Vibration-Isolated Load Suspension with Actuated Position Control
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Solution Overview
Problem
Existing vibration isolation technologies face challenges in achieving low resonance frequencies, maintaining load leveling and horizontal orientation, and supporting heavy loads, while being susceptible to changes in mass distribution and aging of elastic elements.
Innovation Solution
A vibration isolation device with a base body and multiple elastic elements, each connected to a support element, uses actuators to adjust the position and orientation of the load, combined with inductive position sensors for precise control, and optionally includes active vibration isolation for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If soft elastic elements (rubber cords) are used to achieve low resonance frequencies, then vibration isolation performance is improved, but position control and load leveling capability deteriorate
Solution Approach 1:
The patent implements feedback control by using position sensors to detect the actual position of the load and comparing it with the desired position. The control unit processes this information and adjusts the actuators accordingly to maintain the load at the correct position, thereby resolving the position control issue while maintaining vibration isolation through the soft elastic elements.
Solution Approach 2:
The patent replaces manual or passive mechanical positioning with an automated electromechanical system. Actuators driven by electrical signals provide active position control, substituting the need for manual adjustment and enabling precise load leveling despite the use of soft elastic elements that naturally lack positioning stability.
2Reliability
If active vibration isolation with actuators is implemented, then vibration control is improved, but system complexity increases
Solution Approach 1:
The control unit serves multiple functions: it processes position sensor data, determines position deviations, controls actuators for position leveling, and manages vibration compensation. This multi-functionality reduces the need for separate dedicated components, thereby managing system complexity while achieving both position control and vibration isolation.
Solution Approach 2:
The patent combines position control and vibration isolation functions into a single integrated system. The same actuators and control unit that manage position leveling also provide vibration compensation, merging multiple functions into unified components to reduce overall system complexity.
3Measurement precision
If multiple position sensors are used for precise position determination, then control precision is improved, but device complexity increases
Solution Approach 1:
The position sensors serve dual purposes: they provide precise position data for control algorithms and simultaneously contribute to vibration detection. This multi-functionality justifies the use of multiple sensors while managing system complexity, as the same measurement infrastructure supports both position control and vibration isolation functions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device achieves resonance frequencies below 1 Hz, supports loads up to 1000 kg, maintains horizontal orientation, and compensates for changes in mass distribution and aging, reducing vibrations and oscillations.
Implementation Method 1
the device comprises a base body for receiving the load, wherein the base body has a plurality of fastening regions for fastening elastic elements, wherein the elastic elements each have a first end region and a second end region and are fastened to the base body by means of the first end region
Implementation Method 2
at least one, preferably inductive, position sensor is provided in order to determine the position of the base body and/or the load by processing measurement signals of the at least one position sensor
Data Source
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AI summary
The invention relates to a device for suspending a load (10) on at least one support element (1) in a vibration-insulated manner, said device comprising a main part (2) for receiving the load (10). The main part (2) has multiple securing regions (3a, 3b) for securing elastic elements (4a, 4b, 4c, 4d, 4e). Each of the elastic elements (4a, 4b, 4c, 4d, 4e) has a first end region (6) and a second end region (7), and the first end regions (6) of the elastic elements are secured to the main part (2). The second end region (7) is provided for connecting to the at least one support element (1). According to the invention, a regulating and control unit and at least one actuator (8) are provided in order to regulate a preferably specifiable position of the main part (2) and/or the load (10) in an operational state of the device, and the at least one actuator (8) is operatively connected to the second end region (7) of at least one elastic element (4e) in order to be able to adjust the vertical position (9) of the second end region (7) of the at least one elastic element (4e).