Table 1 Discrete element simulation parameters of pot body.

From: Study on the interaction characteristics between pot seedling and planter based on hanging cup transplanter

Parameters

Values

Particle contact radius / mm

1.6

Normal stiffness per unit area / (N / m3)

7.6 × 106

Tangential stiffness per unit area / (N / m3)

6.775 × 106

Critical normal stress / Pa

2600

Critical tangential stress / Pa

2600

Bonding radius / mm

1.813

Pot body density / (kg / m3)

395

Pot body Poisson’s ratio

0.43

Pot body elasticity modulus / Pa

1.25 × 106

Steel density / (kg / m3)

7850

Steel Poisson’s ratio

0.35

Steel elasticity modulus / Pa

7.0 × 1010

Pot body-pot body collision recovery coefficient

0.20

Pot body-pot body static friction coefficient

0.65

Pot body-pot body dynamic friction coefficient

0.43

Pot body-steel collision recovery coefficient

0.21

Pot body-steel static friction coefficient

0.44

Pot body-steel dynamic friction coefficient

0.13

  1. The parameters for the potted seedlings were determined under specific conditions, including a substrate moisture content of approximately 60%, a seedling age of 30 days, and a pot volume of 105 cells25.
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