---
title: "Truck Chassis"
industry: "Motor Vehicle Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:TRUCK_CHASSIS"
  data_integrity_hash: "5703dcea2076da33f8ae4a518bad01f7"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:TRUCK_CHASSIS"
  data_source_uri: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/truck-chassis.md"
  official_resource_url: "https://cnfx.com/industry/motor-vehicle-manufacturing/product/truck-chassis"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-25 MPa bending stress, 0-15 MPa torsional stress, -40°C to 120°C ambient temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 345
    unit: "MPa"
    consequence: "High-cycle fatigue from cyclic bending loads exceeding 207 MPa at stress concentrators (weld toes, bolt holes), yielding at 345 MPa from overload, Euler buckling at critical slenderness ratio &gt;100"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Corrosion-induced thickness reduction of 30% in critical cross-sections"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Hot-dip galvanizing to 85μm zinc coating, cathodic protection at -0.85V vs Cu/CuSO4"
  - node_2:
      trigger: "Resonant vibration at 8-12 Hz matching chassis natural frequency"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dynamic vibration absorbers tuned to 10Hz ±0.5Hz, stiffener plates increasing natural frequency to 15Hz"
bom_nodes:
  frame-rails-longitudinal-members:
    type: "component"
    urn: "URN:CNFX:ME:FRAME_RAILS_LONGITUDINAL_MEMBERS"
    interface_type: "physical-logic-coupled"
  crossmembers:
    type: "part"
    urn: "URN:CNFX:ME:CROSSMEMBERS"
    interface_type: "physical-logic-coupled"
  suspension-mounting-brackets:
    type: "component"
    urn: "URN:CNFX:ME:SUSPENSION_MOUNTING_BRACKETS"
    interface_type: "physical-logic-coupled"
  outrigger-mounting-pads:
    type: "component"
    urn: "URN:CNFX:ME:OUTRIGGER_MOUNTING_PADS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/truck-chassis.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "3fa873efffdb78e73add8e1e2f9d9c677b9c80c66eb02a599f80e303c886bf0c"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Truck Chassis

## 1. Technical Definition
The structural framework of a truck that supports the crane assembly and provides mounting points for all major components.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-25 MPa bending stress, 0-15 MPa torsional stress, -40°C to 120°C ambient temperature**. Failure boundary: **Yield strength of 345 MPa for structural steel (ASTM A572 Grade 50), fatigue limit at 10^7 cycles: 207 MPa for welded joints, buckling critical load: 1.5×design load**, Mechanism: **High-cycle fatigue from cyclic bending loads exceeding 207 MPa at stress concentrators (weld toes, bolt holes), yielding at 345 MPa from overload, Euler buckling at critical slenderness ratio &gt;100**.

### 2.1 Analytical Physics Model
Governed by the **Frame Structural Deflection Analysis**:

> **Primary Equation**: $\delta = \frac{5 q L^4}{384 E I}$  
> **Engineering Impact**: Ensures structural stability for multi-stage machines.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| q | Uniform Load | Engineering Constant |
| E | Elastic Modulus | Engineering Constant |
| I | Moment of Inertia | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Corrosion-induced thickness reduction of 30% in critical cross-sections | 8 | Localized plastic collapse at mounting points under 1.5×design load | Hot-dip galvanizing to 85μm zinc coating, cathodic protection at -0.85V vs Cu/CuSO4 |
| Resonant vibration at 8-12 Hz matching chassis natural frequency | 8 | Accelerated fatigue crack propagation at weld toes exceeding 1mm/year growth rate | Dynamic vibration absorbers tuned to 10Hz ±0.5Hz, stiffener plates increasing natural frequency to 15Hz |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Crossmembers](https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/crossmembers.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **CNC Laser Cutting System**, **Robotic Welding System**, **Industrial Paint Booth**  
**Downstream Applications**: Mobile Crane Truck, Utility Service Truck, Refuse Collection Truck  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What materials are used in your truck chassis construction?
**A**: Our truck chassis are constructed from high-strength low-alloy steel (HSLA), providing superior durability and load-bearing capacity for crane assemblies and heavy-duty applications.

### Q: What components are included in the truck chassis BOM?
**A**: The bill of materials includes frame rails (longitudinal members), crossmembers, suspension mounting brackets, and outrigger mounting pads - all designed to support crane assemblies and major vehicle components.

### Q: How does this chassis support crane assembly installation?
**A**: The chassis provides reinforced structural framework with specifically engineered mounting points and outrigger pads that distribute crane weight evenly, ensuring stability and safety during lifting operations.

## 6. Manufacturing Compliance

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Truck Chassis](https://cnfx.com/industry/motor-vehicle-manufacturing/product/truck-chassis)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: TRUCK_CHASSIS | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 0bbc9401
