Work Machine Boom Shaking Reduction via Axial Feedback Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing work machines face challenges in effectively reducing shaking of suspended loads when the boom is stopped, which can lead to instability and potential risks such as collision with obstacles or entry into prohibited areas.
Innovation Solution
A work machine equipped with a speed detection unit that identifies shaking speeds in specific axial directions, enabling drive control to move the boom in those directions to counteract the shaking, thereby stabilizing the suspended load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the boom is stopped during suspended load transport, then energy consumption is reduced and positioning is achieved, but shaking of the suspended load increases causing instability and collision risks
Solution Approach 1:
The control unit continuously detects the shaking speed of the suspended load and uses this feedback information to automatically adjust the boom's axial movement, creating a closed-loop control system that actively counteracts shaking
Solution Approach 2:
The control unit performs oscillatory axial movements of the boom at specific timings synchronized with the shaking period of the suspended load, creating periodic counter-actions that gradually reduce the shaking amplitude
2Reliability
If the boom is moved to counteract shaking, then stability of suspended load is improved, but control complexity increases
Solution Approach 1:
The control unit autonomously detects shaking characteristics and determines the appropriate counter-actions without requiring external intervention or complex operator judgment, making the system self-regulating
Solution Approach 2:
The control unit adjusts specific parameters such as axial movement distance, movement timing, and oscillation frequency based on detected shaking characteristics, simplifying the control strategy by focusing on key parameters rather than complex multi-dimensional adjustments
Data Source
AI summary
A work machine includes a speed detection unit that detects a shaking speed in a predetermined axial direction of a suspended object suspended from a first member. Shaking of the suspended object is reduced by performing drive control to move the first member in the axial direction, based on a detection result of the speed detection unit.