Mechanical Product Digital Design and Manufacturing

1  Competition Overview

1.1  Name

【BRICS2025-ST-147】Mechanical Product Digital Design and Manufacturing.

1.2  Purpose

Mechanical manufacturing, as the core pillar of the industrial system, is a key indicator of a country’s industrialization level. In recent years, the global mechanical manufacturing industry has undergone profound changes: on one hand, traditional production models face challenges such as rising labor costs, overcapacity, and tightening resource and environmental constraints, forcing the industry to accelerate transformation; on the other hand, the deep integration of a new generation of information technologies—represented by 5G, the Internet of Things, and artificial intelligence—with manufacturing is driving a shift in production methods from “scale-driven” to “intelligence-driven,” and extending from “single manufacturing” to “full-life-cycle services.” The Digital Design of Mechanical Products Skills Competition will focus on advanced technologies, comprehensive capabilities, and innovative thinking to build a closed-loop growth platform for participants integrating “learning, practice, competition, and application.”

1.3  Participants

1.3.1  Age Requirement

Participants must be over 16 years old and under 22 years old, with no gender restrictions.

1.3.2  Team Composition

Each team consists of 5 members: 2 competitors, 1 translator, 1 coach, and 1 team leader.

2  Competition Content

2.1　Competition Tasks

The competition consists of 5 tasks, detailed as follows:

Task 1: Engineering Drawing Design (0.5 hours)
Given 2D assembly engineering drawing files, competitors will disassemble and draw 2D engineering drawings of specified parts. Using provided 3D models of parts, they will generate 2D engineering drawings through appropriate methods. This module assesses proficiency in using CAD software for disassembling engineering drawings and converting 3D models to 2D.

Task 2: 3D Design (1 hour)
Given partial 3D files of a mechanism, competitors will supplement and optimize missing or inappropriate parts, perform virtual assembly to form a digital prototype, and generate virtual simulation animations. This module evaluates skills in 3D modeling, assembly, and motion simulation animation using 3D software.

Task 3: Structural CAE Analysis (0.5 hours)
Based on given working conditions and other parameters, competitors will conduct CAE finite element mechanical analysis on specified parts and generate analysis reports. This module tests abilities in finite element mechanical analysis of parts.

Task 4: Machining Process (0.5 hours)
According to given machining conditions, competitors will compile machining process cards and operation cards for specified parts. This module assesses the application of machining process knowledge.

Task 5: Report Presentation (15 minutes)
Competitors will defend and present the analysis reports and processes completed in Tasks 3 and 4.

2.2　Score Weight Distribution

The score weight of each task module is shown in Table 1.

Table 1　Score Weight Distribution of Competition Tasks

2.3　Competition Duration

The duration of each task module is shown in Table 2.

Table 2　Duration of Competition Tasks

3　Evaluation Criteria

3.1　Evaluation Principles

3.1.1　Comprehensive Principle

The expert and referee teams will evaluate results based on the principles of “fairness, impartiality, transparency, scientificity, and innovation.” Assessments will cover multiple aspects, including design, equipment operation, and work ethics.

3.1.2　Module Independence Principle

To ensure fairness and accuracy, each module must be evaluated independently. Performance in one module must not affect the conditions, execution, or evaluation of subsequent modules. This principle ensures:

1. a) Independent assessment of specific skill areas;
2. b) Clear diagnosis of participants’ abilities in each module;
3. c) Fair competition regardless of early task outcomes;
4. d) Consistency in evaluation and scoring.

Thus, each module must:

1. a) Provide a neutral and clean working environment;
2. b) Supply independent tools, materials, and data;
3. c) Include independent instructions and objectives;
4. d) Allow participants to start without relying on outputs from previous tasks.

Evaluations must assess task-specific abilities within each module based on predefined technical standards.

3.2　Distribution of Evaluation and Measurement Scores

The distribution of subjective (evaluation) and objective (measurement) scores is shown in Table 3:

Table 3  Distribution of Evaluation and Measurement Scores

3.3　Evaluation Scores

Scoring Method: A panel of 4 referees will be formed, including one rotating referee (who scores other teams but not their own). Three referees independently assign weighted scores, and the average weighted score is calculated as the final result. Referees’ score differences must be ≤1 point; if exceeding 1 point, they must justify their scores, and a consensus will be reached under the chief referee’s supervision.

Table 4  Weighted Evaluation Score Criteria

3.4　Measurement Scores

Measurement scoring method: Set up a number of scoring groups according to the task, each group is composed of 4 referees. All referees in each discuss together and finally give only one score after reaching an agreement on the actual score of the player in this item. For example, see Table 5 for measurement scoring

Table 5  Examples of Measurement Scoring

3.5　Evaluation Process

3.5.1　Result Scoring

Submitted works will be scored according to predefined technical standards.

3.5.2　Penalty Deductions

Participants will face deductions for the following violations:

1. a) Accidents due to improper operation: 10–15 points deducted; severe cases result in disqualification;
2. b) Equipment damage or environmental pollution due to rule violations: 5–10 points deducted; severe cases result in disqualification;
3. c) Disturbing order or interfering with referees: 5–10 points deducted; severe cases result in disqualification;
4. d) Non-compliance with regulations (e.g., messy tool placement, disorganized workflow, improper attire, incomplete documentation): 5–10 points deducted based on severity.

3.5.3　Sampling Review

To ensure accuracy, the supervision team will review ≥30% of scores. Discrepancies will be reported to the expert team leader in writing for correction and confirmation.

3.6　Score Tabulation

Each scoring group rates their respective modules separately, combining process scoring with post-event scoring, and the workpieces completed by the contestants on the day are scored the same day. USB data storage is not allowed to be modified by anyone after storage, and must be sealed and submitted to the chief judge for proper preservation. The evaluation scoring sheet the measurement scoring sheet should be signed and confirmed by each judge involved in the evaluation and then submitted to the expert leader for proper preservation.。

3.7　Ranking

Scores will be aggregated for ranking. In case of tied total scores, Task 1 scores will be used as the tiebreaker, followed by Tasks 2, 3, 4, and 5 in sequence.

3.8　Result Announcement

Results will be announced at the closing ceremony.

3.9　Awards

3.9.1　Certificates

All teams will receive certificates issued by the competition organizers.

3.9.2　Medals and Awards

Gold, silver, bronze medals, and merit awards will be awarded. Teams will be ranked globally:

Top 6 teams: Gold, silver, and bronze medals + certificates.

Teams ranked 7–9: Merit awards + certificates.

3.9.3　Other Awards

Certificates for referees and experts.

“Outstanding Contribution Awards” for organizations with exceptional contributions.

“Excellent Organization Awards” for countries with active participation, pre-competition training, and no rule violations.

4　Technical Platform

4.1　Digital Design Platform for Mechanical Products

4.1.1　Computer Configuration

Processor: Intel Core i5-12500 (or equivalent)

Memory: 16GB

Storage: 512GB SSD

Graphics Card: GT730 4GB

Monitor: ≥21 inches

4.1.2　Software

ZWCAD Mechanical Education Edition 2025

ZW3D 2025 Education Edition

ZW3Di EDU

Figure 1  Software interface

4.1.3　Software Features

‌Standard Parts Library‌: Built-in with 56 major categories and nearly 300,000 standard parts catalogs, covering12 professional fields such as machinery, automobiles, and molds, supporting parametric modification and custom expansion. ‌

‌Intelligent Drawing Tools‌: Providing an intelligent system that can automatically complete 80% of the annotation work and synchronize the update of text data; including professional drawing tools such as process grooves and tooling grooves shortening the design cycle.Report Format

Reports must be submitted in PDF format.

Figure 2  Software interface

4.2　Report making generate format

Unified in PDF format.

5　Safety Regulations

5.1　Safety Training

The safety officer will organize training for all referees, staff, and participants. Only those who pass the training assessment are allowed to participate.

5.2　Safety Facilities

The competition venue must meet the following requirements:

1. a) Equipped with safety barriers, emergency exits, fire-fighting equipment, safety operation guidelines, and evacuation signs;
2. b) Entrance security checks to prohibit unauthorized items.

5.3　Medical Support

Medical personnel and first-aid facilities must be on-site with emergency response protocols in place.