Material performance testing system under fixed multi-field coupling effect in hypergravity environment

Patent metadata

Field	Value
Publication number	US-11609165-B2
Application number	US-201917040997-A
Country	US
Kind code	B2
Filing date	Oct 9, 2019
Priority date	Jun 20, 2019
Publication date	Mar 21, 2023
Grant date	Mar 21, 2023

Abstract

Provided is a material performance testing system under a fixed multi-field coupling effect in a hypergravity environment, including a hoisted sealed cabin, a bearing frame, a high-temperature furnace, a mechanical test device, and a buffer device. The bearing frame and the high-temperature furnace are fixedly mounted inside the hoisted sealed cabin. The bearing frame is covered on the high-temperature furnace. The buffer device is mounted at a bottom of the high-temperature furnace. Upper and lower ends of the mechanical test device are connected in a top of the bearing frame and the bottom of the high-temperature furnace. A sample is connected and mounted at an end of the mechanical test device.

First claim

What is claimed is:

1. A material performance testing system under a fixed multi-field coupling effect in a hypergravity environment, comprising a hoisted sealed cabin, a bearing frame, a high-temperature furnace, a mechanical test device, and a buffer device; the bearing frame and the high-temperature furnace are fixedly mounted on an inside of the hoisted sealed cabin, the bearing frame is covered on the high-temperature furnace, the buffer device is mounted at a bottom in the high-temperature furnace, an upper end and a lower end of the mechanical test device are connected in a top of the bearing frame and a bottom of the high-temperature furnace, and a sample is connected and mounted to an end of the mechanical test device;
the high-temperature furnace is fixed in a hypergravity test cabin, the high-temperature furnace comprises an upper furnace, a middle furnace, a lower furnace, and a heat insulation layer, a high-strength furnace tube, a heating, and a furnace carrier arranged in order from top to bottom, the upper furnace is composed of an upper heat insulation cover, an upper cavity outer casing, an upper cavity middle casing, an upper cavity heat insulation layer, and an upper cavity lower fixing cover, the upper cavity outer casing, the upper cavity middle casing, and the upper cavity heat insulation layer are respectively mounted from an outside to an inside to form an upper furnace three-layer structure, the upper heat insulation cover and the upper cavity lower fixing cover are respectively mounted on an upper end and a lower end of the upper furnace three-layer structure so that the upper furnace three-layer structure is fixedly connected, there is a gap as an air heat insulation layer between the upper cavity outer casing and the upper cavity middle casing and between the upper cavity middle casing and the upper cavity heat insulation layer, the middle furnace is composed of a middle heat insulation cover, a middle cavity outer casing, a middle cavity middle casing, a middle cavity heat insulation layer, and a middle cavity lower fixing cover, the middle cavity outer casing, the middle cavity middle casing, and the middle cavity heat insulation layer are respectively mounted from an outside to an inside to form a middle furnace three-layer structure, the middle heat insulation cover and the middle cavity lower fixing cover are respectively mounted on an upper end and a lower end of the middle furnace three-layer structure so that the middle furnace three-layer structure is fixedly connected, there is a gap as an air heat insulation layer between the middle cavity outer casing and the middle cavity middle casing and between the middle cavity middle casing and the middle cavity heat insulation layer, the upper cavity lower fixing cover of the upper furnace and the middle heat insulation cover of the middle furnace are fixedly connected, the lower furnace is composed of a lower heat insulation cover, a lower cavity outer casing, a lower cavity middle casing, a lower cavity heat insulation layer, and a lower cavity lower fixing cover, the lower cavity outer casing, the lower cavity middle casing, and the lower cavity heat insulation layer are respectively mounted from an outside to an inside to form a lower furnace three-layer structure, the lower heat insulation cover and the lower cavity lower fixing cover are respectively mounted on an upper end and a lower end of the lower furnace three-layer structure so that the lower furnace three-layer structure is fixedly connected, there is a gap as an air heat insulation layer between the lower cavity outer casing and the lower cavity middle casing and between the lower cavity middle casing and the lower cavity heat insulation layer, the middle cavity lower fixing cover of the middle furnace and the lower heat insulation cover of the lower furnace are fixedly connected, the furnace carrier is disposed at a bottom of the lower cavity heat insulation layer of the lower furnace, the high-strength furnace tube is disposed on the furnace carrier, the heat insulation layer is respectively filled between an outside of the high-strength furnace tube and the upper cavity heat insulation layer of the upper furnace, the middle cavity heat insulation layer of the middle furnace, and the lower cavity heat insulation layer of the lower furnace, a spiral groove is machined on an inside of the high-strength furnace tube, the spiral groove is provided with a spiral heating element, the spiral groove is provided with a heat dissipation channel on a side facing an inner wall of the high-strength furnace tube, and the heat generated by the spiral heating element is uniformly radiated to a center of the high-strength furnace tube via the heat dissipation channel;
the mechanical test device is disposed in the hypergravity test cabin, the mechanical test device comprises a tie-rod, a fixed wire structure, a chuck, a thermocouple, a tightening nut, and a surface force loading block, a top of the tie-rod is fixedly connected to a center of the top of the bearing frame in the hoisted sealed cabin, the tie-rod is used to withstand a tensile stress generated by a volume force and surface force coupling effect during a material performance test, a bottom end of the tie-rod is connected to an upper end of the sample via the chuck, and the sample is a sample of mechanical performance of a material to be tested, a lower end of the sample is provided with an external thread, and the external thread at the lower end of the sample is screwed into a threaded hole of the surface force loading block and fastened and connected by the tightening nut, the surface force loading block is a block structure with adjustable own weight, and different surface forces are applied to the sample via the surface force loading block of a different weight combined with a centrifugal force of a hypergravity centrifuge at a different rotation speed, a lower end surface of the surface force loading block is disposed on a buffer device, and the buffer device is disposed at a bottom of the hypergravity test cabin, detection ends of three thermocouples are welded at different positions of the sample, strain gauges are mounted and welded on the sample, output ends of the three thermocouples and the strain gauges are led out by a wire and connected to an external signal collector, a plurality of fixed wire structures are mounted in a middle of the tie-rod, and the wire is led out via the fixed wire structures and fixed in position, a lower portion of the tie-rod and the sample are disposed in the high-strength furnace tube of the high-temperature furnace, and the surface force loading block is extended through the high-strength furnace tube of the high-temperature furnace into the buffer device.

2. The material performance testing system under the fixed multi-field coupling effect in the hypergravity environment of claim 1 , wherein the hoisted sealed cabin comprises an upper sealing dome and a hoisted sealed cavity, a cavity is provided inside the hoisted sealed cavity, an opening is formed at an upper end of the cavity, sidewalls on both sides of the hoisted sealed cavity are connected outward with a cabin lug, the cabin lugs on both sides are hingedly connected to a rotating arm of a hanging basket of the hypergravity centrifuge, the upper sealing dome is connected to an opening end surface of the cavity of the hoisted sealed cavity via bolt mounting and is connected by sealing, a cabin interface member is mounted in a center of the upper sealing dome, the cabin interface member comprises an upper glass press-fit flange, an upper flange fastening screw, a quartz glass, and a vacuum socket, the quartz glass is fixed and mounted at an opening of a center at a top of a communication upper sealing cabin cover via the upper glass press-fit flange, the upper glass press-fit flange is fixed to the top of the communicat

Assignees

• Univ Zhejiang

Inventors

• Wei Hua
• Wang Jiangwei
• Lin Weian
• Zhang Ze
• Chen Yunmin

Classifications

• G01N2203/0019

  Compressive · CPC title

• G01N3/18 Primary

  Performing tests at high or low temperatures · CPC title

• G01N2203/0226

  High temperature; Heating means · CPC title

• F27B17/02 Primary

  specially designed for laboratory use · CPC title

• G01N2203/0026

  Combination of several types of applied forces · CPC title