STEM与日常科技·英语30篇（5）

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外骨骼如何在行走与攀爬中回收能量？

Modern wearable exoskeletons capture kinetic energy when users bend their knees or lower their hips.
Spring-loaded actuators and regenerative braking systems convert motion into stored electrical or mechanical energy.
During stair descent, motors act as generators, slowing movement while charging onboard batteries efficiently.
This recovered power helps extend battery life by up to thirty percent during eight-hour work shifts.
Engineers tune damping ratios so energy return feels natural, not robotic or delayed.
Unlike passive braces, smart exoskeletons adjust recycling rates based on real-time gait analysis and load sensors.
Field tests show warehouse workers lift heavier boxes with less fatigue thanks to recycled assistive torque.
Energy recovery works best on repetitive motions, making it ideal for logistics, construction, and rehabilitation.
Thermal losses still occur, but new piezoelectric composites reduce heat waste during conversion.
Ultimately, these systems turn human motion itself into a sustainable power source for assistance.