These devices use pressure or eccentric locks to reduce stiffness in elastic suspensions and create compact systems with low natural frequencies. Electromechanical self-adjusting mechanisms can also be used to compensate for varying weight loads and provide automatic leveling in multiple insulation systems. All-metal systems are suitable for high vacuum levels and other harsh environments, such as high temperatures.
Thermosetting polymers are sometimes used to dampen vibrations, but they do not offer design freedom and cannot be formed by injection molding. A double elastic suspension may be used in this case, with vibration dampers mounted in a common frame. When selecting an anti vibration solution, it is essential to consider the weight, size, and center of gravity of the machine or equipment. The vibration isolator must also be designed for long-term durability and comfortable integration into its environment. Passive vibration isolation is a broad topic, with many types of isolators used for various applications. Vibration isolation is the process of isolating an object from the source of vibrations.
This can be achieved using a branch pipe with elastic walls that reflect and absorb oscillatory energy from the working piece of machinery or electrical equipment. Passive isolation works in both directions, preventing vibration energy from being transferred to or from the support.