CN-121849241-B - Light rear bracket of off-road command military vehicle

CN121849241BCN 121849241 BCN121849241 BCN 121849241BCN-121849241-B

Abstract

The application relates to the technical field of vehicle engineering and discloses a lightweight rear bracket of an off-road command military vehicle, which comprises a main base, a mounting platform and a space truss structure, wherein the main base is used for being connected with a vehicle body, the mounting platform is used for bearing equipment, the space truss structure is used as a main bearing frame, two ends of the space truss structure are respectively connected with the main base and the mounting platform, the space truss structure is composed of rod pieces, and the rod pieces are distributed in a non-uniform arrangement mode. The non-uniform arrangement of the rods is generated based on a topology optimization algorithm. The topology optimization algorithm aims at achieving structural mass minimization under off-road load spectrum constraints. In the space truss structure, a plurality of rod pieces are intersected to form a connecting node, and the connecting node and the rod pieces connected with the connecting node are manufactured through an integrated forming process. The topological optimization algorithm based on the actually measured off-road load spectrum is used for driving and generating a bionic non-uniform space truss structure, so that the material is only distributed on an efficient force transmission path, and redundant quality is eliminated from the source.

Inventors

MA GUOZHONG
REN DONGDONG
GAO YAN

Assignees

上海铂铭行汽车有限公司

Dates

Publication Date: 20260508
Application Date: 20260318

Claims (4)

1. The utility model provides a cross country command military vehicle lightweight back support which characterized in that includes: a main base (1) for connection with a vehicle body; a mounting platform (2) for carrying equipment; The space truss structure (3) is used as a main bearing frame, and two ends of the space truss structure are respectively connected with the main base (1) and the mounting platform (2); wherein the space truss structure (3) is composed of rod pieces, and the distribution of the rod pieces is non-uniformly arranged; the non-uniform arrangement of the rods is generated based on a topology optimization algorithm; the topological optimization algorithm aims at minimizing the structural quality under the constraint of an off-road load spectrum; In the space truss structure (3), a plurality of rod pieces are intersected to form a connecting node (4), and the connecting node (4) and the rod pieces connected with the connecting node are manufactured through an integrated forming process; the integrated forming process is a metal additive manufacturing process; The non-uniform arrangement of the rods forms at least one continuous main bearing path between the main base (1) and the mounting platform (2), and the rods forming the main bearing path are main bearing ribs (301); the main bearing rib (301) is a variable-section tubular member.
2. The off-road command military vehicle lightweight rear bracket of claim 1, wherein the internal cavity of the main load-carrying bar (301) is filled with regular multicellular material (302).
3. The off-road command military vehicle lightweight rear bracket according to claim 1, characterized in that the mounting platform (2) is provided with a device mounting interface (5), the device mounting interface (5) comprising a quick lock mechanism (501) for securing the device and an elastic vibration isolator (502) arranged between the mounting platform (2) and the device.
4. The lightweight rear bracket of an off-road command military vehicle according to claim 1, characterized in that the mounting platform (2) is connected with the space truss structure (3) through an elastic vibration isolation assembly.

Description

Light rear bracket of off-road command military vehicle Technical Field The invention relates to the technical field of vehicle engineering, in particular to a lightweight rear bracket of an off-road command military vehicle. Background The off-road command military vehicle is used as a battlefield maneuvering command center, is required to maneuver at high speed under extreme road conditions, and ensures that the carried precise communication, reconnaissance and calculation equipment continuously and stably work. The performance of the rear bracket, which serves as a key load-bearing structure for connecting the vehicle body and the task equipment, is directly related to the effective load, the maneuverability and the reliability of the task system of the vehicle. The traditional rear bracket of the military off-road vehicle mostly adopts a frame structure formed by welding steel sectional materials or splicing bolts. The design mainly depends on engineering experience, the structural form is a regular geometric framework, the problems of obvious material redundancy and excessive weight exist, precious vehicle payload space is seriously squeezed, and the cruising and maneuvering capabilities of the vehicle are affected. In terms of load bearing and vibration protection, conventional supports are typically rigid or simply shock-absorbing joints, providing limited static support, lacking systematic countermeasures against off-road complex dynamic environments. The low-frequency large impact and the broadband random vibration generated in the running process of the vehicle can be directly transmitted to precision equipment through the rigid support, so that equipment failure, performance degradation and even hardware damage are easily caused. In addition, the equipment installation and the function expansion mode of the existing bracket are complicated, the existing bracket is fastened by a plurality of bolts, the disassembly and assembly efficiency is low, the structural function is single, and the service requirements of a modern battlefield on quick deployment and flexible reconstruction of a command system are difficult to be met. Therefore, the cross-country command military vehicle rear support in the prior art has outstanding short plates in the aspects of light weight level, dynamic environment adaptability and task agility, and is difficult to adapt to the future high-mobility, high-reliability and modularized combat demands. There is a need for a new lightweight rear bracket solution that can fundamentally achieve structural efficient load bearing, provide excellent equipment protection, and support fast operation. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a lightweight rear bracket of an off-road command military vehicle, which solves the problems of restricting the maneuverability, equipment reliability and quick response capability of the vehicle due to overlarge weight, insufficient vibration protection and low service efficiency of the rear bracket of the traditional off-road command military vehicle. The invention is realized by the following technical scheme that the lightweight rear bracket of the off-road command military vehicle comprises: the main base is used for being connected with the vehicle body; The mounting platform is used for bearing equipment; the space truss structure is used as a main bearing frame, and two ends of the space truss structure are respectively connected with the main base and the mounting platform; The space truss structure is composed of rod pieces, and the rod pieces are distributed unevenly. Preferably, the non-uniform arrangement of the rods is generated based on a topology optimization algorithm. Preferably, the topology optimization algorithm aims to achieve structural mass minimization under off-road load spectrum constraints. Preferably, in the space truss structure, a plurality of rod pieces are intersected to form a connection node, and the connection node and the rod pieces connected with the connection node are manufactured through an integrated forming process. Preferably, the integrated molding process is a metal additive manufacturing process. Preferably, the non-uniform arrangement of the rods forms at least one continuous main bearing path between the main base and the mounting platform, and the rods forming the main bearing path are main bearing ribs. Preferably, the main bearing rib is a variable-section tubular member. Preferably, the inner cavity of the main bearing rib is filled with regular multicellular material. Preferably, the mounting platform is provided with an equipment mounting interface, and the equipment mounting interface comprises a quick locking mechanism for fixing equipment and an elastic vibration isolator arranged between the mounting platform and the equipment. Preferably, the mounting platform is connected with the space truss structure through an elastic vibration isolation a