The Androgynous Peripheral Assembly System (APAS) is designed to achieve the capture, dynamic attenuation, alignment, and hard docking of two spacecrafts. While the spacecrafts are structurally attached, the docking mechanisms provide an 800mm inner tunnel for transferring crew members and equipment between the spacecrafts. 

Specifications 

Axial contact force：    ≤20kN                    

Mass：          327kg

Initial Contact Conditions： 

Lateral misalignment ：       ≤0.16m 

Lateral rate ：                      ≤0.10m/s 

Axial closing rate ：           0.08m/s~0.18m/s 

Pitch/Yaw misalignment：    |Δθ|≤3° |Δψ|≤3° 

Roll misalignment：              |Δφ|≤5° 

Pitch/Yaw rate ：   |Δωθ|≤0.6º/s    |ΔωΨ|≤0.6º/s 

Roll rate：              |Δωφ|≤0.6º/s

Power consumption ：≤62w (av.) 

Inner tunnel diameter：  φ800mm 

envelope length ：             700mm  

outer envelope diameter ： φ1880mm

Environmental Adaptability 

Operating temperature: -30℃～+50℃

Vacuum degree:≤1.3×10-3Pa

Application Field：Shenzhou spacecraft   cargo spacecraft   space station 

Delivery Period：12 months 

APAS Docking Mechanism